1e9c: Difference between revisions
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==Mutant human thymidylate kinase complexed with TMP and APPNP== | ==Mutant human thymidylate kinase complexed with TMP and APPNP== | ||
<StructureSection load='1e9c' size='340' side='right' caption='[[1e9c]], [[Resolution|resolution]] 1.60Å' scene=''> | <StructureSection load='1e9c' size='340' side='right' caption='[[1e9c]], [[Resolution|resolution]] 1.60Å' scene=''> | ||
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1e2d|1e2d]], [[1e2e|1e2e]], [[1e2f|1e2f]], [[1e2g|1e2g]], [[1e2q|1e2q]], [[1e98|1e98]], [[1e99|1e99]], [[1e9a|1e9a]], [[1e9b|1e9b]], [[1e9d|1e9d]], [[1e9e|1e9e]], [[1e9f|1e9f]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1e2d|1e2d]], [[1e2e|1e2e]], [[1e2f|1e2f]], [[1e2g|1e2g]], [[1e2q|1e2q]], [[1e98|1e98]], [[1e99|1e99]], [[1e9a|1e9a]], [[1e9b|1e9b]], [[1e9d|1e9d]], [[1e9e|1e9e]], [[1e9f|1e9f]]</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/dTMP_kinase dTMP kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.4.9 2.7.4.9] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/dTMP_kinase dTMP kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.4.9 2.7.4.9] </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=1e9c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e9c OCA], [http://pdbe.org/1e9c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1e9c RCSB], [http://www.ebi.ac.uk/pdbsum/1e9c 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=1e9c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e9c OCA], [http://pdbe.org/1e9c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1e9c RCSB], [http://www.ebi.ac.uk/pdbsum/1e9c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1e9c ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/e9/1e9c_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/e9/1e9c_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 1e9c" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 1e9c" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 11:04, 13 December 2017
Mutant human thymidylate kinase complexed with TMP and APPNPMutant human thymidylate kinase complexed with TMP and APPNP
Structural highlights
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 PubMedThe 60-fold reduced phosphorylation rate of azidothymidine (AZT) monophosphate (AZTMP), the partially activated AZT metabolite, by human thymidylate kinase (TMPK) severely limits the efficacy of this anti-HIV prodrug. Crystal structures of different TMPK nucleotide complexes indicate that steric hindrance by the azido group of AZTMP prevents formation of the catalytically active closed conformation of the P-loop of TMPK. The F105Y mutant and a chimeric mutant that contains sequences of the human and Escherichia coli enzyme phosphorylate AZTMP 20-fold faster than the wild-type enzyme. The structural basis of the increased activity is assigned to stabilization of the closed P-loop conformation. Potentiating AZT activation: structures of wild-type and mutant human thymidylate kinase suggest reasons for the mutants' improved kinetics with the HIV prodrug metabolite AZTMP.,Ostermann N, Lavie A, Padiyar S, Brundiers R, Veit T, Reinstein J, Goody RS, Konrad M, Schlichting I J Mol Biol. 2000 Nov 17;304(1):43-53. PMID:11071809[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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