News from the Bench

Discover what’s going on at CST, receive our latest application notes and tips, read our science features, and learn about our products.

Subscribe

Our U.S. Offices Will Be Closing Early

Our U.S. offices will be closing early on November 26th at 6:00 PM EST.

Questions?

Find answers on our FAQs page.

ANSWERS  

Visit PhosphoSitePlus®

PTM information and tools available.

LEARN MORE

Confocal immunofluorescent analysis of MCF-7 cells, untreated (left) or treated with Brefeldin A for 1.5 hours at 100 ng/ml (middle) or 20 μg/ml (right), using a Golgin-97 antibody (green). Actin filaments have been labeled with DY-554 phalloidin (red). Blue pseudocolor = DRAQ5™ (fluorescent DNA dye).

Learn more about how we get our images
Image

Product Usage Information

Brefeldin A is supplied as a 5 mg powder. Store at -20ºC. Brefeldin A is soluble in DMSO (also ethanol and methanol) and stock solutions (typically 10 mg/ml) should be stored at -20ºC. Working concentrations and length of treatment can vary depending on desired effect. Inhibiton of ER to Golgi trafficking was observed as low as 100 ng/ml and apoptosis was observed with prolonged treatment at 10 μg/ml.


Storage: Store lyophilized or in solution at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, use within 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Product Description

Molecular Weight:

280.4 g/mol


Purity:

>99%


Molecular Formula:

C16H24O4


Brefeldin A (BFA) is a fungal metabolite demonstrated to reversibly interfere with anterograde transport from the endoplasmic reticulum to the Golgi apparatus (1,2). While initially isolated as an antibiotic (3), and does have a wide range of antibiotic activity, it is primarily used as a biological research tool for studying protein transport. Treatment leads to a rapid accumulation of proteins within the ER and collapse of the Golgi stacks. Treatment with BFA can also inhibit protein secretion (4) and prolonged exposure can induce apoptosis (5). The main target of BFA appears to be ADP-ribosylation factor (ARF), which is responsible for association of coat protein to the Golgi membrane (6,7).


1.  Klausner, R.D. et al. (1992) J Cell Biol 116, 1071-80.

2.  Pelham, H.R. (1991) Cell 67, 449-51.

3.  Tamura, G. et al. (1968) J Antibiot (Tokyo) 21, 160-1.

4.  Misumi, Y. et al. (1986) J Biol Chem 261, 11398-403.

5.  Shao, R.G. et al. (1996) Exp Cell Res 227, 190-6.

6.  Helms, J.B. and Rothman, J.E. (1992) Nature 360, 352-4.

7.  Randazzo, P.A. et al. (1993) J Biol Chem 268, 9555-63.



For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.
DRAQ5® is a registered trademark of Biostatus Limited.