Tubacin is a highly potent and selective, reversible, cell-permeable HDAC6 inhibitor . Tubacin does not inhibit HDAC6 histone deacetylase activity; instead, tubacin is specific for the tubulin deacetylase activity of HDAC6. It reversibly inhibits α-tubulin deacetylation in mammalian cells and increases α-tubulin acetylation levels with no effect on histone acetylation or cell cycle progression.

N-[4-[(2R,4R,6S)-4-[(4,5-diphenyl-1,3-oxazol-2-yl)sulfanylmethyl]-6-[4-(hydroxymethyl)phenyl]-1,3-dioxan-2-yl]phenyl]-N'-hydroxyoctanediamide

≥98% by HPLC

Tubacin reversibly inhibits α-tubulin deacetylation activity of HDAC6 (IC50 = 4 nM) The IC50 for other HDACs is 1000-fold higher, making tubacin both more selective and more potent than Tubastatin A, which also inhibits HDAC8.

Soluble in DMSO

Store at or below –20°C. Solid form is stable at least 12 months from date of receipt, when stored as directed. Do not store aqueous solutions for more than one day.

1. Aldana-Masangkay GI, et al. Leuk Lymphoma. 2011 Aug;52(8):1544-55.
2. Kawada J, et al. J Biol Chem. 2009 Jun 19;284(25):17102-9.

Deacetylase Inhibitor

Inhibitor