>3sxlB (B:) SEQRES residues mesddlmndprasntnlivnylpqdmtdrelyalfraigpintcrimrdyktgysfgyaf vdftsemdsqraikvlngitvrnkrlkvsyarpggesikdtnlyvtnlprtitddqldti fgkygsivqknilrdkltgrprgvafvrynkreeaqeaisalnnvipeggsqplsvrlae ehgk