1zo4: Difference between revisions
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<StructureSection load='1zo4' size='340' side='right' caption='[[1zo4]], [[Resolution|resolution]] 1.46Å' scene=''> | <StructureSection load='1zo4' size='340' side='right' caption='[[1zo4]], [[Resolution|resolution]] 1.46Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1zo4]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[1zo4]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_14581 Atcc 14581]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZO4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZO4 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1jpz|1jpz]], [[2hpd|2hpd]], [[1bu7|1bu7]], [[1zo9|1zo9]], [[1zoa|1zoa]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1jpz|1jpz]], [[2hpd|2hpd]], [[1bu7|1bu7]], [[1zo9|1zo9]], [[1zoa|1zoa]]</td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CYP102A1, cyp102 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1404 | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CYP102A1, cyp102 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1404 ATCC 14581])</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Unspecific_monooxygenase Unspecific monooxygenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.14.1 1.14.14.1] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Unspecific_monooxygenase Unspecific monooxygenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.14.1 1.14.14.1] </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=1zo4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zo4 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1zo4 RCSB], [http://www.ebi.ac.uk/pdbsum/1zo4 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=1zo4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zo4 OCA], [http://pdbe.org/1zo4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zo4 RCSB], [http://www.ebi.ac.uk/pdbsum/1zo4 PDBsum]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 1zo4" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Atcc 14581]] | ||
[[Category: Unspecific monooxygenase]] | [[Category: Unspecific monooxygenase]] | ||
[[Category: Bondlela, M]] | [[Category: Bondlela, M]] | ||
Revision as of 14:32, 10 September 2015
Crystal Structure Of A328S Mutant Of The Heme Domain Of P450BM-3Crystal Structure Of A328S Mutant Of The Heme Domain Of P450BM-3
Structural highlights
Function[CPXB_BACME] Functions as a fatty acid monooxygenase. Catalyzes hydroxylation of medium and long-chain fatty acids at omega-1, omega-2 and omega-3 positions, with optimum chain lengths of 12-16 carbons (lauric, myristic, and palmitic acids). The reductase domain is required for electron transfer from NADP to cytochrome P450. 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 PubMedIdentifying key structural features of cytochromes P450 is critical in understanding the catalytic mechanism of these important drug-metabolizing enzymes. Cytochrome P450BM-3 (BM-3), a structural and mechanistic P450 model, catalyzes the regio- and stereoselective hydroxylation of fatty acids. Recent work has demonstrated the importance of water in the mechanism of BM-3, and site-specific mutagenesis has helped to elucidate mechanisms of substrate recognition, binding, and product formation. One of the amino acids identified as playing a key role in the active site of BM-3 is alanine 328, which is located in the loop between the K helix and beta 1-4. In the A328V BM-3 mutant, substrate affinity increases 5-10-fold and the turnover number increases 2-8-fold compared to wild-type enzyme. Unlike wild-type enzyme, this mutant is purified from E. coli with endogenous substrate bound due to the higher binding affinity. Close examination of the crystal structures of the substrate-bound native and A328V mutant BMPs indicates that the positioning of the substrate is essentially identical in the two forms of the enzyme, with the two valine methyl groups occupying voids present in the active site of the wild-type substrate-bound structure. A single active-site mutation of P450BM-3 dramatically enhances substrate binding and rate of product formation.,Haines DC, Hegde A, Chen B, Zhao W, Bondlela M, Humphreys JM, Mullin DA, Tomchick DR, Machius M, Peterson JA Biochemistry. 2011 Oct 4;50(39):8333-41. Epub 2011 Sep 6. PMID:21875028[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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