>1lk3B (B:) SEQRES residues nmlrdlrdafsrvktffqmkdqldnlllkeslledfkgylgcqalsemiqfyleevmpqa enqdpdikahvnslgenlktlrlrlrrchrflpcengggsggkskaveqvknafnklqek giykamsefdifinyieaymtmk