Vasodilator-stimulated phosphoprotein (VASP) is an actin cytoskeletal regulatory protein. This region corresponds to the tetramerisation domain which forms a right handed alpha helical coiled coil structure [1].

1: The VASP tetramerization domain is a right-handed coiled coil based on a 15-residue repeat. Kuhnel K, Jarchau T, Wolf E, Schlichting I, Walter U, Wittinghofer A, Strelkov SV; Proc Natl Acad Sci U S A. 2004;101:17027-17032. PMID:15569942