Tags: Protein.
Cysteine-rich secretory protein 1 is a cysteine-rich secretory protein that in humans is encoded by the CRISP1 gene.Fertilization consists of a sequence of specific cell-cell interactions culminating in the fusion of the sperm and egg plasma membranes. Recognition binding and fusion occur through the interaction of complementary molecules that are localized to specific domains of the sperm and egg plasma membranes.