4uy8 - Revision history

OCA at 07:51, 29 March 2023

OCA — Wed, 29 Mar 2023 07:51:04 GMT

←Older revision		Revision as of 07:51, 29 March 2023
Line 3:		Line 3:
	<SX load='4uy8' size='340' side='right' viewer='molstar' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>		<SX load='4uy8' size='340' side='right' viewer='molstar' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[4uy8]] is a 34 chain structure with sequence from [~~http~~://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4UY8 OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://proteopedia.org/fgij/fg.htm?mol=4UY8 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[4uy8]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4UY8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4UY8 FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:~~MAGNESIUM~~+~~ION~~'>MG</scene>, <scene name='pdbligand=~~TRP~~:~~TRYPTOPHAN~~'>~~TRP~~</scene>, <scene name='pdbligand=ZN:~~ZINC+ION~~'>ZN</scene>~~</td></tr>~~	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-	~~<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat">~~<scene name='pdbligand=~~5MU~~:~~5-METHYLURIDINE~~+~~5-MONOPHOSPHATE~~'>~~5MU~~</scene></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [https://pdbe.org/4uy8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [https://www.ebi.ac.uk/pdbsum/4uy8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4uy8 ProSAT]</span></td></tr>
-	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[~~http~~://proteopedia.org/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [~~http~~://pdbe.org/4uy8 PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/4uy8 PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=4uy8 ProSAT]</span></td></tr>	+
	</table>		</table>
	== Function ==		== Function ==
-	[~~[http~~://www.uniprot.org/uniprot/RL15_ECOLI RL15_ECOLI]] This protein binds the 5S rRNA. It is required for the late stages of subunit assembly, and is essential for 5S rRNA assembly onto the ribosome.[HAMAP-Rule:MF_01341_B] [[http://www.uniprot.org/uniprot/X7QXR5_ECOLX X7QXR5_ECOLX]] Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.[HAMAP-Rule:MF_00382][RuleBase:RU000560] [[http://www.uniprot.org/uniprot/E7HV64_ECOLX E7HV64_ECOLX]] Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.[HAMAP-Rule:MF_00736][RuleBase:RU003979][SAAS:SAAS00021701] [[http://www.uniprot.org/uniprot/W0L2N0_ECOLX W0L2N0_ECOLX]] One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit.[HAMAP-Rule:MF_01326] One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01326] [[http://www.uniprot.org/uniprot/X7QBP9_ECOLX X7QBP9_ECOLX]] This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.[HAMAP-Rule:MF_01365][RuleBase:RU003870] [[http://www.uniprot.org/uniprot/W0L2B9_ECOLX W0L2B9_ECOLX]] This protein binds to 23S rRNA in the presence of protein L20.[HAMAP-Rule:MF_01363][RuleBase:RU000562][SAAS:SAAS00030247] [[http://www.uniprot.org/uniprot/X7R0V6_ECOLX X7R0V6_ECOLX]] This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site.[HAMAP-Rule:MF_00402][RuleBase:RU000559] [[http://www.uniprot.org/uniprot/E1JB10_ECOLX E1JB10_ECOLX]] The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome.[HAMAP-Rule:MF_01331] This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g., L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01331][RuleBase:RU004008] [[http://www.uniprot.org/uniprot/X7QRP4_ECOLX X7QRP4_ECOLX]] Forms part of the polypeptide exit tunnel.[HAMAP-Rule:MF_01328] One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01328] [[http://www.uniprot.org/uniprot/E1PGS6_ECOAB E1PGS6_ECOAB]] Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome.[HAMAP-Rule:MF_01367][RuleBase:RU003950] [[http://www.uniprot.org/uniprot/X7QRN2_ECOLX X7QRN2_ECOLX]] This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance.[HAMAP-Rule:MF_01337] [[http://www.uniprot.org/uniprot/D7XL00_ECOLX D7XL00_ECOLX]] Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs.[HAMAP-Rule:MF_01342][RuleBase:RU004414] [[http://www.uniprot.org/uniprot/D6IEL8_ECOLX D6IEL8_ECOLX]] One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01325][RuleBase:RU003906] [[http://www.uniprot.org/uniprot/C6EGE8_ECOBD C6EGE8_ECOBD]] One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.[HAMAP-Rule:MF_01369] [[http://www.uniprot.org/uniprot/E1IXH4_ECOLX E1IXH4_ECOLX]] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors.[HAMAP-Rule:MF_00362][SAAS:SAAS00104953] [[http://www.uniprot.org/uniprot/E3PCX7_ECOH1 E3PCX7_ECOH1]] This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance.[HAMAP-Rule:MF_01336][SAAS:SAAS00023223] [[http://www.uniprot.org/uniprot/X7QS81_ECOLX X7QS81_ECOLX]] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome.[HAMAP-Rule:MF_01320] [[http://www.uniprot.org/uniprot/X7QU92_ECOLX X7QU92_ECOLX]] This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs.[HAMAP-Rule:MF_01333] [[http://www.uniprot.org/uniprot/X7QR95_ECOLX X7QR95_ECOLX]] This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.[HAMAP-Rule:MF_01366][RuleBase:RU003878][SAAS:SAAS00012479]	+	[https://www.uniprot.org/uniprot/RL32_ECOLI RL32_ECOLI]
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 25:		Line 24:
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Beckmann, R]]	+	[[Category: Beckmann R]]
-	[[Category: Berninghausen, O]]	+	[[Category: Berninghausen O]]
-	[[Category: Bischoff, L]]	+	[[Category: Bischoff L]]
-	~~[[Category: Ribosome]]~~	+
-	~~[[Category: Tnac]]~~	+
-	~~[[Category: Translation regulation~~]]	+

OCA at 19:17, 10 April 2020

OCA — Fri, 10 Apr 2020 19:17:11 GMT

←Older revision		Revision as of 19:17, 10 April 2020
Line 3:		Line 3:
	<SX load='4uy8' size='340' side='right' viewer='molstar' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>		<SX load='4uy8' size='340' side='right' viewer='molstar' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[4uy8]] is a 34 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4UY8 OCA]. For a <b>guided tour on the structure components</b> use [http://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=4UY8 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[4uy8]] is a 34 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4UY8 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=4UY8 FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
	<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene></td></tr>		<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene></td></tr>
-	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://pdbe.org/4uy8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4uy8 ProSAT]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://pdbe.org/4uy8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4uy8 ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==

OCA at 17:59, 6 March 2020

OCA — Fri, 06 Mar 2020 17:59:50 GMT

←Older revision		Revision as of 17:59, 6 March 2020
Line 1:		Line 1:
-	~~{{Large structure}}~~	+
	==Molecular basis for the ribosome functioning as a L-tryptophan sensor - Cryo-EM structure of a TnaC stalled E.coli ribosome==		==Molecular basis for the ribosome functioning as a L-tryptophan sensor - Cryo-EM structure of a TnaC stalled E.coli ribosome==
-	<~~StructureSection~~ load='4uy8' size='340' side='right' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>	+	<SX load='4uy8' size='340' side='right' viewer='molstar' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[4uy8]] is a 34 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4UY8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4UY8 FirstGlance]. <br>		<table><tr><td colspan='2'>[[4uy8]] is a 34 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4UY8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4UY8 FirstGlance]. <br>
Line 8:		Line 8:
	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://pdbe.org/4uy8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4uy8 ProSAT]</span></td></tr>		<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://pdbe.org/4uy8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4uy8 ProSAT]</span></td></tr>
	</table>		</table>
-	{{Large structure}}
	== Function ==		== Function ==
-	[[http://www.uniprot.org/uniprot/RL15_ECOLI RL15_ECOLI]] This protein binds the 5S rRNA. It is required for the late stages of subunit assembly, and is essential for 5S rRNA assembly onto the ribosome.[HAMAP-Rule:MF_01341_B] [[http://www.uniprot.org/uniprot/X7QXR5_ECOLX X7QXR5_ECOLX]] Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.[HAMAP-Rule:MF_00382][RuleBase:RU000560] [[http://www.uniprot.org/uniprot/E7HV64_ECOLX E7HV64_ECOLX]] Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.[HAMAP-Rule:MF_00736][RuleBase:RU003979][SAAS:SAAS00021701] [[http://www.uniprot.org/uniprot/W0L2N0_ECOLX W0L2N0_ECOLX]] One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit.[HAMAP-Rule:MF_01326] One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01326] [[http://www.uniprot.org/uniprot/X7QBP9_ECOLX X7QBP9_ECOLX]] This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.[HAMAP-Rule:MF_01365][RuleBase:RU003870] [[http://www.uniprot.org/uniprot/W0L2B9_ECOLX W0L2B9_ECOLX]] This protein binds to 23S rRNA in the presence of protein L20.[HAMAP-Rule:MF_01363][RuleBase:RU000562][SAAS:SAAS00030247] [[http://www.uniprot.org/uniprot/X7R0V6_ECOLX X7R0V6_ECOLX]] This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site.[HAMAP-Rule:MF_00402][RuleBase:RU000559] [[http://www.uniprot.org/uniprot/E1JB10_ECOLX E1JB10_ECOLX]] The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome.[HAMAP-Rule:MF_01331] This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g., L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01331][RuleBase:RU004008~~] [[http://www.uniprot.org/uniprot/E1PGS6_ECOAB E1PGS6_ECOAB]] Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome.[HAMAP-Rule:MF_01367][RuleBase:RU003950~~] [[http://www.uniprot.org/uniprot/X7QRP4_ECOLX X7QRP4_ECOLX]] Forms part of the polypeptide exit tunnel.[HAMAP-Rule:MF_01328] One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01328] [[http://www.uniprot.org/uniprot/X7QRN2_ECOLX X7QRN2_ECOLX]] This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance.[HAMAP-Rule:MF_01337] [[http://www.uniprot.org/uniprot/D7XL00_ECOLX D7XL00_ECOLX]] Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs.[HAMAP-Rule:MF_01342][RuleBase:RU004414] [[http://www.uniprot.org/uniprot/D6IEL8_ECOLX D6IEL8_ECOLX]] One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01325][RuleBase:RU003906] [[http://www.uniprot.org/uniprot/C6EGE8_ECOBD C6EGE8_ECOBD]] One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.[HAMAP-Rule:MF_01369] [[http://www.uniprot.org/uniprot/E1IXH4_ECOLX E1IXH4_ECOLX]] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors.[HAMAP-Rule:MF_00362][SAAS:SAAS00104953] [[http://www.uniprot.org/uniprot/E3PCX7_ECOH1 E3PCX7_ECOH1]] This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance.[HAMAP-Rule:MF_01336][SAAS:SAAS00023223] [[http://www.uniprot.org/uniprot/X7QS81_ECOLX X7QS81_ECOLX]] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome.[HAMAP-Rule:MF_01320] [[http://www.uniprot.org/uniprot/X7QU92_ECOLX X7QU92_ECOLX]] This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs.[HAMAP-Rule:MF_01333] [[http://www.uniprot.org/uniprot/X7QR95_ECOLX X7QR95_ECOLX]] This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.[HAMAP-Rule:MF_01366][RuleBase:RU003878][SAAS:SAAS00012479]	+	[[http://www.uniprot.org/uniprot/RL15_ECOLI RL15_ECOLI]] This protein binds the 5S rRNA. It is required for the late stages of subunit assembly, and is essential for 5S rRNA assembly onto the ribosome.[HAMAP-Rule:MF_01341_B] [[http://www.uniprot.org/uniprot/X7QXR5_ECOLX X7QXR5_ECOLX]] Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.[HAMAP-Rule:MF_00382][RuleBase:RU000560] [[http://www.uniprot.org/uniprot/E7HV64_ECOLX E7HV64_ECOLX]] Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.[HAMAP-Rule:MF_00736][RuleBase:RU003979][SAAS:SAAS00021701] [[http://www.uniprot.org/uniprot/W0L2N0_ECOLX W0L2N0_ECOLX]] One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit.[HAMAP-Rule:MF_01326] One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01326] [[http://www.uniprot.org/uniprot/X7QBP9_ECOLX X7QBP9_ECOLX]] This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.[HAMAP-Rule:MF_01365][RuleBase:RU003870] [[http://www.uniprot.org/uniprot/W0L2B9_ECOLX W0L2B9_ECOLX]] This protein binds to 23S rRNA in the presence of protein L20.[HAMAP-Rule:MF_01363][RuleBase:RU000562][SAAS:SAAS00030247] [[http://www.uniprot.org/uniprot/X7R0V6_ECOLX X7R0V6_ECOLX]] This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site.[HAMAP-Rule:MF_00402][RuleBase:RU000559] [[http://www.uniprot.org/uniprot/E1JB10_ECOLX E1JB10_ECOLX]] The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome.[HAMAP-Rule:MF_01331] This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g., L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01331][RuleBase:RU004008] [[http://www.uniprot.org/uniprot/X7QRP4_ECOLX X7QRP4_ECOLX]] Forms part of the polypeptide exit tunnel.[HAMAP-Rule:MF_01328] One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01328] [[http://www.uniprot.org/uniprot/E1PGS6_ECOAB E1PGS6_ECOAB]] Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome.[HAMAP-Rule:MF_01367][RuleBase:RU003950] [[http://www.uniprot.org/uniprot/X7QRN2_ECOLX X7QRN2_ECOLX]] This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance.[HAMAP-Rule:MF_01337] [[http://www.uniprot.org/uniprot/D7XL00_ECOLX D7XL00_ECOLX]] Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs.[HAMAP-Rule:MF_01342][RuleBase:RU004414] [[http://www.uniprot.org/uniprot/D6IEL8_ECOLX D6IEL8_ECOLX]] One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01325][RuleBase:RU003906] [[http://www.uniprot.org/uniprot/C6EGE8_ECOBD C6EGE8_ECOBD]] One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.[HAMAP-Rule:MF_01369] [[http://www.uniprot.org/uniprot/E1IXH4_ECOLX E1IXH4_ECOLX]] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors.[HAMAP-Rule:MF_00362][SAAS:SAAS00104953] [[http://www.uniprot.org/uniprot/E3PCX7_ECOH1 E3PCX7_ECOH1]] This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance.[HAMAP-Rule:MF_01336][SAAS:SAAS00023223] [[http://www.uniprot.org/uniprot/X7QS81_ECOLX X7QS81_ECOLX]] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome.[HAMAP-Rule:MF_01320] [[http://www.uniprot.org/uniprot/X7QU92_ECOLX X7QU92_ECOLX]] This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs.[HAMAP-Rule:MF_01333] [[http://www.uniprot.org/uniprot/X7QR95_ECOLX X7QR95_ECOLX]] This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.[HAMAP-Rule:MF_01366][RuleBase:RU003878][SAAS:SAAS00012479]
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 23:		Line 22:
	<references/>		<references/>
	__TOC__		__TOC__
-	</~~StructureSection~~>	+	</SX>
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
		+	[[Category: Large Structures]]
	[[Category: Beckmann, R]]		[[Category: Beckmann, R]]
	[[Category: Berninghausen, O]]		[[Category: Berninghausen, O]]

OCA at 08:20, 3 October 2018

OCA — Wed, 03 Oct 2018 08:20:28 GMT

←Older revision		Revision as of 08:20, 3 October 2018
Line 10:		Line 10:
	{{Large structure}}		{{Large structure}}
	== Function ==		== Function ==
-	[[http://www.uniprot.org/uniprot/RL15_ECOLI RL15_ECOLI]] This protein binds the 5S rRNA. It is required for the late stages of subunit assembly, and is essential for 5S rRNA assembly onto the ribosome.[HAMAP-Rule:MF_01341_B] [[http://www.uniprot.org/uniprot/X7QXR5_ECOLX X7QXR5_ECOLX]] Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.[HAMAP-Rule:MF_00382][RuleBase:RU000560] [[http://www.uniprot.org/uniprot/E7HV64_ECOLX E7HV64_ECOLX]] Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.[HAMAP-Rule:MF_00736][RuleBase:RU003979][SAAS:SAAS00021701] [[http://www.uniprot.org/uniprot/W0L2N0_ECOLX W0L2N0_ECOLX]] One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit.[HAMAP-Rule:MF_01326] One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01326] [[http://www.uniprot.org/uniprot/X7QBP9_ECOLX X7QBP9_ECOLX]] This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.[HAMAP-Rule:MF_01365][RuleBase:RU003870] [[http://www.uniprot.org/uniprot/W0L2B9_ECOLX W0L2B9_ECOLX]] This protein binds to 23S rRNA in the presence of protein L20.[HAMAP-Rule:MF_01363][RuleBase:RU000562][SAAS:SAAS00030247] [[http://www.uniprot.org/uniprot/X7R0V6_ECOLX X7R0V6_ECOLX]] This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site.[HAMAP-Rule:MF_00402][RuleBase:RU000559] [[http://www.uniprot.org/uniprot/E1JB10_ECOLX E1JB10_ECOLX]] The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome.[HAMAP-Rule:MF_01331] This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g., L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01331][RuleBase:RU004008] [[http://www.uniprot.org/uniprot/X7QRP4_ECOLX X7QRP4_ECOLX]] Forms part of the polypeptide exit tunnel.[HAMAP-Rule:MF_01328] One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01328~~] [[http://www.uniprot.org/uniprot/E1PGS6_ECOAB E1PGS6_ECOAB]] Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome.[HAMAP-Rule:MF_01367][RuleBase:RU003950~~] [[http://www.uniprot.org/uniprot/X7QRN2_ECOLX X7QRN2_ECOLX]] This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance.[HAMAP-Rule:MF_01337] [[http://www.uniprot.org/uniprot/D7XL00_ECOLX D7XL00_ECOLX]] Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs.[HAMAP-Rule:MF_01342][RuleBase:RU004414] [[http://www.uniprot.org/uniprot/D6IEL8_ECOLX D6IEL8_ECOLX]] One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01325][RuleBase:RU003906] [[http://www.uniprot.org/uniprot/C6EGE8_ECOBD C6EGE8_ECOBD]] One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.[HAMAP-Rule:MF_01369] [[http://www.uniprot.org/uniprot/E1IXH4_ECOLX E1IXH4_ECOLX]] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors.[HAMAP-Rule:MF_00362][SAAS:SAAS00104953] [[http://www.uniprot.org/uniprot/E3PCX7_ECOH1 E3PCX7_ECOH1]] This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance.[HAMAP-Rule:MF_01336][SAAS:SAAS00023223] [[http://www.uniprot.org/uniprot/X7QS81_ECOLX X7QS81_ECOLX]] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome.[HAMAP-Rule:MF_01320] [[http://www.uniprot.org/uniprot/X7QU92_ECOLX X7QU92_ECOLX]] This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs.[HAMAP-Rule:MF_01333] [[http://www.uniprot.org/uniprot/X7QR95_ECOLX X7QR95_ECOLX]] This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.[HAMAP-Rule:MF_01366][RuleBase:RU003878][SAAS:SAAS00012479]	+	[[http://www.uniprot.org/uniprot/RL15_ECOLI RL15_ECOLI]] This protein binds the 5S rRNA. It is required for the late stages of subunit assembly, and is essential for 5S rRNA assembly onto the ribosome.[HAMAP-Rule:MF_01341_B] [[http://www.uniprot.org/uniprot/X7QXR5_ECOLX X7QXR5_ECOLX]] Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.[HAMAP-Rule:MF_00382][RuleBase:RU000560] [[http://www.uniprot.org/uniprot/E7HV64_ECOLX E7HV64_ECOLX]] Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.[HAMAP-Rule:MF_00736][RuleBase:RU003979][SAAS:SAAS00021701] [[http://www.uniprot.org/uniprot/W0L2N0_ECOLX W0L2N0_ECOLX]] One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit.[HAMAP-Rule:MF_01326] One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01326] [[http://www.uniprot.org/uniprot/X7QBP9_ECOLX X7QBP9_ECOLX]] This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.[HAMAP-Rule:MF_01365][RuleBase:RU003870] [[http://www.uniprot.org/uniprot/W0L2B9_ECOLX W0L2B9_ECOLX]] This protein binds to 23S rRNA in the presence of protein L20.[HAMAP-Rule:MF_01363][RuleBase:RU000562][SAAS:SAAS00030247] [[http://www.uniprot.org/uniprot/X7R0V6_ECOLX X7R0V6_ECOLX]] This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site.[HAMAP-Rule:MF_00402][RuleBase:RU000559] [[http://www.uniprot.org/uniprot/E1JB10_ECOLX E1JB10_ECOLX]] The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome.[HAMAP-Rule:MF_01331] This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g., L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01331][RuleBase:RU004008] [[http://www.uniprot.org/uniprot/E1PGS6_ECOAB E1PGS6_ECOAB]] Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome.[HAMAP-Rule:MF_01367][RuleBase:RU003950] [[http://www.uniprot.org/uniprot/X7QRP4_ECOLX X7QRP4_ECOLX]] Forms part of the polypeptide exit tunnel.[HAMAP-Rule:MF_01328] One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01328] [[http://www.uniprot.org/uniprot/X7QRN2_ECOLX X7QRN2_ECOLX]] This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance.[HAMAP-Rule:MF_01337] [[http://www.uniprot.org/uniprot/D7XL00_ECOLX D7XL00_ECOLX]] Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs.[HAMAP-Rule:MF_01342][RuleBase:RU004414] [[http://www.uniprot.org/uniprot/D6IEL8_ECOLX D6IEL8_ECOLX]] One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01325][RuleBase:RU003906] [[http://www.uniprot.org/uniprot/C6EGE8_ECOBD C6EGE8_ECOBD]] One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.[HAMAP-Rule:MF_01369] [[http://www.uniprot.org/uniprot/E1IXH4_ECOLX E1IXH4_ECOLX]] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors.[HAMAP-Rule:MF_00362][SAAS:SAAS00104953] [[http://www.uniprot.org/uniprot/E3PCX7_ECOH1 E3PCX7_ECOH1]] This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance.[HAMAP-Rule:MF_01336][SAAS:SAAS00023223] [[http://www.uniprot.org/uniprot/X7QS81_ECOLX X7QS81_ECOLX]] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome.[HAMAP-Rule:MF_01320] [[http://www.uniprot.org/uniprot/X7QU92_ECOLX X7QU92_ECOLX]] This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs.[HAMAP-Rule:MF_01333] [[http://www.uniprot.org/uniprot/X7QR95_ECOLX X7QR95_ECOLX]] This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.[HAMAP-Rule:MF_01366][RuleBase:RU003878][SAAS:SAAS00012479]
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==

OCA at 12:10, 5 August 2016

OCA — Fri, 05 Aug 2016 12:10:57 GMT

←Older revision		Revision as of 12:10, 5 August 2016
Line 1:		Line 1:
		+	{{Large structure}}
	==Molecular basis for the ribosome functioning as a L-tryptophan sensor - Cryo-EM structure of a TnaC stalled E.coli ribosome==		==Molecular basis for the ribosome functioning as a L-tryptophan sensor - Cryo-EM structure of a TnaC stalled E.coli ribosome==
	<StructureSection load='4uy8' size='340' side='right' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>		<StructureSection load='4uy8' size='340' side='right' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>
Line 5:		Line 6:
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
	<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene></td></tr>		<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene></td></tr>
-	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://pdbe.org/4uy8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4uy8 ProSAT]</span></td></tr>
	</table>		</table>
		+	{{Large structure}}
	== Function ==		== Function ==
	[[http://www.uniprot.org/uniprot/RL15_ECOLI RL15_ECOLI]] This protein binds the 5S rRNA. It is required for the late stages of subunit assembly, and is essential for 5S rRNA assembly onto the ribosome.[HAMAP-Rule:MF_01341_B] [[http://www.uniprot.org/uniprot/X7QXR5_ECOLX X7QXR5_ECOLX]] Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.[HAMAP-Rule:MF_00382][RuleBase:RU000560] [[http://www.uniprot.org/uniprot/E7HV64_ECOLX E7HV64_ECOLX]] Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.[HAMAP-Rule:MF_00736][RuleBase:RU003979][SAAS:SAAS00021701] [[http://www.uniprot.org/uniprot/W0L2N0_ECOLX W0L2N0_ECOLX]] One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit.[HAMAP-Rule:MF_01326] One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01326] [[http://www.uniprot.org/uniprot/X7QBP9_ECOLX X7QBP9_ECOLX]] This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.[HAMAP-Rule:MF_01365][RuleBase:RU003870] [[http://www.uniprot.org/uniprot/W0L2B9_ECOLX W0L2B9_ECOLX]] This protein binds to 23S rRNA in the presence of protein L20.[HAMAP-Rule:MF_01363][RuleBase:RU000562][SAAS:SAAS00030247] [[http://www.uniprot.org/uniprot/X7R0V6_ECOLX X7R0V6_ECOLX]] This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site.[HAMAP-Rule:MF_00402][RuleBase:RU000559] [[http://www.uniprot.org/uniprot/E1JB10_ECOLX E1JB10_ECOLX]] The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome.[HAMAP-Rule:MF_01331] This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g., L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01331][RuleBase:RU004008] [[http://www.uniprot.org/uniprot/X7QRP4_ECOLX X7QRP4_ECOLX]] Forms part of the polypeptide exit tunnel.[HAMAP-Rule:MF_01328] One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01328] [[http://www.uniprot.org/uniprot/E1PGS6_ECOAB E1PGS6_ECOAB]] Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome.[HAMAP-Rule:MF_01367][RuleBase:RU003950] [[http://www.uniprot.org/uniprot/X7QRN2_ECOLX X7QRN2_ECOLX]] This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance.[HAMAP-Rule:MF_01337] [[http://www.uniprot.org/uniprot/D7XL00_ECOLX D7XL00_ECOLX]] Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs.[HAMAP-Rule:MF_01342][RuleBase:RU004414] [[http://www.uniprot.org/uniprot/D6IEL8_ECOLX D6IEL8_ECOLX]] One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01325][RuleBase:RU003906] [[http://www.uniprot.org/uniprot/C6EGE8_ECOBD C6EGE8_ECOBD]] One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.[HAMAP-Rule:MF_01369] [[http://www.uniprot.org/uniprot/E1IXH4_ECOLX E1IXH4_ECOLX]] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors.[HAMAP-Rule:MF_00362][SAAS:SAAS00104953] [[http://www.uniprot.org/uniprot/E3PCX7_ECOH1 E3PCX7_ECOH1]] This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance.[HAMAP-Rule:MF_01336][SAAS:SAAS00023223] [[http://www.uniprot.org/uniprot/X7QS81_ECOLX X7QS81_ECOLX]] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome.[HAMAP-Rule:MF_01320] [[http://www.uniprot.org/uniprot/X7QU92_ECOLX X7QU92_ECOLX]] This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs.[HAMAP-Rule:MF_01333] [[http://www.uniprot.org/uniprot/X7QR95_ECOLX X7QR95_ECOLX]] This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.[HAMAP-Rule:MF_01366][RuleBase:RU003878][SAAS:SAAS00012479]		[[http://www.uniprot.org/uniprot/RL15_ECOLI RL15_ECOLI]] This protein binds the 5S rRNA. It is required for the late stages of subunit assembly, and is essential for 5S rRNA assembly onto the ribosome.[HAMAP-Rule:MF_01341_B] [[http://www.uniprot.org/uniprot/X7QXR5_ECOLX X7QXR5_ECOLX]] Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.[HAMAP-Rule:MF_00382][RuleBase:RU000560] [[http://www.uniprot.org/uniprot/E7HV64_ECOLX E7HV64_ECOLX]] Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.[HAMAP-Rule:MF_00736][RuleBase:RU003979][SAAS:SAAS00021701] [[http://www.uniprot.org/uniprot/W0L2N0_ECOLX W0L2N0_ECOLX]] One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit.[HAMAP-Rule:MF_01326] One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01326] [[http://www.uniprot.org/uniprot/X7QBP9_ECOLX X7QBP9_ECOLX]] This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.[HAMAP-Rule:MF_01365][RuleBase:RU003870] [[http://www.uniprot.org/uniprot/W0L2B9_ECOLX W0L2B9_ECOLX]] This protein binds to 23S rRNA in the presence of protein L20.[HAMAP-Rule:MF_01363][RuleBase:RU000562][SAAS:SAAS00030247] [[http://www.uniprot.org/uniprot/X7R0V6_ECOLX X7R0V6_ECOLX]] This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site.[HAMAP-Rule:MF_00402][RuleBase:RU000559] [[http://www.uniprot.org/uniprot/E1JB10_ECOLX E1JB10_ECOLX]] The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome.[HAMAP-Rule:MF_01331] This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g., L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01331][RuleBase:RU004008] [[http://www.uniprot.org/uniprot/X7QRP4_ECOLX X7QRP4_ECOLX]] Forms part of the polypeptide exit tunnel.[HAMAP-Rule:MF_01328] One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01328] [[http://www.uniprot.org/uniprot/E1PGS6_ECOAB E1PGS6_ECOAB]] Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome.[HAMAP-Rule:MF_01367][RuleBase:RU003950] [[http://www.uniprot.org/uniprot/X7QRN2_ECOLX X7QRN2_ECOLX]] This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance.[HAMAP-Rule:MF_01337] [[http://www.uniprot.org/uniprot/D7XL00_ECOLX D7XL00_ECOLX]] Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs.[HAMAP-Rule:MF_01342][RuleBase:RU004414] [[http://www.uniprot.org/uniprot/D6IEL8_ECOLX D6IEL8_ECOLX]] One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01325][RuleBase:RU003906] [[http://www.uniprot.org/uniprot/C6EGE8_ECOBD C6EGE8_ECOBD]] One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.[HAMAP-Rule:MF_01369] [[http://www.uniprot.org/uniprot/E1IXH4_ECOLX E1IXH4_ECOLX]] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors.[HAMAP-Rule:MF_00362][SAAS:SAAS00104953] [[http://www.uniprot.org/uniprot/E3PCX7_ECOH1 E3PCX7_ECOH1]] This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance.[HAMAP-Rule:MF_01336][SAAS:SAAS00023223] [[http://www.uniprot.org/uniprot/X7QS81_ECOLX X7QS81_ECOLX]] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome.[HAMAP-Rule:MF_01320] [[http://www.uniprot.org/uniprot/X7QU92_ECOLX X7QU92_ECOLX]] This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs.[HAMAP-Rule:MF_01333] [[http://www.uniprot.org/uniprot/X7QR95_ECOLX X7QR95_ECOLX]] This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.[HAMAP-Rule:MF_01366][RuleBase:RU003878][SAAS:SAAS00012479]
Line 17:		Line 19:
	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>		From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
	</div>		</div>
		+	<div class="pdbe-citations 4uy8" style="background-color:#fffaf0;"></div>
	== References ==		== References ==
	<references/>		<references/>

OCA at 18:43, 25 December 2014

OCA — Thu, 25 Dec 2014 18:43:55 GMT

←Older revision		Revision as of 18:43, 25 December 2014
Line 7:		Line 7:
	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum]</span></td></tr>		<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum]</span></td></tr>
	</table>		</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/RL15_ECOLI RL15_ECOLI]] This protein binds the 5S rRNA. It is required for the late stages of subunit assembly, and is essential for 5S rRNA assembly onto the ribosome.[HAMAP-Rule:MF_01341_B] [[http://www.uniprot.org/uniprot/X7QXR5_ECOLX X7QXR5_ECOLX]] Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.[HAMAP-Rule:MF_00382][RuleBase:RU000560] [[http://www.uniprot.org/uniprot/E7HV64_ECOLX E7HV64_ECOLX]] Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.[HAMAP-Rule:MF_00736][RuleBase:RU003979][SAAS:SAAS00021701] [[http://www.uniprot.org/uniprot/W0L2N0_ECOLX W0L2N0_ECOLX]] One of the proteins that surrounds the polypeptide exit tunnel on the outside of the subunit.[HAMAP-Rule:MF_01326] One of two assembly initiator proteins, it binds directly to the 5'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01326] [[http://www.uniprot.org/uniprot/X7QBP9_ECOLX X7QBP9_ECOLX]] This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center.[HAMAP-Rule:MF_01365][RuleBase:RU003870] [[http://www.uniprot.org/uniprot/W0L2B9_ECOLX W0L2B9_ECOLX]] This protein binds to 23S rRNA in the presence of protein L20.[HAMAP-Rule:MF_01363][RuleBase:RU000562][SAAS:SAAS00030247] [[http://www.uniprot.org/uniprot/X7R0V6_ECOLX X7R0V6_ECOLX]] This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site.[HAMAP-Rule:MF_00402][RuleBase:RU000559] [[http://www.uniprot.org/uniprot/E1JB10_ECOLX E1JB10_ECOLX]] The globular domain of the protein is located near the polypeptide exit tunnel on the outside of the subunit, while an extended beta-hairpin is found that lines the wall of the exit tunnel in the center of the 70S ribosome.[HAMAP-Rule:MF_01331] This protein binds specifically to 23S rRNA; its binding is stimulated by other ribosomal proteins, e.g., L4, L17, and L20. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01331][RuleBase:RU004008] [[http://www.uniprot.org/uniprot/X7QRP4_ECOLX X7QRP4_ECOLX]] Forms part of the polypeptide exit tunnel.[HAMAP-Rule:MF_01328] One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.[HAMAP-Rule:MF_01328] [[http://www.uniprot.org/uniprot/E1PGS6_ECOAB E1PGS6_ECOAB]] Binds to 23S rRNA. Forms part of two intersubunit bridges in the 70S ribosome.[HAMAP-Rule:MF_01367][RuleBase:RU003950] [[http://www.uniprot.org/uniprot/X7QRN2_ECOLX X7QRN2_ECOLX]] This is one of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance.[HAMAP-Rule:MF_01337] [[http://www.uniprot.org/uniprot/D7XL00_ECOLX D7XL00_ECOLX]] Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs.[HAMAP-Rule:MF_01342][RuleBase:RU004414] [[http://www.uniprot.org/uniprot/D6IEL8_ECOLX D6IEL8_ECOLX]] One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit.[HAMAP-Rule:MF_01325][RuleBase:RU003906] [[http://www.uniprot.org/uniprot/C6EGE8_ECOBD C6EGE8_ECOBD]] One of the early assembly proteins it binds 23S rRNA. One of the proteins that surrounds the polypeptide exit tunnel on the outside of the ribosome. Forms the main docking site for trigger factor binding to the ribosome.[HAMAP-Rule:MF_01369] [[http://www.uniprot.org/uniprot/E1IXH4_ECOLX E1IXH4_ECOLX]] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors.[HAMAP-Rule:MF_00362][SAAS:SAAS00104953] [[http://www.uniprot.org/uniprot/E3PCX7_ECOH1 E3PCX7_ECOH1]] This is one of the proteins that binds to the 5S RNA in the ribosome where it forms part of the central protuberance.[HAMAP-Rule:MF_01336][SAAS:SAAS00023223] [[http://www.uniprot.org/uniprot/X7QS81_ECOLX X7QS81_ECOLX]] One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome.[HAMAP-Rule:MF_01320] [[http://www.uniprot.org/uniprot/X7QU92_ECOLX X7QU92_ECOLX]] This is 1 of the proteins that binds and probably mediates the attachment of the 5S RNA into the large ribosomal subunit, where it forms part of the central protuberance. In the 70S ribosome it contacts protein S13 of the 30S subunit (bridge B1b), connecting the 2 subunits; this bridge is implicated in subunit movement. Contacts the P site tRNA; the 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs.[HAMAP-Rule:MF_01333] [[http://www.uniprot.org/uniprot/X7QR95_ECOLX X7QR95_ECOLX]] This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly.[HAMAP-Rule:MF_01366][RuleBase:RU003878][SAAS:SAAS00012479]
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==

OCA at 10:09, 19 November 2014

OCA — Wed, 19 Nov 2014 10:09:47 GMT

←Older revision		Revision as of 10:09, 19 November 2014
Line 20:		Line 20:
	</StructureSection>		</StructureSection>
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
-	[[Category: Beckmann, R.]]	+	[[Category: Beckmann, R]]
-	[[Category: Berninghausen, O.]]	+	[[Category: Berninghausen, O]]
-	[[Category: Bischoff, L.]]	+	[[Category: Bischoff, L]]
	[[Category: Ribosome]]		[[Category: Ribosome]]
	[[Category: Tnac]]		[[Category: Tnac]]
	[[Category: Translation regulation]]		[[Category: Translation regulation]]

OCA at 11:16, 29 October 2014

OCA — Wed, 29 Oct 2014 11:16:04 GMT

←Older revision		Revision as of 11:16, 29 October 2014
Line 1:		Line 1:
-	'''~~Unreleased~~ structure'''	+	==Molecular basis for the ribosome functioning as a L-tryptophan sensor - Cryo-EM structure of a TnaC stalled E.coli ribosome==
		+	<StructureSection load='4uy8' size='340' side='right' caption='[[4uy8]], [[Resolution\|resolution]] 3.80Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[4uy8]] is a 34 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4UY8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4UY8 FirstGlance]. <br>
		+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
		+	<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue\|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene></td></tr>
		+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uy8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4uy8 RCSB], [http://www.ebi.ac.uk/pdbsum/4uy8 PDBsum]</span></td></tr>
		+	</table>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Elevated levels of the free amino acid L-tryptophan (L-Trp) trigger expression of the tryptophanase tnaCAB operon in E. coli. Activation depends on tryptophan-dependent ribosomal stalling during translation of the upstream TnaC peptide. Here, we present a cryoelectron microscopy (cryo-EM) reconstruction at 3.8 A resolution of a ribosome stalled by the TnaC peptide. Unexpectedly, we observe two L-Trp molecules in the ribosomal exit tunnel coordinated within composite hydrophobic pockets formed by the nascent TnaC peptide and the tunnel wall. As a result, the peptidyl transferase center (PTC) adopts a distinct conformation that precludes productive accommodation of release factor 2 (RF2), thereby inducing translational stalling. Collectively, our results demonstrate how the translating ribosome can act as a small molecule sensor for gene regulation.

-	~~The entry 4uy8 is ON HOLD until Paper Publication~~	+	Molecular Basis for the Ribosome Functioning as an L-Tryptophan Sensor.,Bischoff L, Berninghausen O, Beckmann R Cell Rep. 2014 Oct 7. pii: S2211-1247(14)00779-7. doi:, 10.1016/j.celrep.2014.09.011. PMID:25310980<ref>PMID:25310980</ref>

-	~~Authors: Bischoff~~, L.~~, Berninghausen, O~~., Beckmann, R.	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-		+	</div>
-	~~Description~~: ~~Molecular basis for the ribosome functioning as a~~ L~~-tryptophan sensor -Cryo-EM structure of a TnaC stalled E~~.~~coli ribosome~~	+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Escherichia coli]]
		+	[[Category: Beckmann, R.]]
		+	[[Category: Berninghausen, O.]]
		+	[[Category: Bischoff, L.]]
		+	[[Category: Ribosome]]
		+	[[Category: Tnac]]
		+	[[Category: Translation regulation]]

OCA at 08:55, 24 September 2014

OCA — Wed, 24 Sep 2014 08:55:27 GMT

←Older revision		Revision as of 08:55, 24 September 2014
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 4uy8 is ON HOLD until ~~sometime in the future~~	+	The entry 4uy8 is ON HOLD until Paper Publication

	Authors: Bischoff, L., Berninghausen, O., Beckmann, R.		Authors: Bischoff, L., Berninghausen, O., Beckmann, R.

	Description: Molecular basis for the ribosome functioning as a L-tryptophan sensor -Cryo-EM structure of a TnaC stalled E.coli ribosome		Description: Molecular basis for the ribosome functioning as a L-tryptophan sensor -Cryo-EM structure of a TnaC stalled E.coli ribosome

OCA: Protected "4uy8" [edit=sysop:move=sysop]

OCA — Wed, 10 Sep 2014 08:46:11 GMT

Protected "4uy8" [edit=sysop:move=sysop]

←Older revision

Revision as of 08:46, 10 September 2014