Tubulysin A (TubA)

Tubulysin A(TubA) is a myxobacterial product that can function as an antiangiogenic agent in many in vitro assays; anti-microtubule, anti-mitotic, an apoptosis inducer, anticancer, anti-angiogenic, and antiproliferative.IC50 value: Target: microtubuleTubulysin A is a novel antibiotic, which is anti-microtubule, anti-mitotic, apoptosis inducer, anticancer, anti-angiogenic, and antiproliferative. Tubulysins are cytotoxic peptides, which include 9 members (A-I). Tubulysin A has potential application as an anticancer agent. It arrests cells in the G2/M phase. Tubulysin A inhibits polymerization more efficiently than vinblastine and induces depolymerization of isolated microtubules. Tubulysin A has potent cytostatic effects on various tumor cell lines with IC50 in the picomolar range.

[1]. Kaur G, et al. Biological evaluation of tubulysin A: a potential anticancer and antiangiogenic natural product. Biochem J. 2006 Jun 1;396(2):235-42. [2]. Sasse F, et al. Tubulysins, new cytostatic peptides from myxobacteria acting on microtubuli. Production, isolation, physico-chemical and biological properties. J Antibiot (Tokyo). 2000 Sep;53(9):879-85. [3]. Khalil MW, et al. Mechanism of action of tubulysin, an antimitotic peptide from myxobacteria. Chembiochem. 2006 Apr;7(4):678-83.