View source for 6uvh


==Crystal structure of BCL-XL bound to compound 15: (R)-2-(3-(2-((4'-Chloro-[1,1'-biphenyl]-2-yl)methyl)-1,2,3,4-tetrahydroisoquinoline-6-carbonyl)-3-(4-methylbenzyl)ureido)-3-((cyclohexylmethyl)sulfonyl)propanoic acid==
<StructureSection load='6uvh' size='340' side='right'caption='[[6uvh]], [[Resolution|resolution]] 2.19&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6uvh]] is a 4 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=6UVH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6UVH 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]] 2.19&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=QHJ:(R)-2-(3-(2-((4-Chloro-[1,1-biphenyl]-2-yl)methyl)-1,2,3,4-tetrahydroisoquinoline-6-carbonyl)-3-(4-methylbenzyl)ureido)-3-((cyclohexylmethyl)sulfonyl)propanoic+acid'>QHJ</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=6uvh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6uvh OCA], [https://pdbe.org/6uvh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6uvh RCSB], [https://www.ebi.ac.uk/pdbsum/6uvh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6uvh ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/B2CL1_HUMAN B2CL1_HUMAN] Potent inhibitor of cell death. Inhibits activation of caspases (By similarity). Appears to regulate cell death by blocking the voltage-dependent anion channel (VDAC) by binding to it and preventing the release of the caspase activator, CYC1, from the mitochondrial membrane. Also acts as a regulator of G2 checkpoint and progression to cytokinesis during mitosis.<ref>PMID:19917720</ref> <ref>PMID:21840391</ref>   Isoform Bcl-X(S) promotes apoptosis.<ref>PMID:19917720</ref> <ref>PMID:21840391</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The BCL-2 family of proteins (including the prosurvival proteins BCL-2, BCL-XL, and MCL-1) is an important target for the development of novel anticancer therapeutics. Despite the challenges of targeting protein-protein interaction (PPI) interfaces with small molecules, a number of inhibitors (called BH3 mimetics) have entered the clinic and the BCL-2 inhibitor, ABT-199/venetoclax, is already proving transformative. For BCL-XL, new validated chemical series are desirable. Here, we outline the crystallography-guided development of a structurally distinct series of BCL-XL/BCL-2 inhibitors based on a benzoylurea scaffold, originally proposed as alpha-helix mimetics. We describe structure-guided exploration of a cryptic "p5" pocket identified in BCL-XL. This work yields novel inhibitors with submicromolar binding, with marked selectivity toward BCL-XL. Extension into the hydrophobic p2 pocket yielded the most potent inhibitor in the series, binding strongly to BCL-XL and BCL-2 (nanomolar-range half-maximal inhibitory concentration (IC50)) and displaying mechanism-based killing in cells engineered to depend on BCL-XL for survival.

Structure-Guided Development of Potent Benzoylurea Inhibitors of BCL-XL and BCL-2.,Roy MJ, Vom A, Okamoto T, Smith BJ, Birkinshaw RW, Yang H, Abdo H, White CA, Segal D, Huang DCS, Baell JB, Colman PM, Czabotar PE, Lessene G J Med Chem. 2021 Apr 27. doi: 10.1021/acs.jmedchem.0c01771. PMID:33904752<ref>PMID:33904752</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6uvh" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Czabotar PE]]
[[Category: Lessene G]]
[[Category: Roy MJ]]