protein binding | calmodulin binding
cellular process | cell recognition | sperm-egg recognition | reproduction | reproductive process | binding of sperm to zona pellucida | cell-cell recognition | fertilization | single fertilization | sexual reproduction
sperm flagellum | cell | external side of plasma membrane | cytoplasm | sperm principal piece | 9+2 motile cilium | motile cilium | cell projection | plasma membrane | cilium | organelle | cell periphery | sperm fibrous sheath | cell surface | intracellular | membrane