>1o57B (B:) observed residues (from ATOM records)
mkfrrsgrlvdltnyllthphelipltffseryesakssisedltiikqtfeqqgigtll
tvpgaaggvkyipkmkqaeaeefvqtlgqslanperilpggyvyltdilgkpsvlskvgk
lfasvfaereidvvmtvatkgiplayaaasylnvpvvivrkdgstvsinyvsgssnriqt
mslakrsmktgsnvliiddfmkaggtingminlldefnanvagigvlveaegvderlvde
ymslltlstinmkeksieiqngnflrffk