This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

2vgb

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 10:45, 7 July 2021

HUMAN ERYTHROCYTE PYRUVATE KINASE

Structural highlights

2vgb is a 4 chain structure with sequence from Human. This structure supersedes the now removed PDB entry 1liu. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	1liy, 1liu, 1liw, 1lix
Activity:	Pyruvate kinase, with EC number 2.7.1.40
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[KPYR_HUMAN] Defects in PKLR are the cause of pyruvate kinase hyperactivity (PKHYP) [MIM:102900]; also known as high red cell ATP syndrome. This autosomal dominant phenotype is characterized by increase of red blood cell ATP.^[1] Defects in PKLR are the cause of pyruvate kinase deficiency of red cells (PKRD) [MIM:266200]. A frequent cause of hereditary non-spherocytic hemolytic anemia. Clinically, pyruvate kinase-deficient patients suffer from a highly variable degree of chronic hemolysis, ranging from severe neonatal jaundice and fatal anemia at birth, severe transfusion-dependent chronic hemolysis, moderate hemolysis with exacerbation during infection, to a fully compensated hemolysis without apparent anemia.

Function

[KPYR_HUMAN] Plays a key role in glycolysis (By similarity).

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

Deficiency of human erythrocyte isozyme (RPK) is, together with glucose-6-phosphate dehydrogenase deficiency, the most common cause of the nonspherocytic hemolytic anemia. To provide a molecular framework to the disease, we have solved the 2.7 A resolution crystal structure of human RPK in complex with fructose 1,6-bisphosphate, the allosteric activator, and phosphoglycolate, a substrate analogue, and we have functionally and structurally characterized eight mutants (G332S, G364D, T384M, D390N, R479H, R486W, R504L, and R532W) found in RPK-deficient patients. The mutations target distinct regions of RPK structure, including domain interfaces and catalytic and allosteric sites. The mutations affect to a different extent thermostability, catalytic efficiency, and regulatory properties. These studies are the first to correlate the clinical symptoms with the molecular properties of the mutant enzymes. Mutations greatly impairing thermostability and/or activity are associated with severe anemia. Some mutant proteins exhibit moderate changes in the kinetic parameters, which are sufficient to cause mild to severe anemia, underlining the crucial role of RPK for erythrocyte metabolism. Prediction of the effects of mutations is difficult because there is no relation between the nature and location of the replaced amino acid and the type of molecular perturbation. Characterization of mutant proteins may serve as a valuable tool to assist with diagnosis and genetic counseling.

Structure and function of human erythrocyte pyruvate kinase. Molecular basis of nonspherocytic hemolytic anemia.,Valentini G, Chiarelli LR, Fortin R, Dolzan M, Galizzi A, Abraham DJ, Wang C, Bianchi P, Zanella A, Mattevi A J Biol Chem. 2002 Jun 28;277(26):23807-14. Epub 2002 Apr 17. PMID:11960989^[2]

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

References

↑ Beutler E, Westwood B, van Zwieten R, Roos D. G-->T transition at cDNA nt 110 (K37Q) in the PKLR (pyruvate kinase) gene is the molecular basis of a case of hereditary increase of red blood cell ATP. Hum Mutat. 1997;9(3):282-5. PMID:9090535 doi:<282::AID-HUMU13>3.0.CO;2-Z 10.1002/(SICI)1098-1004(1997)9:3<282::AID-HUMU13>3.0.CO;2-Z
↑ Valentini G, Chiarelli LR, Fortin R, Dolzan M, Galizzi A, Abraham DJ, Wang C, Bianchi P, Zanella A, Mattevi A. Structure and function of human erythrocyte pyruvate kinase. Molecular basis of nonspherocytic hemolytic anemia. J Biol Chem. 2002 Jun 28;277(26):23807-14. Epub 2002 Apr 17. PMID:11960989 doi:10.1074/jbc.M202107200

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2vgb"

@@ Line 3: / Line 3: @@
 <StructureSection load='2vgb' size='340' side='right'caption='[[2vgb]], [[Resolution|resolution]] 2.73&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2vgb]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1liu 1liu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VGB OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2VGB FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2vgb]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1liu 1liu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VGB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VGB FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FBP:BETA-FRUCTOSE-1,6-DIPHOSPHATE'>FBP</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=PGA:2-PHOSPHOGLYCOLIC+ACID'>PGA</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FBP:BETA-FRUCTOSE-1,6-DIPHOSPHATE'>FBP</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=PGA:2-PHOSPHOGLYCOLIC+ACID'>PGA</scene></td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1liy|1liy]], [[1liu|1liu]], [[1liw|1liw]], [[1lix|1lix]]</td></tr>
+<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1liy|1liy]], [[1liu|1liu]], [[1liw|1liw]], [[1lix|1lix]]</div></td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Pyruvate_kinase Pyruvate kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.40 2.7.1.40] </span></td></tr>
+<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Pyruvate_kinase Pyruvate kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.40 2.7.1.40] </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=2vgb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vgb OCA], [http://pdbe.org/2vgb PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2vgb RCSB], [http://www.ebi.ac.uk/pdbsum/2vgb PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2vgb 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=2vgb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vgb OCA], [https://pdbe.org/2vgb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vgb RCSB], [https://www.ebi.ac.uk/pdbsum/2vgb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vgb ProSAT]</span></td></tr>
 </table>
 == Disease ==
-[[http://www.uniprot.org/uniprot/KPYR_HUMAN KPYR_HUMAN]] Defects in PKLR are the cause of pyruvate kinase hyperactivity (PKHYP) [MIM:[http://omim.org/entry/102900 102900]]; also known as high red cell ATP syndrome. This autosomal dominant phenotype is characterized by increase of red blood cell ATP.<ref>PMID:9090535</ref>   Defects in PKLR are the cause of pyruvate kinase deficiency of red cells (PKRD) [MIM:[http://omim.org/entry/266200 266200]]. A frequent cause of hereditary non-spherocytic hemolytic anemia. Clinically, pyruvate kinase-deficient patients suffer from a highly variable degree of chronic hemolysis, ranging from severe neonatal jaundice and fatal anemia at birth, severe transfusion-dependent chronic hemolysis, moderate hemolysis with exacerbation during infection, to a fully compensated hemolysis without apparent anemia.
+[[https://www.uniprot.org/uniprot/KPYR_HUMAN KPYR_HUMAN]] Defects in PKLR are the cause of pyruvate kinase hyperactivity (PKHYP) [MIM:[https://omim.org/entry/102900 102900]]; also known as high red cell ATP syndrome. This autosomal dominant phenotype is characterized by increase of red blood cell ATP.<ref>PMID:9090535</ref>   Defects in PKLR are the cause of pyruvate kinase deficiency of red cells (PKRD) [MIM:[https://omim.org/entry/266200 266200]]. A frequent cause of hereditary non-spherocytic hemolytic anemia. Clinically, pyruvate kinase-deficient patients suffer from a highly variable degree of chronic hemolysis, ranging from severe neonatal jaundice and fatal anemia at birth, severe transfusion-dependent chronic hemolysis, moderate hemolysis with exacerbation during infection, to a fully compensated hemolysis without apparent anemia.
 == Function ==
-[[http://www.uniprot.org/uniprot/KPYR_HUMAN KPYR_HUMAN]] Plays a key role in glycolysis (By similarity).
+[[https://www.uniprot.org/uniprot/KPYR_HUMAN KPYR_HUMAN]] Plays a key role in glycolysis (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 35: / Line 35: @@
 ==See Also==
 *[[Pyruvate Kinase|Pyruvate Kinase]]
+*[[Pyruvate kinase 3D structures|Pyruvate kinase 3D structures]]
 == References ==
 <references/>

2vgb

From Proteopedia

Revision as of 10:45, 7 July 2021

HUMAN ERYTHROCYTE PYRUVATE KINASE

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox