>3is7M (M:) observed residues (from ATOM records)
gdkkviqhlnkilgneliainqyflhsrmwndwglkrlgaheyhesidemkhadklieri
lfleglpnlqdlgklligentqemlqcdlnlelkatkdlreaivhceqvhdyvsrdllkd
ileseeehidyletqlgliqkvglenylqshmhe