>1bcsB (B:) SEQRES residues
tgsydpcterystayynrrdvqmalhanvtgamnytwatcsdtinthwhdaprsmlpiyr
eliaaglriwvfsgdtdavvpltatrysigalglptttswypwyddqevggwsqvykglt
lvsvrgaghevplhrprqalvlfqyflqgkpmpgqtknat