>3bl7B (B:) observed residues (from ATOM records)
vrlpfsgfrlqkvlresardkiiflhgkvnedavvilektpfqveqvaqlltgspelqlq
fsndiystyhlfpprqlndvkttvvypatekhlqkylrqdlrliretgddyrnitlphle
sqslsiqwvynildkkaeadrivfenpdpsdgfvlipdlkwnqqqlddlyliaichrrgi
rslrdltpehlpllrnilhqgqeailqryrmkgdhlrvylhylpsyyhlhvhftalgfea
pgsgverahllaevienlecdprhyqqrtltfalraddpllkllqeaqq