>1rm6F (F:) observed residues (from ATOM records) mknilrltlngraredlvpdnmllldylretvgltgtkqgcdggecgactvlvddrprla cstlahqvagkkvetveslatqgtlsklqaafheklgtqcgfctpgmimaseallrknps psrdeikaalagnlcrctgyvkiiksvetaaaarlce