Sperm-specific family, class p protein 19 [Caenorhabditis elegans] ref|NP_491000.1| Sperm-Specific family, class P family member (ssp-19) [Caenorhabditis elegans] pdb|1ROW|B Chain B, Structure Of Ssp-19, An Msp-Domain Protein Like Family Member In Caenorhabditis Elegans pdb|1ROW|A Chain A, Structure Of Ssp-19, An Msp-Domain Protein Like Family Member In Caenorhabditis Elegans