>4toaB (B:) observed residues (from ATOM records)
kgdkkviqhlnkilgneliainqyflhsrmwndwglkrlgaheyhesidemkhadklier
ilfleglpnlqdlgklligentqemlqcdlnlelkatkdlreaivhceqvhdyvsrdllk
dileseeehidyletqlgliqkvglelylqshmhe