Reinert M, Calvete J J, Sanz L, Mann K, Töpfer-Petersen E
Institut für Reproduktionsmedizin, Tierärztliche Hochschule Hannover, Germany.
Eur J Biochem. 1996 Dec 15;242(3):636-40. doi: 10.1111/j.1432-1033.1996.0636r.x.
The primary-structure of HSP-7, a 14-kDa protein isolated from stallion seminal plasma, has been determined, HSP-7 belongs to the spermadhesin protein family, shares 98% sequence identity with the boar seminal plasma protein AWN, and, like its boar homolog, displays zona-pellucida-binding activity. Despite these conserved structural and functional features, the equine and porcine spermadhesins differ in their topography on spermatozoa.