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4jna
From Proteopedia
(Difference between revisions)
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| - | + | ==Crystal structure of the DepH complex with dimethyl-FK228== | |
| - | + | <StructureSection load='4jna' size='340' side='right' caption='[[4jna]], [[Resolution|resolution]] 2.00Å' scene=''> | |
| - | + | == Structural highlights == | |
| + | <table><tr><td colspan='2'>[[4jna]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/"chromobacterium_janthinum"_(zopf)_ford_1927 "chromobacterium janthinum" (zopf) ford 1927]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JNA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4JNA FirstGlance]. <br> | ||
| + | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene><br> | ||
| + | <tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=060:S-METHYL-D-CYSTEINE'>060</scene>, <scene name='pdbligand=1KC:(3S)-7-METHYLSULFANYL-3-OXIDANYL-HEPT-4-ENOIC+ACID'>1KC</scene>, <scene name='pdbligand=DBU:(2Z)-2-AMINOBUT-2-ENOIC+ACID'>DBU</scene>, <scene name='pdbligand=DVA:D-VALINE'>DVA</scene></td></tr> | ||
| + | <tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4jn9|4jn9]]</td></tr> | ||
| + | <tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">depH ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=536 "Chromobacterium janthinum" (Zopf) Ford 1927])</td></tr> | ||
| + | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4jna FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4jna OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4jna RCSB], [http://www.ebi.ac.uk/pdbsum/4jna PDBsum]</span></td></tr> | ||
| + | <table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The disulfide bond is unusual in natural products and critical for thermal stability, cell permeability and bioactivity. DepH from Chromobacterium violaceum No. 968 is an FAD-dependent enzyme responsible for catalyzing the disulfide bond formation of FK228, an anticancer prodrug approved for the treatment of cutaneous T-cell lymphoma. Here we report the crystal structures of DepH and DepH complexed with a substrate analogue S,S'-dimethyl FK228 at 1.82 A and 2.00 A, respectively. Structural and biochemical analyses revealed that DepH, in contrast to the well characterized low molecular weight thioredoxin reductases (LMW TrxRs), is an NADP(+)-independent dithiol oxidase. DepH not only lacks a conserved GGGDXAXE motif necessary for NADP(+) binding in the canonical LMW TrxRs, but also contains a 11-residue sequence which physically impedes the binding of NADP(+). These observations explain the difference between NADP(+)-independent small molecule dithiol oxidases and NADP(+)-dependent thioredoxin reductases and provide insights for understanding the catalytic mechanism of dithiol oxidases involved in natural product biosynthesis. | ||
| - | + | The structural basis of an NADP(+)-independent dithiol oxidase in FK228 biosynthesis.,Li J, Wang C, Zhang ZM, Cheng YQ, Zhou J Sci Rep. 2014 Feb 20;4:4145. doi: 10.1038/srep04145. PMID:24553401<ref>PMID:24553401</ref> | |
| - | + | ||
| - | == | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> |
| - | + | </div> | |
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Cheng, E.]] | [[Category: Cheng, E.]] | ||
[[Category: Li, J.]] | [[Category: Li, J.]] | ||
Revision as of 12:09, 18 May 2014
Crystal structure of the DepH complex with dimethyl-FK228
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