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New page: left|200px<br /> <applet load="19gs" size="450" color="white" frame="true" align="right" spinBox="true" caption="19gs, resolution 1.90Å" /> '''GLUTATHIONE S-TRANS... |
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== | ==Glutathione s-transferase p1-1== | ||
Glutathione S -transferases (GSTs) play a pivotal role in the | <StructureSection load='19gs' size='340' side='right'caption='[[19gs]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[19gs]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=19GS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=19GS FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BSP:3,3-(4,5,6,7-TETRABROMO-3-OXO-1(3H)-ISOBENZOFURANYLIDENE)BIS+[6-HYDROXYBENZENESULFONIC+ACID]ANION'>BSP</scene>, <scene name='pdbligand=GSH:GLUTATHIONE'>GSH</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</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=19gs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=19gs OCA], [https://pdbe.org/19gs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=19gs RCSB], [https://www.ebi.ac.uk/pdbsum/19gs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=19gs ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/GSTP1_HUMAN GSTP1_HUMAN] Conjugation of reduced glutathione to a wide number of exogenous and endogenous hydrophobic electrophiles. Regulates negatively CDK5 activity via p25/p35 translocation to prevent neurodegeneration.<ref>PMID:21668448</ref> | |||
== 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/9g/19gs_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/main_output.php?pdb_ID=19gs ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Glutathione S -transferases (GSTs) play a pivotal role in the detoxification of foreign chemicals and toxic metabolites. They were originally termed ligandins because of their ability to bind large molecules (molecular masses >400 Da), possibly for storage and transport roles. The location of the ligandin site in mammalian GSTs is still uncertain despite numerous studies in recent years. Here we show by X-ray crystallography that the ligandin binding site in human pi class GST P1-1 occupies part of one of the substrate binding sites. This work has been extended to the determination of a number of enzyme complex crystal structures which show that very large ligands are readily accommodated into this substrate binding site and in all, but one case, causes no significant movement of protein side-chains. Some of these molecules make use of a hitherto undescribed binding site located in a surface pocket of the enzyme. This site is conserved in most, but not all, classes of GSTs suggesting it may play an important functional role. | |||
The ligandin (non-substrate) binding site of human Pi class glutathione transferase is located in the electrophile binding site (H-site).,Oakley AJ, Lo Bello M, Nuccetelli M, Mazzetti AP, Parker MW J Mol Biol. 1999 Aug 27;291(4):913-26. PMID:10452896<ref>PMID:10452896</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
[[ | <div class="pdbe-citations 19gs" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Glutathione S-transferase 3D structures|Glutathione S-transferase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Bello | [[Category: Lo Bello M]] | ||
[[Category: Oakley | [[Category: Oakley AJ]] | ||
[[Category: Parker | [[Category: Parker MW]] | ||
Latest revision as of 13:42, 2 August 2023
Glutathione s-transferase p1-1Glutathione s-transferase p1-1
Structural highlights
FunctionGSTP1_HUMAN Conjugation of reduced glutathione to a wide number of exogenous and endogenous hydrophobic electrophiles. Regulates negatively CDK5 activity via p25/p35 translocation to prevent neurodegeneration.[1] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedGlutathione S -transferases (GSTs) play a pivotal role in the detoxification of foreign chemicals and toxic metabolites. They were originally termed ligandins because of their ability to bind large molecules (molecular masses >400 Da), possibly for storage and transport roles. The location of the ligandin site in mammalian GSTs is still uncertain despite numerous studies in recent years. Here we show by X-ray crystallography that the ligandin binding site in human pi class GST P1-1 occupies part of one of the substrate binding sites. This work has been extended to the determination of a number of enzyme complex crystal structures which show that very large ligands are readily accommodated into this substrate binding site and in all, but one case, causes no significant movement of protein side-chains. Some of these molecules make use of a hitherto undescribed binding site located in a surface pocket of the enzyme. This site is conserved in most, but not all, classes of GSTs suggesting it may play an important functional role. The ligandin (non-substrate) binding site of human Pi class glutathione transferase is located in the electrophile binding site (H-site).,Oakley AJ, Lo Bello M, Nuccetelli M, Mazzetti AP, Parker MW J Mol Biol. 1999 Aug 27;291(4):913-26. PMID:10452896[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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