>3af9X (X:) observed residues (from ATOM records)
sqirqnysteveaavnrlvnlylrasytylslgfyfdrddvalegvahffrelaeekreg
aerllkmqnqrggralfqdlqkpsqdewgttldamkaaivlekslnqalldlhalgsaqa
dphlcdfleshfldeevklikkmgdhltniqrlvgsqaglgeylferltlk