Technical Data
Bisindolylmaleimide IX methanesulfonate (Ro 31-8220, BIM IX)
Biochemicals Storage: 4C/-20CShipping: Blue Ice
Selective and cell permeable protein kinase C (PKC) inhibitor. Inhibits the stimulation of insulin secretion by glucose. Inhibits T cell activation. Apoptosis inducer. Potent glycogen synthase kinase-3 (GSK-3) inhibitor. Transcription inhibitor. Induces TNF receptor family-mediated cell death. Pim-1 kinase inhibitor. Antitumor compound.

Storage and Stability:
Short-term Storage: +4C
Long-term Storage: -20C
Stable for at least 2 years after receipt when stored at -20C. Store solutions at -20C in the dark.

CAS Number:

Molecular Formula:
C25H23N5O2S . CH4O3S

Molecular Weight:
Purity: >98% (NMR)

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Product Reference:
Potent selective inhibitors of protein kinase C: P.D. Davis, et al.; FEBS Lett. 259, 61 (1989)
RO 31-8220 and RO 31-7549 show improved selectivity for protein kinase C over staurosporine in macrophages: P. Dieter & E. Fitzke; BBRC 181, 396 (1991)
Isoenzyme specificity of bisindolylmaleimides, selective inhibitors of protein kinase C: S.E. Wilkinson, et al.; Biochem. J. 294, 335 (1993)
Inhibition of glucose-stimulated insulin secretion by Ro 31-8220, a protein kinase C inhibitor: S.J. Persaud & P.M. Jones; Endocrine 3, 285 (1995)
RO 31-8220, a novel protein kinase C inhibitor, inhibits early and late T cell activation events: L. Geiselhart, et al.; Transplantation 61, 1637 (1996)
Induction of apoptosis in glioblastoma cells by inhibition of protein kinase C and its association with the rapid accumulation of p53 and induction of the insulin-like growth factor-1-binding protein-3: L. Shen & R.I. Glazer; Biochem. Pharmacol. 55, 1711 (1998)
The protein kinase C inhibitors bisindolylmaleimide I (GF 109203x) and IX (Ro 31-8220) are potent inhibitors of glycogen synthase kinase-3 activity: I. Hers, et al.; FEBS Lett. 460, 433 (1999)
The staurosporine analog, Ro-31-8220, induces apoptosis independently of its ability to inhibit protein kinase C: Z. Han, et al.; Cell Death Differ. 7, 521 (2000)
Bisindolylmaleimide IX facilitates tumor necrosis factor receptor family-mediated cell death and acts as an inhibitor of transcription: O.W. Rokhlin, et al.; J. Biol. Chem. 277, 33213 (2002)
Bisindolylmaleimide IX Induces Reversible and Time-Dependent Tumor Necrosis Factor Receptor Family-Mediated Caspase Activation and Cell Death: O.W. Rokhlin & M.B. Cohen; Cancer Biol. Ther. 2, 266 (2003)
Protein kinase C-independent effects of protein kinase D3 in glucose transport in L6 myotubes: J. Chen, et al.; Mol. Pharmacol. 67, 152 (2005)
Pim-1 ligand-bound structures reveal the mechanism of serine/threonine kinase inhibition by LY294002: M.D. Jacobs, et al.; J. Biol. Chem. 280, 13728 (2005)
Bisindolylmaleimide IX facilitates extrinsic and initiates intrinsic apoptosis in TNF-alpha-resistant human colon adenocarcinoma COLO 205 cells: B. Pajak, et al.; Apoptosis 13, 509 (2008)

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.