4uy8
From Proteopedia
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==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== | ||
- | < | + | <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> | ||
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<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/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 == | ||
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<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
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[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
+ | [[Category: Large Structures]] | ||
[[Category: Beckmann, R]] | [[Category: Beckmann, R]] | ||
[[Category: Berninghausen, O]] | [[Category: Berninghausen, O]] |
Revision as of 17:59, 6 March 2020
Molecular basis for the ribosome functioning as a L-tryptophan sensor - Cryo-EM structure of a TnaC stalled E.coli ribosome
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