8afc
From Proteopedia
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[8afc]] is a 2 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=8AFC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8AFC FirstGlance]. <br> | <table><tr><td colspan='2'>[[8afc]] is a 2 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=8AFC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8AFC FirstGlance]. <br> | ||
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=LXK:2-azanyl-4,4-dimethyl-6,7-dihydro-5~{H}-1-benzothiophene-3-carbonitrile'>LXK</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.41Å</td></tr> |
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=LXK:2-azanyl-4,4-dimethyl-6,7-dihydro-5~{H}-1-benzothiophene-3-carbonitrile'>LXK</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=8afc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8afc OCA], [https://pdbe.org/8afc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8afc RCSB], [https://www.ebi.ac.uk/pdbsum/8afc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8afc ProSAT]</span></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=8afc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8afc OCA], [https://pdbe.org/8afc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8afc RCSB], [https://www.ebi.ac.uk/pdbsum/8afc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8afc ProSAT]</span></td></tr> | ||
</table> | </table> | ||
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Activating mutations in KRAS are the most frequent oncogenic alterations in cancer. The oncogenic hotspot position 12, located at the lip of the switch II pocket, offers a covalent attachment point for KRAS(G12C) inhibitors. To date, KRAS(G12C) inhibitors have been discovered by first covalently binding to the cysteine at position 12 and then optimizing pocket binding. We report on the discovery of the in vivo active KRAS(G12C) inhibitor BI-0474 using a different approach, in which small molecules that bind reversibly to the switch II pocket were identified and then optimized for non-covalent binding using structure-based design. Finally, the Michael acceptor containing warhead was attached. Our approach offers not only an alternative approach to discovering KRAS(G12C) inhibitors but also provides a starting point for the discovery of inhibitors against other oncogenic KRAS mutants. | Activating mutations in KRAS are the most frequent oncogenic alterations in cancer. The oncogenic hotspot position 12, located at the lip of the switch II pocket, offers a covalent attachment point for KRAS(G12C) inhibitors. To date, KRAS(G12C) inhibitors have been discovered by first covalently binding to the cysteine at position 12 and then optimizing pocket binding. We report on the discovery of the in vivo active KRAS(G12C) inhibitor BI-0474 using a different approach, in which small molecules that bind reversibly to the switch II pocket were identified and then optimized for non-covalent binding using structure-based design. Finally, the Michael acceptor containing warhead was attached. Our approach offers not only an alternative approach to discovering KRAS(G12C) inhibitors but also provides a starting point for the discovery of inhibitors against other oncogenic KRAS mutants. | ||
| - | Fragment Optimization of Reversible Binding to the Switch II Pocket on KRAS Leads to a Potent, In Vivo Active KRAS(G12C) Inhibitor.,Broker J, Waterson AG, Smethurst C, Kessler D, Bottcher J, Mayer M, Gmaschitz G, Phan J, Little A, Abbott JR, Sun Q, Gmachl M, Rudolph D, Arnhof H, Rumpel K, Savarese F, Gerstberger T, Mischerikow N, Treu M, Herdeis L, Wunberg T, Gollner A, Weinstabl H, Mantoulidis A, Kramer O, McConnell DB, W Fesik S J Med Chem. 2022 | + | Fragment Optimization of Reversible Binding to the Switch II Pocket on KRAS Leads to a Potent, In Vivo Active KRAS(G12C) Inhibitor.,Broker J, Waterson AG, Smethurst C, Kessler D, Bottcher J, Mayer M, Gmaschitz G, Phan J, Little A, Abbott JR, Sun Q, Gmachl M, Rudolph D, Arnhof H, Rumpel K, Savarese F, Gerstberger T, Mischerikow N, Treu M, Herdeis L, Wunberg T, Gollner A, Weinstabl H, Mantoulidis A, Kramer O, McConnell DB, W Fesik S J Med Chem. 2022 Nov 10;65(21):14614-14629. doi: 10.1021/acs.jmedchem.2c01120. , Epub 2022 Oct 27. PMID:36300829<ref>PMID:36300829</ref> |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 8afc" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 8afc" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[GTPase KRas 3D structures|GTPase KRas 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
Current revision
CRYSTAL STRUCTURE OF KRAS-G12C IN COMPLEX WITH COMPOUND 12
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