4eiq
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
| - | [[ | + | ==Chromopyrrolic acid-soaked RebC-10x with bound 7-carboxy-K252c== |
| + | <StructureSection load='4eiq' size='340' side='right' caption='[[4eiq]], [[Resolution|resolution]] 2.76Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4eiq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Lechevalieria_aerocolonigenes Lechevalieria aerocolonigenes]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EIQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EIQ FirstGlance]. <br> | ||
| + | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=KCT:(5S)-7-OXO-6,7,12,13-TETRAHYDRO-5H-INDOLO[2,3-A]PYRROLO[3,4-C]CARBAZOLE-5-CARBOXYLIC+ACID'>KCT</scene><br> | ||
| + | <tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2r0g|2r0g]], [[4eip|4eip]]</td></tr> | ||
| + | <tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rbmD, rebC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=68170 Lechevalieria aerocolonigenes])</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=4eiq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eiq OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4eiq RCSB], [http://www.ebi.ac.uk/pdbsum/4eiq PDBsum]</span></td></tr> | ||
| + | <table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The indolocarbazole biosynthetic enzymes StaC, InkE, RebC, and AtmC mediate the degree of oxidation of chromopyrrolic acid on route to the natural products staurosporine, K252a, rebeccamycin, and AT2433-A1, respectively. Here, we show that StaC and InkE, which mediate a net 4-electron oxidation, bind FAD with a micromolar K(d), whereas RebC and AtmC, which mediate a net 8-electron oxidation, bind FAD with a nanomolar K(d) while displaying the same FAD redox properties. We further create RebC-10x, a RebC protein with ten StaC-like amino acid substitutions outside of previously characterized FAD-binding motifs and the complementary StaC-10x. We find that these mutations mediate both FAD affinity and product specificity, with RebC-10x displaying higher StaC activity than StaC itself. X-ray structures of this StaC catalyst identify the substrate of StaC as 7-carboxy-K252c and suggest a unique mechanism for this FAD-dependent enzyme. | ||
| - | + | An Unusual Role for a Mobile Flavin in StaC-like Indolocarbazole Biosynthetic Enzymes.,Goldman PJ, Ryan KS, Hamill MJ, Howard-Jones AR, Walsh CT, Elliott SJ, Drennan CL Chem Biol. 2012 Jul 27;19(7):855-65. PMID:22840773<ref>PMID:22840773</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | + | __TOC__ | |
| - | + | </StructureSection> | |
| - | + | ||
| - | == | + | |
| - | < | + | |
[[Category: Lechevalieria aerocolonigenes]] | [[Category: Lechevalieria aerocolonigenes]] | ||
[[Category: Drennan, C L.]] | [[Category: Drennan, C L.]] | ||
Revision as of 09:11, 11 June 2014
Chromopyrrolic acid-soaked RebC-10x with bound 7-carboxy-K252c
| |||||||||||
