>1SEM_1|Chains A, B|SEM-5|Caenorhabditis elegans (6239) ETKFVQALFDFNPQESGELAFKRGDVITLINKDDPNWWEGQLNNRRGIFPSNYVCPYN >1SEM_2|Chains C, D|10-RESIDUE PROLINE-RICH PEPTIDE FROM MSOS (ACE-PRO-PRO-PRO-VAL-PRO-PRO-ARG-ARG-ARG)|Mus musculus (10090) XPPPVPPRRR