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4oqa
From Proteopedia
(Difference between revisions)
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| - | ''' | + | ==Structure of Human PARP-1 bound to a DNA double strand break in complex with (2Z)-2-(2,4-dihydroxybenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-7-carboxamide== |
| + | <StructureSection load='4oqa' size='340' side='right' caption='[[4oqa]], [[Resolution|resolution]] 3.65Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4oqa]] is a 6 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OQA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4OQA FirstGlance]. <br> | ||
| + | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=2US:(2Z)-2-(2,4-DIHYDROXYBENZYLIDENE)-3-OXO-2,3-DIHYDRO-1-BENZOFURAN-7-CARBOXAMIDE'>2US</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br> | ||
| + | <tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4dqy|4dqy]], [[4opx|4opx]], [[4oqb|4oqb]]</td></tr> | ||
| + | <tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/NAD(+)_ADP-ribosyltransferase NAD(+) ADP-ribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.30 2.4.2.30] </span></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=4oqa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4oqa OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4oqa RCSB], [http://www.ebi.ac.uk/pdbsum/4oqa PDBsum]</span></td></tr> | ||
| + | <table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Novel substituted 2,3-dihydrobenzofuran-7-carboxamide (DHBF-7-carboxamide) and 2,3-dihydrobenzofuran-3(2H)-one-7-carboxamide (DHBF-3-one-7-carboxamide) derivatives were synthesized and evaluated as inhibitors of poly(ADP-ribose)polymerase-1 (PARP-1). A structure-based design strategy resulted in lead compound 3 (DHBF-7-carboxamide; IC50 = 9.45 muM). To facilitate synthetically feasible derivatives, an alternative core was designed, DHBF-3-one-7-carboxamide (36, IC50 = 16.2 muM). The electrophilic 2-position of this scaffold was accessible for extended modifications. Substituted benzylidene derivatives at the 2-position were found to be the most potent, with 3',4'-dihydroxybenzylidene 58 (IC50 = 0.531 muM) showing a 30-fold improvement in potency. Various heterocycles attached at the 4'-hydroxyl/4'-amino of the benzylidene moiety resulted in significant improvement in inhibition of PARP-1 activity (e.g., compounds 66-68, 70, 72, and 73; IC50 values from 0.718 to 0.079 muM). Compound 66 showed selective cytotoxicity in BRCA2-deficient DT40 cells. Crystal structures of three inhibitors (compounds (-)-13c, 59, and 65) bound to a multidomain PARP-1 structure were obtained, providing insights into further development of these inhibitors. | ||
| - | + | Discovery and Structure-Activity Relationship of Novel 2,3-Dihydrobenzofuran-7-carboxamide and 2,3-Dihydrobenzofuran-3(2H)-one-7-carboxamide Derivatives as Poly(ADP-ribose)polymerase-1 Inhibitors.,Patel MR, Bhatt A, Steffen JD, Chergui A, Murai J, Pommier Y, Pascal JM, Trombetta LD, Fronczek FR, Talele TT J Med Chem. 2014 Jun 25. PMID:24922587<ref>PMID:24922587</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | == References == | |
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: J D., Steffen.]] | ||
| + | [[Category: Pascal, J M.]] | ||
| + | [[Category: Dna binding]] | ||
| + | [[Category: Dna repair]] | ||
| + | [[Category: Parp]] | ||
| + | [[Category: Polymerase]] | ||
| + | [[Category: Transferase-dna-transferase inhibitor complex]] | ||
| + | [[Category: Zinc finger]] | ||
Revision as of 08:33, 2 July 2014
Structure of Human PARP-1 bound to a DNA double strand break in complex with (2Z)-2-(2,4-dihydroxybenzylidene)-3-oxo-2,3-dihydro-1-benzofuran-7-carboxamide
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