PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8185929-4 1994 Newly synthesized mouse protamine 1 (mP1) and the precursor to mouse protamine 2 (pre-mP2) migrated more slowly during electrophoresis than their predominant testicular forms, identified by staining with Coomassie blue R-250. Coomassie brilliant blue R 204-224 protamine 2 Mus musculus 69-80