3fhy
From Proteopedia
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| - | [[ | + | ==Crystal structure of D235N mutant of human pyridoxal kinase== |
| + | <StructureSection load='3fhy' size='340' side='right' caption='[[3fhy]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3fhy]] is a 2 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=3FHY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3FHY FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | ||
| + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3fhx|3fhx]]</td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">C21orf124, C21orf97, PDXK, PKH, PNK ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Pyridoxal_kinase Pyridoxal kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.35 2.7.1.35] </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=3fhy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fhy OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3fhy RCSB], [http://www.ebi.ac.uk/pdbsum/3fhy PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Pyridoxal kinase catalyzes the phosphorylation of pyridoxal (PL) to pyridoxal 5'-phosphate (PLP). A D235A variant shows 7-fold and 15-fold decreases in substrate affinity and activity, respectively. A D235N variant shows approximately 2-fold decrease in both PL affinity and activity. The crystal structure of D235A (2.5 A) shows bound ATP, PL and PLP, while D235N (2.3 A) shows bound ATP and sulfate. These results document the role of Asp235 in PL kinase activity. The observation that the active site of PL kinase can accommodate both ATP and PLP suggests that formation of a ternary Enz.PLP.ATP complex could occur in the wild-type enzyme, consistent with severe MgATP substrate inhibition of PL kinase in the presence of PLP. | ||
| - | + | Kinetic and structural studies of the role of the active site residue Asp235 of human pyridoxal kinase.,Gandhi AK, Ghatge MS, Musayev FN, Sease A, Aboagye SO, di Salvo ML, Schirch V, Safo MK Biochem Biophys Res Commun. 2009 Mar 27;381(1):12-5. Epub 2009 Feb 4. PMID:19351586<ref>PMID:19351586</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| - | + | ==See Also== | |
| - | + | *[[Pyridoxal kinase|Pyridoxal kinase]] | |
| - | == | + | == References == |
| - | [[ | + | <references/> |
| - | + | __TOC__ | |
| - | == | + | </StructureSection> |
| - | < | + | |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Pyridoxal kinase]] | [[Category: Pyridoxal kinase]] | ||
| - | [[Category: Gandhi, A K | + | [[Category: Gandhi, A K]] |
| - | [[Category: Ghatge, M | + | [[Category: Ghatge, M]] |
| - | [[Category: Musayev, F N | + | [[Category: Musayev, F N]] |
| - | [[Category: Safo, M K | + | [[Category: Safo, M K]] |
| - | [[Category: Salvo, M L.Di | + | [[Category: Salvo, M L.Di]] |
| - | [[Category: Schirch, V | + | [[Category: Schirch, V]] |
[[Category: Atp complex]] | [[Category: Atp complex]] | ||
[[Category: Atp-binding]] | [[Category: Atp-binding]] | ||
Revision as of 08:56, 26 November 2014
Crystal structure of D235N mutant of human pyridoxal kinase
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