>1fsxB (B:) SEQRES residues mltaeekaavtafwgkvkvdevggealgrllvvypwtqrffesfgdlstadavmnnpkvk ahgkkvldsfsngmkhlddlkgtfaalselhcdklhvdpenfkllgnvlvvvlarnfgke ftpvlqadfqkvvagvanalahryh