>5nl9B (B:) observed residues (from ATOM records) smkdsyerskkiledaginvtvqrlqmanlllskpqhltadqvfqlinehmpnasratif nnlklfaekgivnllelksgitlydsnvihhhhaidektgeiydisldsklqekvlselk qdfklktgsslencnlsitlkgkknp