5ca0 | pdb_00005ca0

Crystal structure of T2R-TTL-Lexibulin complex

spinqualitylabelsall models 5ca0, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5ca0 is a 6 chain structure with sequence from [1] and Sus scrofa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: ACP, CA, GDP, GOL, GTP, LXL, MES, MG Related: 5c8y, 5ca1, 5cb4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [TBA1B_PIG] Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain. [STMN4_RAT] Exhibits microtubule-destabilizing activity. [F2Z5B2_PIG] Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain.[RuleBase:RU003505] Publication Abstract from PubMed Microtubules are dynamic assemblies of alphabeta-tubulin heterodimers and have been recognized as highly attractive targets for cancer chemotherapy. A broad range of agents bind to tubulin and interfere with microtubule assembly. Despite having a long history of characterization, colchicine binding site inhibitors (CBSIs) have not yet reached the commercial phase as anti-cancer drugs to date. We determined the structures of tubulin complexed with a set of structurally diverse CBSIs (lexibulin, nocodazole, plinabulin and tivantinib), among which nocodazole and tivantinib are both binary-function inhibitors targeting cancer-related kinases and microtubules simultaneously. High resolution structures revealed the detailed interactions between these ligands and tubulin. Our results showed that the binding modes of the CBSIs were different from previous docking models, highlighting the importance of crystal structure information in structure-based drug design. A real structure-based pharmacophore was proposed to rationalize key common interactions of the CBSIs at the colchicine domain. Our studies provide a solid structural basis for developing new anti-cancer agents for the colchicine binding site. DATABASE: The atomic coordinates and structure factors for tubulin complexed with lexibulin, nocodazole, plinabulin and tivantinib have been deposited in the Protein Data Bank under accession codes 5CA0, 5CA1, 5C8Y and 5CB4, respectively. Structures of a diverse set of colchicine binding site inhibitors in complex with tubulin provide a rationale for drug discovery.,Wang Y, Zhang H, Gigant B, Yu Y, Wu Y, Chen X, Lai Q, Yang Z, Chen Q, Yang J FEBS J. 2016 Jan;283(1):102-11. doi: 10.1111/febs.13555. Epub 2015 Nov 4. PMID:26462166 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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