5mgk
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 5mgk is ON HOLD until Paper Publication Authors: Lolli, G., Spiliotopoulos, D., Caflisch, A. Description: Crystal Structure of BAZ2A bromodomain in...) |
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal Structure of BAZ2A bromodomain in complex with 4-propionyl-pyrrole derivative 2== | |
| + | <StructureSection load='5mgk' size='340' side='right'caption='[[5mgk]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5mgk]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5MGK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5MGK FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.301Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=7MW:METHYL+4-PROPANOYL-1~{H}-PYRROLE-2-CARBOXYLATE'>7MW</scene></td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5mgk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5mgk OCA], [https://pdbe.org/5mgk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5mgk RCSB], [https://www.ebi.ac.uk/pdbsum/5mgk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5mgk ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/BAZ2A_HUMAN BAZ2A_HUMAN] Essential component of the NoRC (nucleolar remodeling complex) complex, a complex that mediates silencing of a fraction of rDNA by recruiting histone-modifying enzymes and DNA methyltransferases, leading to heterochromatin formation and transcriptional silencing. In the complex, it plays a central role by being recruited to rDNA and by targeting chromatin modifying enzymes such as HDAC1, leading to repress RNA polymerase I transcription. Recruited to rDNA via its interaction with TTF1 and its ability to recognize and bind histone H4 acetylated on 'Lys-16' (H4K16ac), leading to deacetylation of H4K5ac, H4K8ac, H4K12ac but not H4K16ac. Specifically binds pRNAs, 150-250 nucleotide RNAs that are complementary in sequence to the rDNA promoter; pRNA-binding is required for heterochromatin formation and rDNA silencing (By similarity). | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The bromodomain adjacent to zinc finger domain protein 2A (BAZ2A) is implicated in aggressive prostate cancer. The BAZ2A bromodomain is a challenging target because of the shallow pocket of its natural ligand, the acetylated side chain of lysine. Here, we report the successful screening of a library of nearly 1500 small molecules by high-throughput docking and force field-based binding-energy evaluation. For seven of the 20 molecules selected in silico, evidence of binding to the BAZ2A bromodomain is provided by ligand-observed NMR spectroscopy. Two of these compounds show a favorable ligand efficiency of 0.42 kcal/mol per non-hydrogen atom in a competition-binding assay. The crystal structures of the BAZ2A bromodomain in complex with four fragment hits validate the predicted binding modes. The binding modes of compounds 1 and 3 are compatible with ligand growing for optimization of affinity for BAZ2A and selectivity against the close homologue BAZ2B. | ||
| - | + | Discovery of BAZ2A bromodomain ligands.,Spiliotopoulos D, Wamhoff EC, Lolli G, Rademacher C, Caflisch A Eur J Med Chem. 2017 Aug 12;139:564-572. doi: 10.1016/j.ejmech.2017.08.028. PMID:28837921<ref>PMID:28837921</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| - | [[Category: | + | <div class="pdbe-citations 5mgk" style="background-color:#fffaf0;"></div> |
| - | [[Category: | + | |
| - | [[Category: | + | ==See Also== |
| + | *[[Bromodomain adjacent to zinc finger 3D structures|Bromodomain adjacent to zinc finger 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Homo sapiens]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Caflisch A]] | ||
| + | [[Category: Lolli G]] | ||
| + | [[Category: Spiliotopoulos D]] | ||
Current revision
Crystal Structure of BAZ2A bromodomain in complex with 4-propionyl-pyrrole derivative 2
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