>6c3uB (B:) observed residues (from ATOM records)
mlsglnhltlavsqlapsvafyqqllgmtlharwdsgaylscgdlwlclsldpqrrvtpp
eesdythyafsiseadfasfaarleaagvavwklnrsegashyfldpdghklelhvgsla
qrlaacreqpykgmvffe