>1yflB (B:) observed residues (from ATOM records)
mlgaiaytgnkqsllpelkshfpkynrfvdlfcgglsvslnvngpvlandiqepiiemyk
rlinvswddvlkvikqyklsktskeeflklredynktrdplllyvlhfhgfsnmirindk
gnfttpfgkrtinknsekrfnhfkqncdkiifsslhfkdvkildgdfvyvdppylitvad
ynkfwsedeekdllnlldslndrgikfglsnvlehhgkentllkewskkynvkhlnngtd
evyifn