>1nxjB (B:) observed residues (from ATOM records) isfrptadlvddigpdvrscdlqfrqfggrsqfagpistvrcfqdnallksvlsqpsagg vlvidgagslhtalvgdviaelarstgwtglivhgavrdaaalrgidigikalgtnprks tktgagerdveitlggvtfvpgdiaysdddgiivv