>1xz3A (A:) SEQRES residues ssqirqnysteveaavnrlvnlylrasytylslgfyfdrddvalegvchffrelaeekre gaerllkmqnqrggralfqdlqkpsqdewgttldamkaaivlekslnqalldlhalgsaq adphlcdfleshfldeevklikkmgdhltniqrlvgsqaglgeylferltlkhd