pfam15670: Spem1 (this model, PSSM-Id:292298 is obsolete and has been replaced by 464793)
Spermatid maturation protein 1
Spem1 is a family of mammalian proteins. Proteins are exclusively expressed in the cytoplasm of the last three steps of spermiogenesis in the mouse testis, and male mice deficient in Spem1 are completely infertile because of deformed sperm.