>1b7yA (A:) observed residues (from ATOM records)
vdvslpgaslfsgglhpitlmerelveifralgyqavegpeveseffnfdalnipehhpa
rdmwdtfwltgegfrlegplgeevegrlllrthtspmqvrymvahtppfrivvpgrvfrf
eqtdatheavfhqleglvvgegiamahlkgaiyelaqalfgpdskvrfqpvyfpfvepga
qfavwwpeggkwlelggagmvhpkvfqavdayrerlglppayrgvtgfafglgverlaml
rygipdiryffggrlkfleqfkgvl