>1s3jA (A:) observed residues (from ATOM records) sadqlmsdiqlslqalfqkiqpemlesmekqgvtpaqlfvlaslkkhgslkvseiaerme vkpsavtlmadrleqknliarthntkdrrvidlsltdegdikfeevlagrkaimarylsf lteeemlqaahitaklaqaaetd