PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15457544-8 2004 Spam1 on the surface of caudal sperm was shown to mediate the increase in acrosome reactions induced by the synergistic effects of HA and progesterone, as confirmed in sperm from the Rb(6.16) translocation-bearing mice which are Spam1 mutants. histidinoalanine 131-133 sperm adhesion molecule 1 Mus musculus 0-5