>1w90A (A:) observed residues (from ATOM records)
vratytvifknasglpngydnwgwgctlsyyggamiinpqegkygavslkrnsgsfrggs
lrfdmknegkvkilvenseadekfevetispsdeyvtyildvdfdlpfdriafqdapgng
driwiknlvhstgsaddfvdpinlehhhhhh