Catalog # VM2771

VASP (C-terminal region) Antibody

Mouse Monoclonal

Application / Dilution

Size 100 μl

Species Reactivity Hu

MW 50 kDa

Isotype IgG1



Actin filament tethering and bundling are important mechanisms involved in actin superstructure assembly. The ENA/VASP family includes VASP, mena, and Ena-Vasp-like (EVL). These multidomain proteins localize to the leading edge of filopodia where they associate with AFs, interact with profilin, and compete with capping proteins at the barbed end of AFs. Artificial relocalization of VASP from the plasma membrane to mitochondrial membranes inhibits filopodial formation and axon branching, while deletion of all three ENA/VASP proteins produces defects in cortical axon-tract formation. Regulation of VASP protein activity occurs through phosphorylation at Ser-157, Ser-239, and Thr-278. AMPK phosphorylates Thr-278, leading to impaired actin stress fiber assembly and changes in cell morphology.



Applewhite, D.A. et al. (2007). Mol Biol Cell. 18(7):2579.
Blume, C. et al. (2007) J Biol Chem. 282(7):4601.
Krause, M. et al. (2003) Annu Rev Cell Dev Biol. 19: 541.

Western blot image of human A431 cells stimulated with calyculin A (100 nM) for 30 min. The blots were untreated (lanes 1 & 3) or treated with lambda phosphatase (lanes 2 & 4), then probed with mouse monoclonal VASP (C-term.) antibody (lanes 1 & 2) or rabbit polyclonal VASP (Thr-278) phospho-specific antibody (lanes 3 & 4).

Immunocytochemical labeling of VASP in aldehyde-fixed and NP-40-permeabilized A431 cells. The cells were labeled with mouse monoclonal VASP (C-terminal region) antibody, then the antibody was detected using appropriate secondary antibody conjugated to DyLight® 594.

Clone (M277) was generated from a recombinant protein that includes amino acids from the C-terminal region of human VASP.

*For more information, see UniProt Accession P50552
Mouse monoclonal antibody purified with protein A chromatography is supplied in 100µl phosphate-buffered saline, 50% glycerol, 1 mg/ml BSA, and 0.05% sodium azide. Store at –20°C. Stable for 1 year.

The products are are safely shipped at ambient temperature for both domestic and international shipments. Each product is guaranteed to match the specifications as indicated on the corresponding technical data sheet. Please store at -20C upon arrival for long term storage.

This antibody detects 46 and 50 kDa* proteins corresponding to the apparent molecular mass of VASP on SDS-PAGE immunoblots of human A431, HeLa, and HUVEC.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.

This kit contains: