>2w2aB (B:) observed residues (from ATOM records)
tktfktlddflgthfiytydngweyewyakndhtvdyrihggmvagrwvtdqkadivmlt
egiykiswteptgtdvaldfmpnekklhgtiffpkwveehpeitvtyqnehidlmeqsre
kyatypklvvpefanitymgdagqnnedviseapykempndirngkyfdqnyhrl