>1xlyB (B:) observed residues (from ATOM records) tselveqilallsrylssyihvlnkfishlrrvatlrferttlikfvkklrfyndsvlsy nasefdkvilpiasmfvksvetfdllnyyltqslqkeilsktlnedltltaesilaiddt ynhfvkfsqwmieslrigsnlldlevvqfaseeefqtlsaawhsildgklsaldeefdvv atkw