1nul - Revision history

OCA at 07:59, 14 February 2024

2024-02-14T07:59:45Z

←Older revision		Revision as of 07:59, 14 February 2024
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	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NUL FirstGlance]. <br>		<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NUL 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=SO4:SULFATE+ION'>SO4</scene>~~</td></tr>	+	</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models\|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution\|Resolution]] 1.8Å</td></tr>
-	<tr id='~~activity~~'><td class="sblockLbl"><b>~~Activity~~:</b></td><td class="sblockDat"><~~span class~~='~~plainlinks~~'>~~[https:~~/~~/en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase]~~, ~~with EC number [https~~:~~//www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22]~~ </~~span~~></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=SO4:SULFATE+ION'>SO4</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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [https://pdbe.org/1nul PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [https://www.ebi.ac.uk/pdbsum/1nul PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nul ProSAT]</span></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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [https://pdbe.org/1nul PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [https://www.ebi.ac.uk/pdbsum/1nul PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nul ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[https://www.uniprot.org/uniprot/XGPT_ECOLI XGPT_ECOLI]] Acts on guanine, xanthine and to a lesser extent hypoxanthine.<ref>PMID:9100006</ref>	+	[https://www.uniprot.org/uniprot/XGPT_ECOLI XGPT_ECOLI] Acts on guanine, xanthine and to a lesser extent hypoxanthine.<ref>PMID:9100006</ref>
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
Line 20:		Line 20:
	</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary\|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1nul ConSurf].		</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary\|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1nul ConSurf].
	<div style="clear:both"></div>		<div style="clear:both"></div>
-	<div style="background-color:#fffaf0;">
-	== Publication Abstract from PubMed ==
-	Xanthine phosphoribosyltransferase (XPRT; EC 2.4.2.22) from Escherichia coli is a tetrameric enzyme having 152 residues per subunit. XPRT catalyzes the transfer of the phosphoribosyl group from 5-phospho-alpha-D-ribosyl 1-pyrophosphate (PRib-PP) to the 6-oxopurine bases guanine, xanthine, and hypoxanthine to form GMP, XMP, and IMP, respectively. Crystals grown in the absence of substrate or product were used to determine the structure of XPRT at a resolution of 1.8 A, by multiple isomorphous replacement. The core structure of XPRT includes a five-stranded parallel beta-sheet surrounded by three alpha-helices, which is similar to that observed in other known phosphoribosyltransferase (PRTase) structures. The XPRT structure also has several interesting features. A glutamine residue in the purine binding site may be responsible for the altered 6-oxopurine base specificity seen in this enzyme compared to other 6-oxopurine PRTases. Also, we observe both a magnesium ion and a sulfate ion bound at the PRib-PP binding site of XPRT. The sulfate ion interacts with Arg-37 which has a cis-peptide conformation, and the magnesium ion interacts with Asp-89, a highly conserved acidic residue in the PRib-PP binding site motif. The XPRT structure also incorporates a feature which has not been observed in other PRTase structures. The C-terminal 12 residues of XPRT adopt an unusual extended conformation and make interactions with a neighboring subunit. The very last residue, Arg-152, could form part of the active site of a symmetry-related subunit in the XPRT tetramer.
-
-	Crystal structure of Escherichia coli xanthine phosphoribosyltransferase.,Vos S, de Jersey J, Martin JL Biochemistry. 1997 Apr 8;36(14):4125-34. PMID:9100006<ref>PMID:9100006</ref>
-
-	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	</div>
-	<div class="pdbe-citations 1nul" style="background-color:#fffaf0;"></div>

	==See Also==		==See Also==
Line 38:		Line 29:
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: ~~Xanthine phosphoribosyltransferase]]~~	+	[[Category: De Jersey J]]
-	~~[[Category:~~ Jersey, J De]]	+	[[Category: Martin JL]]
-	[[Category: Martin~~, J L~~]]	+	[[Category: Vos S]]
-	[[Category: Vos, S]]	+
-	~~[[Category: Phosphoribosyltransferase]]~~	+
-	~~[[Category: Purine salvage enzyme]]~~	+
-	~~[[Category: Transferase~~]]	+

OCA at 09:53, 12 May 2021

2021-05-12T09:53:33Z

←Older revision		Revision as of 09:53, 12 May 2021
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	<StructureSection load='1nul' size='340' side='right'caption='[[1nul]], [[Resolution\|resolution]] 1.80Å' scene=''>		<StructureSection load='1nul' size='340' side='right'caption='[[1nul]], [[Resolution\|resolution]] 1.80Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=1NUL FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NUL 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=SO4:SULFATE+ION'>SO4</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=SO4:SULFATE+ION'>SO4</scene></td></tr>
-	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[~~http~~://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [~~http~~://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </span></td></tr>	+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [~~http~~://pdbe.org/1nul PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/1nul PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=1nul ProSAT]</span></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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [https://pdbe.org/1nul PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [https://www.ebi.ac.uk/pdbsum/1nul PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nul ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[~~http~~://www.uniprot.org/uniprot/XGPT_ECOLI XGPT_ECOLI]] Acts on guanine, xanthine and to a lesser extent hypoxanthine.<ref>PMID:9100006</ref>	+	[[https://www.uniprot.org/uniprot/XGPT_ECOLI XGPT_ECOLI]] Acts on guanine, xanthine and to a lesser extent hypoxanthine.<ref>PMID:9100006</ref>
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
Line 31:		Line 31:

	==See Also==		==See Also==
-	*[[Phosphoribosyltransferase\|Phosphoribosyltransferase]]	+	*[[Phosphoribosyltransferase 3D structures\|Phosphoribosyltransferase 3D structures]]
	== References ==		== References ==
	<references/>		<references/>

OCA at 06:54, 7 August 2019

2019-08-07T06:54:38Z

←Older revision		Revision as of 06:54, 7 August 2019
Line 1:		Line 1:

	==XPRTASE FROM E. COLI==		==XPRTASE FROM E. COLI==
-	<StructureSection load='1nul' size='340' side='right' caption='[[1nul]], [[Resolution\|resolution]] 1.80Å' scene=''>	+	<StructureSection load='1nul' size='340' side='right'caption='[[1nul]], [[Resolution\|resolution]] 1.80Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1NUL FirstGlance]. <br>		<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1NUL FirstGlance]. <br>
Line 14:		Line 14:
	Check<jmol>		Check<jmol>
	<jmolCheckbox>		<jmolCheckbox>
-	<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nu/1nul_consurf.spt"</scriptWhenChecked>	+	<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nu/1nul_consurf.spt"</scriptWhenChecked>
	<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>		<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
	<text>to colour the structure by Evolutionary Conservation</text>		<text>to colour the structure by Evolutionary Conservation</text>
Line 29:		Line 29:
	</div>		</div>
	<div class="pdbe-citations 1nul" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 1nul" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Phosphoribosyltransferase\|Phosphoribosyltransferase]]
	== References ==		== References ==
	<references/>		<references/>
Line 34:		Line 37:
	</StructureSection>		</StructureSection>
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
		+	[[Category: Large Structures]]
	[[Category: Xanthine phosphoribosyltransferase]]		[[Category: Xanthine phosphoribosyltransferase]]
	[[Category: Jersey, J De]]		[[Category: Jersey, J De]]

OCA at 10:03, 1 November 2017

2017-11-01T10:03:56Z

←Older revision		Revision as of 10:03, 1 November 2017
Line 1:		Line 1:
		+
	==XPRTASE FROM E. COLI==		==XPRTASE FROM E. COLI==
	<StructureSection load='1nul' size='340' side='right' caption='[[1nul]], [[Resolution\|resolution]] 1.80Å' scene=''>		<StructureSection load='1nul' size='340' side='right' caption='[[1nul]], [[Resolution\|resolution]] 1.80Å' 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=SO4:SULFATE+ION'>SO4</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=SO4:SULFATE+ION'>SO4</scene></td></tr>
	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </span></td></tr>		<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [http://pdbe.org/1nul PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [http://www.ebi.ac.uk/pdbsum/1nul 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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [http://pdbe.org/1nul PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [http://www.ebi.ac.uk/pdbsum/1nul PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1nul ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 17:		Line 18:
	<text>to colour the structure by Evolutionary Conservation</text>		<text>to colour the structure by Evolutionary Conservation</text>
	</jmolCheckbox>		</jmolCheckbox>
-	</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary\|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/~~chain_selection~~.php?pdb_ID=~~2ata~~ ConSurf].	+	</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary\|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1nul ConSurf].
	<div style="clear:both"></div>		<div style="clear:both"></div>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
Line 28:		Line 29:
	</div>		</div>
	<div class="pdbe-citations 1nul" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 1nul" style="background-color:#fffaf0;"></div>
-
-	==See Also==
-	*[[Phosphoribosyltransferase\|Phosphoribosyltransferase]]
	== References ==		== References ==
	<references/>		<references/>

OCA at 12:08, 11 September 2015

2015-09-11T12:08:17Z

←Older revision		Revision as of 12:08, 11 September 2015
Line 5:		Line 5:
	</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=SO4:SULFATE+ION'>SO4</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=SO4:SULFATE+ION'>SO4</scene></td></tr>
	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </span></td></tr>		<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [http://www.ebi.ac.uk/pdbsum/1nul 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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [http://pdbe.org/1nul PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [http://www.ebi.ac.uk/pdbsum/1nul PDBsum]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 27:		Line 27:
	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 1nul" style="background-color:#fffaf0;"></div>

	==See Also==		==See Also==

OCA at 16:15, 25 December 2014

2014-12-25T16:15:20Z

←Older revision		Revision as of 16:15, 25 December 2014
Line 3:		Line 3:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1NUL FirstGlance]. <br>		<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1NUL FirstGlance]. <br>
-	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><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=SO4:SULFATE+ION'>SO4</scene></td></tr>
-	<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </span></td></tr>	+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </span></td></tr>
-	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [http://www.ebi.ac.uk/pdbsum/1nul 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=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [http://www.ebi.ac.uk/pdbsum/1nul PDBsum]</span></td></tr>
-	<table>	+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/XGPT_ECOLI XGPT_ECOLI]] Acts on guanine, xanthine and to a lesser extent hypoxanthine.<ref>PMID:9100006</ref>
	== Evolutionary Conservation ==		== Evolutionary Conservation ==
	[[Image:Consurf_key_small.gif\|200px\|right]]		[[Image:Consurf_key_small.gif\|200px\|right]]
Line 34:		Line 36:
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
	[[Category: Xanthine phosphoribosyltransferase]]		[[Category: Xanthine phosphoribosyltransferase]]
-	[[Category: Jersey, J De.]]	+	[[Category: Jersey, J De]]
-	[[Category: Martin, J L.]]	+	[[Category: Martin, J L]]
-	[[Category: Vos, S.]]	+	[[Category: Vos, S]]
	[[Category: Phosphoribosyltransferase]]		[[Category: Phosphoribosyltransferase]]
	[[Category: Purine salvage enzyme]]		[[Category: Purine salvage enzyme]]
	[[Category: Transferase]]		[[Category: Transferase]]

OCA at 09:23, 3 October 2014

2014-10-03T09:23:31Z

←Older revision		Revision as of 09:23, 3 October 2014
Line 1:		Line 1:
-	~~{{STRUCTURE_1nul~~\| ~~PDB~~=1nul \| ~~SCENE~~= }}	+	==XPRTASE FROM E. COLI==
-	===~~XPRTASE FROM E~~. ~~COLI~~===	+	<StructureSection load='1nul' size='340' side='right' caption='[[1nul]], [[Resolution\|resolution]] 1.80Å' scene=''>
-	~~{{ABSTRACT_PUBMED_9100006}}~~	+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[1nul]] is a 2 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=1NUL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1NUL FirstGlance]. <br>
		+	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br>
		+	<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Xanthine_phosphoribosyltransferase Xanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.22 2.4.2.22] </span></td></tr>
		+	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1nul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nul OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1nul RCSB], [http://www.ebi.ac.uk/pdbsum/1nul PDBsum]</span></td></tr>
		+	<table>
		+	== Evolutionary Conservation ==
		+	[[Image:Consurf_key_small.gif\|200px\|right]]
		+	Check<jmol>
		+	<jmolCheckbox>
		+	<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nu/1nul_consurf.spt"</scriptWhenChecked>
		+	<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
		+	<text>to colour the structure by Evolutionary Conservation</text>
		+	</jmolCheckbox>
		+	</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary\|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
		+	<div style="clear:both"></div>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Xanthine phosphoribosyltransferase (XPRT; EC 2.4.2.22) from Escherichia coli is a tetrameric enzyme having 152 residues per subunit. XPRT catalyzes the transfer of the phosphoribosyl group from 5-phospho-alpha-D-ribosyl 1-pyrophosphate (PRib-PP) to the 6-oxopurine bases guanine, xanthine, and hypoxanthine to form GMP, XMP, and IMP, respectively. Crystals grown in the absence of substrate or product were used to determine the structure of XPRT at a resolution of 1.8 A, by multiple isomorphous replacement. The core structure of XPRT includes a five-stranded parallel beta-sheet surrounded by three alpha-helices, which is similar to that observed in other known phosphoribosyltransferase (PRTase) structures. The XPRT structure also has several interesting features. A glutamine residue in the purine binding site may be responsible for the altered 6-oxopurine base specificity seen in this enzyme compared to other 6-oxopurine PRTases. Also, we observe both a magnesium ion and a sulfate ion bound at the PRib-PP binding site of XPRT. The sulfate ion interacts with Arg-37 which has a cis-peptide conformation, and the magnesium ion interacts with Asp-89, a highly conserved acidic residue in the PRib-PP binding site motif. The XPRT structure also incorporates a feature which has not been observed in other PRTase structures. The C-terminal 12 residues of XPRT adopt an unusual extended conformation and make interactions with a neighboring subunit. The very last residue, Arg-152, could form part of the active site of a symmetry-related subunit in the XPRT tetramer.

-	~~==Function==~~	+	Crystal structure of Escherichia coli xanthine phosphoribosyltransferase.,Vos S, de Jersey J, Martin JL Biochemistry. 1997 Apr 8;36(14):4125-34. PMID:9100006<ref>PMID:9100006</ref>
-	~~[[http://www~~.~~uniprot.org/uniprot/XGPT_ECOLI XGPT_ECOLI]] Acts on guanine~~, ~~xanthine and to a lesser extent hypoxanthine~~.<ref>PMID:9100006</ref>	+

-	~~==About this Structure==~~	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	~~[[1nul]] is~~ a ~~2 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=1NUL OCA].~~	+	</div>

	==See Also==		==See Also==
	*[[Phosphoribosyltransferase\|Phosphoribosyltransferase]]		*[[Phosphoribosyltransferase\|Phosphoribosyltransferase]]
-		+	== References ==
-	==~~Reference~~==	+	<references/>
-	~~<ref group="xtra">PMID:009100006</ref>~~<references ~~group="xtra"~~/><~~references~~/>	+	__TOC__
		+	</StructureSection>
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
	[[Category: Xanthine phosphoribosyltransferase]]		[[Category: Xanthine phosphoribosyltransferase]]

OCA at 10:59, 16 April 2014

2014-04-16T10:59:46Z

←Older revision		Revision as of 10:59, 16 April 2014
Line 1:		Line 1:
-	[[Image:1nul.png\|left\|200px]]
-
-	<!--
-	The line below this paragraph, containing "STRUCTURE_1nul", creates the "Structure Box" on the page.
-	You may change the PDB parameter (which sets the PDB file loaded into the applet)
-	or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
-	or leave the SCENE parameter empty for the default display.
-	-->
	{{STRUCTURE_1nul\| PDB=1nul \| SCENE= }}		{{STRUCTURE_1nul\| PDB=1nul \| SCENE= }}
-
	===XPRTASE FROM E. COLI===		===XPRTASE FROM E. COLI===
		+	{{ABSTRACT_PUBMED_9100006}}

-		+	==Function==
-	~~<!--~~	+	[[http://www.uniprot.org/uniprot/XGPT_ECOLI XGPT_ECOLI]] Acts on guanine, xanthine and to a lesser extent hypoxanthine.<ref>PMID:9100006</ref>
-	~~The line below this paragraph, {{ABSTRACT_PUBMED_9100006}}, adds the Publication Abstract to the page~~	+
-	~~(as it appears on PubMed at~~ http://www.~~pubmed~~.~~gov)~~, ~~where 9100006 is the PubMed ID number~~.	+
-	-->	+
-	~~{{ABSTRACT_PUBMED_9100006}}~~	+

	==About this Structure==		==About this Structure==
	[[1nul]] is a 2 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=1NUL OCA].		[[1nul]] is a 2 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=1NUL OCA].
		+
		+	==See Also==
		+	*[[Phosphoribosyltransferase\|Phosphoribosyltransferase]]

	==Reference==		==Reference==
-	<ref group="xtra">PMID:009100006</ref><references group="xtra"/>	+	<ref group="xtra">PMID:009100006</ref><references group="xtra"/><references/>
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
	[[Category: Xanthine phosphoribosyltransferase]]		[[Category: Xanthine phosphoribosyltransferase]]

OCA: Protected "1nul" [edit=sysop:move=sysop]

2011-11-16T10:24:03Z

Protected "1nul" [edit=sysop:move=sysop]

←Older revision

Revision as of 10:24, 16 November 2011

OCA at 10:24, 16 November 2011

2011-11-16T10:24:02Z

←Older revision		Revision as of 10:24, 16 November 2011
Line 1:		Line 1:
-	{{Seed}}
	[[Image:1nul.png\|left\|200px]]		[[Image:1nul.png\|left\|200px]]

Line 20:		Line 19:

	==About this Structure==		==About this Structure==
-	~~1NUL~~ is a 2 ~~chains~~ structure ~~of sequences~~ 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=1NUL OCA].	+	[[1nul]] is a 2 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=1NUL OCA].

	==Reference==		==Reference==
-	<ref group="xtra">PMID:~~9100006~~</ref><references group="xtra"/>	+	<ref group="xtra">PMID:009100006</ref><references group="xtra"/>
	[[Category: Escherichia coli]]		[[Category: Escherichia coli]]
	[[Category: Xanthine phosphoribosyltransferase]]		[[Category: Xanthine phosphoribosyltransferase]]
Line 32:		Line 31:
	[[Category: Purine salvage enzyme]]		[[Category: Purine salvage enzyme]]
	[[Category: Transferase]]		[[Category: Transferase]]
-
-	''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 21:28:55 2009''