2vgg

From Proteopedia

(Difference between revisions)

Revision as of 07:39, 8 March 2023

HUMAN ERYTHROCYTE PYRUVATE KINASE: R479H MUTANT

Structural highlights

2vgg is a 4 chain structure with sequence from Homo sapiens. This structure supersedes the now removed PDB entry 1liy. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
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/2vgg"

@@ Line 3: / Line 3: @@
 <StructureSection load='2vgg' size='340' side='right'caption='[[2vgg]], [[Resolution|resolution]] 2.74&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2vgg]] 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=1liy 1liy]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VGG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VGG FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2vgg]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1liy 1liy]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VGG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VGG FirstGlance]. <br>
 </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"><div style='overflow: auto; max-height: 3em;'>[[2vgb|2vgb]], [[2vgf|2vgf]]</div></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'>[https://proteopedia.org/fgij/fg.htm?mol=2vgg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vgg OCA], [https://pdbe.org/2vgg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vgg RCSB], [https://www.ebi.ac.uk/pdbsum/2vgg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vgg ProSAT]</span></td></tr>
 </table>
 == Disease ==
-[[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.
+[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 ==
-[[https://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 39: / Line 37: @@
 __TOC__
 </StructureSection>
-[[Category: Human]]
+[[Category: Homo sapiens]]
 [[Category: Large Structures]]
-[[Category: Pyruvate kinase]]
+[[Category: Abraham DJ]]
-[[Category: Abraham, D J]]
+[[Category: Bianchi P]]
-[[Category: Bianchi, P]]
+[[Category: Chiarelli LR]]
-[[Category: Chiarelli, L R]]
+[[Category: Dolzan M]]
-[[Category: Dolzan, M]]
+[[Category: Fortin R]]
-[[Category: Fortin, R]]
+[[Category: Galizzi A]]
-[[Category: Galizzi, A]]
+[[Category: Mattevi A]]
-[[Category: Mattevi, A]]
+[[Category: Valentini G]]
-[[Category: Valentini, G]]
+[[Category: Wang C]]
-[[Category: Wang, C]]
+[[Category: Zanella A]]
-[[Category: Zanella, A]]
-[[Category: Disease mutation]]
-[[Category: Glycolysis]]
-[[Category: Kinase]]
-[[Category: Magnesium]]
-[[Category: Metal-binding]]
-[[Category: Phosphorylation]]
-[[Category: Pyruvate]]
-[[Category: Pyruvate kinase in the active r-state]]
-[[Category: Transferase]]

2vgg

From Proteopedia

Revision as of 07:39, 8 March 2023

HUMAN ERYTHROCYTE PYRUVATE KINASE: R479H MUTANT

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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