Catalog # VX2785

phospho-VASP (Thr-278) Peptide

Blocking Peptide

Application Dilution
ELISA50 ng/well

Size 50 μg



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.

Phospho-VASP (Thr-278) synthetic peptide corresponding to amino acids surrounding threonine 278 in human VASP. This sequence has significant homology to the conserved site in rat and mouse VASP.

*For more information, see UniProt Accession P50552
Blocking Peptide is supplied in 50µl phosphate-buffered saline 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 peptide is specifically recognized by phospho-specific VASP (Thr-278) antibody (VP2781) in ELISA, and has been shown to block the reactivity of VP2781 in Western blot and is recommended for blocking in immunocytochemistry.

*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: