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The X-ray structure of tubulysin analogue TGL in complex with tubulin and three possible routes for the development of next-generation tubulysin analogues.

Li W, Tan L, Zhang Z, Xia Q, Lei D, Li Y, Zhang T, Zeng S, Sima X, Wang Y
Biochem Biophys Res Commun 565 29-35 (2021)
Cited: 1 times
EuropePMC logo PMID: 34090207

Abstract

Microtubule-targeting agents (MTAs) are the most commonly used anti-cancer drugs. At least fourteen microtubule inhibitors and ten antibody drug conjugates (ADCs) linking MTAs are approved by FDA for clinical use in cancer therapy. In current research, we determined the crystal structure of tubulysin analogue TGL in complex with tubulin at a high resolution (2.65 Å). In addition, we summarized all of the previously published high-resolution crystal structures of ligands in the vinca site to provide structural insights for the rational design of the new vinca-site ligands. Moreover, based on the aligned results of the vinca site ligands, we provided three possible routes for designing new tubulysin analogues, namely macrocyclization between the N-14 side chain and the N-9 side chain, the hybird of tubulysin M and phomopsin A, and growing new aryl group at C-21. These designed structures will inspire the development of new MTAs or payloads in cancer therapy.

Articles citing this publication (1)

  1. Structural convergence for tubulin binding of CPAP and vinca domain microtubule inhibitors. Campanacci V, Urvoas A, Ammar Khodja L, Aumont-Nicaise M, Noiray M, Lachkar S, Curmi PA, Minard P, Gigant B. Proc Natl Acad Sci U S A 119 e2120098119 (2022)


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