>3rbcT (T:) observed residues (from ATOM records)
mvsqvrqnyhsdceaavnrmlnlelyasytyssmyaffdrddvalhnvaeffkehsheer
ehaekfmkyqnkrggrvvlqdikkperdewgntleamqaalqlektvnqalldlhklatd
kvdphlcdfleseyleeqvkdikrigdfitnlkrlglpengmgeylfdkhsvke