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1zs9

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Revision as of 08:51, 2 May 2018

Crystal structure of human enolase-phosphatase E1

Structural highlights

1zs9 is a 1 chain structure with sequence from Human. This structure supersedes the now removed PDB entry 1wdh. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
NonStd Res:
Related:	1yns
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ENOPH_HUMAN] Bifunctional enzyme that catalyzes the enolization of 2,3-diketo-5-methylthiopentyl-1-phosphate (DK-MTP-1-P) into the intermediate 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate (HK-MTPenyl-1-P), which is then dephosphorylated to form the acireductone 1,2-dihydroxy-3-keto-5-methylthiopentene (DHK-MTPene).^[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

Enolase-phosphatase E1 (MASA) is a bifunctional enzyme in the ubiquitous methionine salvage pathway that catalyzes the continuous reactions of 2,3-diketo-5-methylthio-1-phosphopentane to yield the aci-reductone metabolite using Mg2+ as cofactor. In this study, we have determined the crystal structure of MASA and its complex with a substrate analog to 1.7A resolution by multi-wavelength anomalous diffraction and molecular replacement techniques, respectively. The structures support the proposed mechanism of phosphatase activity and further suggest the probable mechanism of enolization. We establish a model for substrate binding to describe in detail the enzymatic reaction and the formation of the transition state, which will provide insight into the reaction mechanisms of other enzymes in the same family.

Crystal structure of human E1 enzyme and its complex with a substrate analog reveals the mechanism of its phosphatase/enolase activity.,Wang H, Pang H, Bartlam M, Rao Z J Mol Biol. 2005 May 13;348(4):917-26. PMID:15843022^[2]

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

References

↑ Wang H, Pang H, Bartlam M, Rao Z. Crystal structure of human E1 enzyme and its complex with a substrate analog reveals the mechanism of its phosphatase/enolase activity. J Mol Biol. 2005 May 13;348(4):917-26. PMID:15843022 doi:10.1016/j.jmb.2005.01.072
↑ Wang H, Pang H, Bartlam M, Rao Z. Crystal structure of human E1 enzyme and its complex with a substrate analog reveals the mechanism of its phosphatase/enolase activity. J Mol Biol. 2005 May 13;348(4):917-26. PMID:15843022 doi:10.1016/j.jmb.2005.01.072

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1zs9"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human enolase-phosphatase E1==
 <StructureSection load='1zs9' size='340' side='right' caption='[[1zs9]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1yns|1yns]]</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=1zs9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zs9 OCA], [http://pdbe.org/1zs9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zs9 RCSB], [http://www.ebi.ac.uk/pdbsum/1zs9 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=1zs9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zs9 OCA], [http://pdbe.org/1zs9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zs9 RCSB], [http://www.ebi.ac.uk/pdbsum/1zs9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1zs9 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zs/1zs9_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zs/1zs9_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1zs9

From Proteopedia

Revision as of 08:51, 2 May 2018

Crystal structure of human enolase-phosphatase E1

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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