>4toaU (U:) observed residues (from ATOM records) kgdkkviqhlnkilgneliainqyflhsrmwndwglkrlgaheyhesidemkhadklier ilfleglpnlqdlgklligentqemlqcdlnlelkatkdlreaivhceqvhdyvsrdllk dileseeehidyletqlgliqkvglelylqshmhe