>3rbcO (O:) observed residues (from ATOM records)
mvsqvrqnyhsdceaavnrmlnlelyasytyssmyaffdrddvalhnvaeffkehsheer
ehaekfmkyqnkrggrvvlqdikkperdewgntleamqaalqlektvnqalldlhklatd
kvdphlcdfleseyleeqvkdikrigdfitnlkrlglpengmgeylfdkhsvk