>4is8B (B:) observed residues (from ATOM records)
siphlilellkcepdepqvqakimaylqqeqaklstfglmckmadqtlfsivewarssif
frelkvddqmkllqncwsellildhiyrqvvhgkegsiflvtgqqvdysiiashtevafn
nlmshaqelvaklrslqfdqrefvclkflvlfsldvknlenfqlvegvqeqvnaalldyt
mcnypqqtekfgqlllrlpeiraismqaeeylyykhlngdvplliemlha