>2z5rA (A:) observed residues (from ATOM records)
sqirqnysteveaavnrlvnlylrasytylslgfyfdrddvalegvchffrelaeekreg
aerllkmqnqrggralfqdlqkpsqdewgttldamkaaivlekslnqalldlhalgsaqa
dphlcdfleshfldeevklikkmgdhltniqrlvgsqaglgeylferltlkh