>6cysB (B:) observed residues (from ATOM records)
gtfslpalpyaydalepsisaqimelhhskhhqtyvtnlnnalktystalaandvpsqia
lqaaikfnggghinhslfwenlcpasspdadpasapeltaeiaktwgsldkfkeamgkal
lgiqgsgwgwlvkegsglrivttkdqgpvvggevpvfgidmwehayylqylngkaayvdn
iwkvinwktaeqrfkgdredafkilkasl