>2v2nA (A:) observed residues (from ATOM records)
ssqirqnysteveaavnrlvnlylrasytylslgfyfdrddvalegvchffrelaeekme
gaerllkmqnqrggralfqdlqkpsqdewgttpdamkaaivlekslnqalldlhalgsaq
adphlcdfleshfldeevklikkmgdhltniqrlvgsqaglgeylferltl