Sperm surface protein Sp17 (Cancer/testis antigen 22) (CT22) (Sp17-1) (Sperm autoantigenic protein 17) (Sperm protein 17)
1_MSIPF 6_ SNTHY 11_ RIPQG 16_ FGNLL 21_ EGLTR 26_ EILRE 31_ QPDNI 36_ PAFAA 41_ AYFES 46_ LLEKR 51_ EKTNF 56_ DPAEW 61_ GSKVE 66_ DRFYN 71_ NHAFE 76_ EQEPP 81_ EKSDP 86_ KQEES 91_ QISGK 96_ EEETS 101_ VTILD 106_ SSEED 111_ KEKEE 116_ VAAVK 121_ IQAAF 126_ RGHIA 131_ REEAK 136_ KMKTN 141_ SLQNE 146_EKEEN
1: Sperm surface zona pellucida binding protein. Helps to bind spermatozoa to the zona pellucida with high affinity. Might function in binding zona pellucida and carbohydrates (By similarity)