Biochem/physiol Actions

Reversible: yes

Primary TargetGolgi ARF1 GTPase

Product does not compete with ATP.

Target IC₅₀: 20 µM inhibiting vesicular traffic from ER to Golgi in BSC1 cells

Cell permeable: yes

General description

A cell-permeable methylanthranilate analog that reversibly inhibits vesicular traffic from ER to Golgi in mammalian cells (IC₅₀ = 20 µM in BSC1 cells) by inducing tubulation and collapsing of the Golgi membrane and redirecting the traffic back to ER. Acts as a potent and selective modifier of Golgi ARF1 GTPase activity. Unlike another membrane traffic inhibitor Brefeldin A (BFA; Cat. No. 203729), its effect seems to be limited to Golgi, as no effect can be detected on endocytic organelles, such as endosomes and TGN (trans-Golgi network). Its inhibitory mechanism and target(s) appear to be quite different from those of BFA and thus serves as a valuable alternative that complements BFA in membrane traffic studies.

A cell-permeable methylanthranilate analog that reversibly blocks vesicular traffic from the ER to the Golgi in mammalian cells (IC₅₀ = 20 µM in BSC1 cells) by inducing tubulation and collapsing of the Golgi membrane and re-directing the traffic back to the ER. Acts as a potent and selective modifier of Golgi ARF1 GTPase activity. Unlike another membrane traffic inhibitor, Brefeldin A (BFA) (Cat. No. 203729), the effects appear to be limited to the Golgi, as no effects are detected on endocytic organelles, such as endosomes and trans-Golgi network (TGN). The inhibitory mechanism and target(s) appear to be different from those of BFA, thus making it a valuable alternative that complements BFA in membrane trafficking studies.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Other Notes

Feng. Y., et al. 2003. Proc. Natl. Acad. Sci. USA100, 6469.

Packaging

Packaged under inert gas

25 mg in Plastic ampoule

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Warning

Toxicity: Harmful (C)