>2f3tF (F:) observed residues (from ATOM records)
aqgtlyivsapsgagkssliqallktqplydtqvsvshttrqprpgevhgehyffvnhde
fkemisrdaflehaevfgnyygtsreaieqvlatgvdvfldidwqgaqqirqkmpharsi
filppskieldrrlrgrgqdseeviakrmaqavaemshyaeydylivnddfdtaltdlkt
iiraerlrmsrqkqrhdalisklla