PR:Q8NEC5-1 cation channel sperm-associated protein 1 isoform 1 (human) hCATSPER1/iso:1 capable_of GO:0005515 protein binding PR:Q9P0X4 PMID:16740636 IPI NCBITaxon:9606 UniProtKB:Q8NEC5-1 20080601 PRO:CNA