>6fx8A (A:) observed residues (from ATOM records)
ssqirqnysteveaavnrlvnlylrasytylslgfyfdrddvalegvchffrelaeekre
gaerllkmqnqrggralfqdlqkpsqdewgttldamkaaivlekslnqalldlhalgsaq
adphlcdfleshfldeevklikkmgdhltniqrlvgsqaglgeylferltlk