View source for 9kds


==The crystal structure of human AURKA kinase domain in complex with RA1==
<StructureSection load='9kds' size='340' side='right'caption='[[9kds]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[9kds]] 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=9KDS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9KDS 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]] 2.500118&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A1EFT:(2~{S})-2-azanyl-5-[[(5~{R})-5-[4-[[9-chloranyl-7-(2-fluoranyl-6-methoxy-phenyl)-5~{H}-pyrimido[5,4-d][2]benzazepin-2-yl]amino]-2-methoxy-phenyl]-4-oxidanylidene-1,5-dihydroimidazol-2-yl]amino]pentanoic+acid'>A1EFT</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=9kds FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9kds OCA], [https://pdbe.org/9kds PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9kds RCSB], [https://www.ebi.ac.uk/pdbsum/9kds PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9kds ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/AURKA_HUMAN AURKA_HUMAN] Mitotic serine/threonine kinases that contributes to the regulation of cell cycle progression. Associates with the centrosome and the spindle microtubules during mitosis and plays a critical role in various mitotic events including the establishment of mitotic spindle, centrosome duplication, centrosome separation as well as maturation, chromosomal alignment, spindle assembly checkpoint, and cytokinesis. Required for initial activation of CDK1 at centrosomes. Phosphorylates numerous target proteins, including ARHGEF2, BORA, BRCA1, CDC25B, DLGP5, HDAC6, KIF2A, LATS2, NDEL1, PARD3, PPP1R2, PLK1, RASSF1, TACC3, p53/TP53 and TPX2. Regulates KIF2A tubulin depolymerase activity. Required for normal axon formation. Plays a role in microtubule remodeling during neurite extension. Important for microtubule formation and/or stabilization. Also acts as a key regulatory component of the p53/TP53 pathway, and particularly the checkpoint-response pathways critical for oncogenic transformation of cells, by phosphorylating and stabilizing p53/TP53. Phosphorylates its own inhibitors, the protein phosphatase type 1 (PP1) isoforms, to inhibit their activity. Necessary for proper cilia disassembly prior to mitosis.<ref>PMID:9606188</ref> <ref>PMID:11039908</ref> <ref>PMID:11551964</ref> <ref>PMID:12390251</ref> <ref>PMID:13678582</ref> <ref>PMID:14523000</ref> <ref>PMID:15147269</ref> <ref>PMID:14990569</ref> <ref>PMID:15128871</ref> <ref>PMID:14702041</ref> <ref>PMID:15987997</ref> <ref>PMID:18056443</ref> <ref>PMID:17604723</ref> <ref>PMID:17360485</ref> <ref>PMID:18615013</ref> <ref>PMID:19812038</ref> <ref>PMID:19351716</ref> <ref>PMID:19668197</ref> <ref>PMID:19357306</ref> <ref>PMID:20643351</ref> <ref>PMID:17125279</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Targeted covalent inhibitors (TCIs) play an essential role in the fields of kinase research and drug discovery. TCI strategies to target more common amino acid side-chains have yet to be demonstrated. Targeting other amino acids would also expand the pharmaceutical industry's toolbox for targeting other tough-to-drug proteins. We report herein a glyoxal-based, arginine-reactive strategy to generate potent and selective small-molecule TCIs of Mcl-1 (an important anti-apoptotic protein) by selectively targeting the conserved arginine (R263) in the protein. We further validated the generality of this strategy by developing glyoxal-based, irreversible covalent inhibitors of AURKA (a cancer-related kinase) that showed exclusive reactivity with a solvent-exposed arginine (R220) of this enzyme. We showed the resulting compounds were potent, selective and cell-active, capable of covalently engaging endogenous AURKA in MV-4-11 cells with long residence time. Finally, we showed the potential application of glyoxal-based TCIs in targeting an acquired drug-resistance mutant of ALK kinase (G1202R).

Cell-Active, Arginine-Targeting Irreversible Covalent Inhibitors for Non-Kinases and Kinases.,Chen P, Wang L, Wang X, Sun J, Miao F, Wang Z, Yang F, Xiang M, Gu M, Li S, Zhang J, Yuan P, Lu X, Zhang ZM, Gao L, Yao SQ Angew Chem Int Ed Engl. 2025 Mar 24;64(13):e202422372. doi: , 10.1002/anie.202422372. Epub 2025 Jan 15. PMID:39778034<ref>PMID:39778034</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 9kds" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Wang L]]
[[Category: Zhang ZM]]