2xe6

From Proteopedia

(Difference between revisions)

Revision as of 15:11, 5 August 2016

THE COMPLETE REACTION CYCLE OF HUMAN PHOSPHOGLYCERATE KINASE: THE OPEN BINARY COMPLEX WITH 3PG

Structural highlights

2xe6 is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	2x15, 2wzd, 2x14, 2x13, 2wzb, 2wzc, 2xe7, 2xe8
Activity:	Phosphoglycerate kinase, with EC number 2.7.2.3
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[PGK1_HUMAN] Defects in PGK1 are the cause of phosphoglycerate kinase 1 deficiency (PGK1D) [MIM:300653]. It is a condition with a highly variable clinical phenotype that includes hemolytic anemia, rhabdomyolysis, myopathy and neurologic involvement. Patients can express one or more of these manifestations.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7] ^[8] ^[9]

Function

[PGK1_HUMAN] In addition to its role as a glycolytic enzyme, it seems that PGK-1 acts as a polymerase alpha cofactor protein (primer recognition protein).

Publication Abstract from PubMed

Phosphoglycerate kinase (PGK) is the enzyme responsible for the first ATP-generating step of glycolysis and has been implicated extensively in oncogenesis and its development. Solution small angle x-ray scattering (SAXS) data, in combination with crystal structures of the enzyme in complex with substrate and product analogues, reveal a new conformation for the resting state of the enzyme and demonstrate the role of substrate binding in the preparation of the enzyme for domain closure. Comparison of the x-ray scattering curves of the enzyme in different states with crystal structures has allowed the complete reaction cycle to be resolved both structurally and temporally. The enzyme appears to spend most of its time in a fully open conformation with short periods of closure and catalysis, thereby allowing the rapid diffusion of substrates and products in and out of the binding sites. Analysis of the open apoenzyme structure, defined through deformable elastic network refinement against the SAXS data, suggests that interactions in a mostly buried hydrophobic region may favor the open conformation. This patch is exposed on domain closure, making the open conformation more thermodynamically stable. Ionic interactions act to maintain the closed conformation to allow catalysis. The short time PGK spends in the closed conformation and its strong tendency to rest in an open conformation imply a spring-loaded release mechanism to regulate domain movement, catalysis, and efficient product release.

A Spring-loaded Release Mechanism Regulates Domain Movement and Catalysis in Phosphoglycerate Kinase.,Zerrad L, Merli A, Schroder GF, Varga A, Graczer E, Pernot P, Round A, Vas M, Bowler MW J Biol Chem. 2011 Apr 22;286(16):14040-8. Epub 2011 Feb 24. PMID:21349853^[10]

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

References

↑ Yoshida A, Twele TW, Dave V, Beutler E. Molecular abnormality of a phosphoglycerate kinase variant (PGK-Alabama). Blood Cells Mol Dis. 1995;21(3):179-81. PMID:8673469 doi:S1079-9796(85)70020-4
↑ Cohen-Solal M, Valentin C, Plassa F, Guillemin G, Danze F, Jaisson F, Rosa R. Identification of new mutations in two phosphoglycerate kinase (PGK) variants expressing different clinical syndromes: PGK Creteil and PGK Amiens. Blood. 1994 Aug 1;84(3):898-903. PMID:8043870
↑ Ookawara T, Dave V, Willems P, Martin JJ, de Barsy T, Matthys E, Yoshida A. Retarded and aberrant splicings caused by single exon mutation in a phosphoglycerate kinase variant. Arch Biochem Biophys. 1996 Mar 1;327(1):35-40. PMID:8615693 doi:http://dx.doi.org/10.1006/abbi.1996.0089
↑ Valentin C, Birgens H, Craescu CT, Brodum-Nielsen K, Cohen-Solal M. A phosphoglycerate kinase mutant (PGK Herlev; D285V) in a Danish patient with isolated chronic hemolytic anemia: mechanism of mutation and structure-function relationships. Hum Mutat. 1998;12(4):280-7. PMID:9744480 doi:<280::AID-HUMU10>3.0.CO;2-V 10.1002/(SICI)1098-1004(1998)12:4<280::AID-HUMU10>3.0.CO;2-V
↑ Maeda M, Yoshida A. Molecular defect of a phosphoglycerate kinase variant (PGK-Matsue) associated with hemolytic anemia: Leu----Pro substitution caused by T/A----C/G transition in exon 3. Blood. 1991 Mar 15;77(6):1348-52. PMID:2001457
↑ Maeda M, Bawle EV, Kulkarni R, Beutler E, Yoshida A. Molecular abnormalities of a phosphoglycerate kinase variant generated by spontaneous mutation. Blood. 1992 May 15;79(10):2759-62. PMID:1586722
↑ Fujii H, Kanno H, Hirono A, Shiomura T, Miwa S. A single amino acid substitution (157 Gly----Val) in a phosphoglycerate kinase variant (PGK Shizuoka) associated with chronic hemolysis and myoglobinuria. Blood. 1992 Mar 15;79(6):1582-5. PMID:1547346
↑ Fujii H, Chen SH, Akatsuka J, Miwa S, Yoshida A. Use of cultured lymphoblastoid cells for the study of abnormal enzymes: molecular abnormality of a phosphoglycerate kinase variant associated with hemolytic anemia. Proc Natl Acad Sci U S A. 1981 Apr;78(4):2587-90. PMID:6941312
↑ Fujii H, Yoshida A. Molecular abnormality of phosphoglycerate kinase-Uppsala associated with chronic nonspherocytic hemolytic anemia. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5461-5. PMID:6933565
↑ Zerrad L, Merli A, Schroder GF, Varga A, Graczer E, Pernot P, Round A, Vas M, Bowler MW. A Spring-loaded Release Mechanism Regulates Domain Movement and Catalysis in Phosphoglycerate Kinase. J Biol Chem. 2011 Apr 22;286(16):14040-8. Epub 2011 Feb 24. PMID:21349853 doi:10.1074/jbc.M110.206813

1 Structural highlights
2 Disease
3 Function
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/2xe6"

@@ Line 1: / Line 1: @@
 ==THE COMPLETE REACTION CYCLE OF HUMAN PHOSPHOGLYCERATE KINASE: THE OPEN BINARY COMPLEX WITH 3PG==
 <StructureSection load='2xe6' size='340' side='right' caption='[[2xe6]], [[Resolution|resolution]] 1.74&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2xe6]] is a 1 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=2XE6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2XE6 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2xe6]] is a 1 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=2XE6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2XE6 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=3PG:3-PHOSPHOGLYCERIC+ACID'>3PG</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2x15|2x15]], [[2wzd|2wzd]], [[2x14|2x14]], [[2x13|2x13]], [[2wzb|2wzb]], [[2wzc|2wzc]], [[2xe7|2xe7]], [[2xe8|2xe8]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phosphoglycerate_kinase Phosphoglycerate kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.2.3 2.7.2.3] </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=2xe6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xe6 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2xe6 RCSB], [http://www.ebi.ac.uk/pdbsum/2xe6 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=2xe6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xe6 OCA], [http://pdbe.org/2xe6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2xe6 RCSB], [http://www.ebi.ac.uk/pdbsum/2xe6 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2xe6 ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 20: / Line 21: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2xe6" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 27: / Line 29: @@
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Phosphoglycerate kinase]]
 [[Category: Baxter, N J]]

2xe6

From Proteopedia

Revision as of 15:11, 5 August 2016

THE COMPLETE REACTION CYCLE OF HUMAN PHOSPHOGLYCERATE KINASE: THE OPEN BINARY COMPLEX WITH 3PG

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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