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1pgt

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Revision as of 16:11, 10 September 2015

CRYSTAL STRUCTURE OF HUMAN GLUTATHIONE S-TRANSFERASE P1-1[V104] COMPLEXED WITH S-HEXYLGLUTATHIONE

Structural highlights

1pgt is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Gene:	GTP_HUMAN (HUMAN)
Activity:	Glutathione transferase, with EC number 2.5.1.18
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[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.^[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 PubMed

Complex structures of a naturally occurring variant of human class pi glutathione S-transferase 1-1 (hGSTP1-1) with either S-hexylglutathione or (9R,10R)-9-(S-glutathionyl)-10-hydroxy-9, 10-dihydrophenanthrene [(9R,10R)-GSPhen] have been determined at resolutions of 1.8 and 1.9 A, respectively. The crystal structures reveal that the xenobiotic substrate-binding site (H-site) is located at a position similar to that observed in class mu GST 1-1 from rat liver (rGSTM1-1). In rGSTM1-1, the H-site is a hydrophobic cavity defined by the side chains of Y6, W7, V9, L12, I111, Y115, F208, and S209. In hGSTP1-1, the cavity is approximately half hydrophobic and half hydrophilic and is defined by the side chains of Y7, F8, V10, R13, V104, Y108, N204, and G205 and five water molecules. A hydrogen bond network connects the five water molecules and the side chains of R13 and N204. V104 is positioned such that the introduction of a methyl group (the result of the V104I mutation) disturbs the H-site water structure and alters the substrate-binding properties of the isozyme. The hydroxyl group of Y7 forms a hydrogen bond (3.2 A) with the sulfur atom of the product. There is a short hydrogen bond (2.5 A) between Y108 (OH) and (9R, 10R)-GSPhen (O5), indicating the hydroxyl group of Y108 as an electrophilic participant in the addition of glutathione to epoxides. An N-(2-hydroxethyl)piperazine-N'-2-ethanesulfonic acid (HEPES) molecule is found in the cavity between beta2 and alphaI. The location and properties of this HEPES-binding site fit a possible non-substrate-binding site that is involved in noncompetitive inhibition of the enzyme.

Structure and function of the xenobiotic substrate-binding site and location of a potential non-substrate-binding site in a class pi glutathione S-transferase.,Ji X, Tordova M, O'Donnell R, Parsons JF, Hayden JB, Gilliland GL, Zimniak P Biochemistry. 1997 Aug 12;36(32):9690-702. PMID:9245401^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Sun KH, Chang KH, Clawson S, Ghosh S, Mirzaei H, Regnier F, Shah K. Glutathione-S-transferase P1 is a critical regulator of Cdk5 kinase activity. J Neurochem. 2011 Sep;118(5):902-14. doi: 10.1111/j.1471-4159.2011.07343.x. Epub , 2011 Jul 8. PMID:21668448 doi:10.1111/j.1471-4159.2011.07343.x
↑ Ji X, Tordova M, O'Donnell R, Parsons JF, Hayden JB, Gilliland GL, Zimniak P. Structure and function of the xenobiotic substrate-binding site and location of a potential non-substrate-binding site in a class pi glutathione S-transferase. Biochemistry. 1997 Aug 12;36(32):9690-702. PMID:9245401 doi:10.1021/bi970805s

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1pgt"

@@ Line 2: / Line 2: @@
 <StructureSection load='1pgt' size='340' side='right' caption='[[1pgt]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1pgt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PGT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1PGT FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1pgt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PGT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1PGT FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EPE:4-(2-HYDROXYETHYL)-1-PIPERAZINE+ETHANESULFONIC+ACID'>EPE</scene>, <scene name='pdbligand=GTX:S-HEXYLGLUTATHIONE'>GTX</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GTP_HUMAN ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GTP_HUMAN ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glutathione_transferase Glutathione transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.18 2.5.1.18] </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=1pgt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pgt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1pgt RCSB], [http://www.ebi.ac.uk/pdbsum/1pgt 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=1pgt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pgt OCA], [http://pdbe.org/1pgt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1pgt RCSB], [http://www.ebi.ac.uk/pdbsum/1pgt PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 28: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1pgt" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 36: / Line 37: @@
 </StructureSection>
 [[Category: Glutathione transferase]]
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Ji, X]]
 [[Category: Detoxification]]
 [[Category: Pi class]]
 [[Category: Transferase]]

1pgt

From Proteopedia

Revision as of 16:11, 10 September 2015

CRYSTAL STRUCTURE OF HUMAN GLUTATHIONE S-TRANSFERASE P1-1[V104] COMPLEXED WITH S-HEXYLGLUTATHIONE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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