>6j4jB (B:) observed residues (from ATOM records)
nvslarqnyaddsesaineqinveynvsyvyhalfayfdrdnialkglakffkesseeer
ehaeqlikyqnirggrvvlhpitsppsefehsekgdalyamelalslekltnekllhvhs
vadrnndpqladfieseflyeqvksikkiaeyvaqlrlvgkghgvwhfdqkllhd