4zvj
From Proteopedia
(Difference between revisions)
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Triose-phosphate_isomerase Triose-phosphate isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.3.1.1 5.3.1.1] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Triose-phosphate_isomerase Triose-phosphate isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.3.1.1 5.3.1.1] </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=4zvj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4zvj OCA], [http://pdbe.org/4zvj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4zvj RCSB], [http://www.ebi.ac.uk/pdbsum/4zvj 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=4zvj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4zvj OCA], [http://pdbe.org/4zvj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4zvj RCSB], [http://www.ebi.ac.uk/pdbsum/4zvj PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4zvj ProSAT]</span></td></tr> |
</table> | </table> | ||
== Disease == | == Disease == | ||
[[http://www.uniprot.org/uniprot/TPIS_HUMAN TPIS_HUMAN]] Defects in TPI1 are the cause of triosephosphate isomerase deficiency (TPI deficiency) [MIM:[http://omim.org/entry/190450 190450]]. TPI deficiency is an autosomal recessive disorder. It is the most severe clinical disorder of glycolysis. It is associated with neonatal jaundice, chronic hemolytic anemia, progressive neuromuscular dysfunction, cardiomyopathy and increased susceptibility to infection. | [[http://www.uniprot.org/uniprot/TPIS_HUMAN TPIS_HUMAN]] Defects in TPI1 are the cause of triosephosphate isomerase deficiency (TPI deficiency) [MIM:[http://omim.org/entry/190450 190450]]. TPI deficiency is an autosomal recessive disorder. It is the most severe clinical disorder of glycolysis. It is associated with neonatal jaundice, chronic hemolytic anemia, progressive neuromuscular dysfunction, cardiomyopathy and increased susceptibility to infection. | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Triosephosphate isomerase (TPI) is a glycolytic enzyme which homodimerizes for full catalytic activity. Mutations of the TPI gene elicit a disease known as TPI Deficiency, a glycolytic enzymopathy noted for its unique severity of neurological symptoms. Evidence suggests that TPI Deficiency pathogenesis may be due to conformational changes of the protein, likely affecting dimerization and protein stability. In this report, we genetically and physically characterize a human disease-associated TPI mutation caused by an I170V substitution. Human TPI(I170V) elicits behavioral abnormalities in Drosophila. An examination of hTPI(I170V) enzyme kinetics revealed this substitution reduced catalytic turnover, while assessments of thermal stability demonstrated an increase in enzyme stability. The crystal structure of the homodimeric I170V mutant reveals changes in the geometry of critical residues within the catalytic pocket. Collectively these data reveal new observations of the structural and kinetic determinants of TPI Deficiency pathology, providing new insights into disease pathogenesis. | ||
| + | |||
| + | Triosephosphate isomerase I170V alters catalytic site, enhances stability and induces pathology in a Drosophila model of TPI deficiency.,Roland BP, Amrich CG, Kammerer CJ, Stuchul KA, Larsen SB, Rode S, Aslam AA, Heroux A, Wetzel R, VanDemark AP, Palladino MJ Biochim Biophys Acta. 2015 Jan;1852(1):61-9. doi: 10.1016/j.bbadis.2014.10.010., Epub 2014 Oct 16. PMID:25463631<ref>PMID:25463631</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 4zvj" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Revision as of 07:39, 18 January 2017
Structure of human triose phosphate isomerase K13M
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