>2ancB (B:) observed residues (from ATOM records)
aqgtlyivsapsgagkssliqallktqplydtqvsvshttrqprpgevhgehyffvnhde
fkemisrdaflehaevfgnyygtsreaieqvlatgvdvfldidwqgaqqirqkmpharsi
filppskieldrrlrgrgqdseeviakrmaqavaemshyaeydylivnddfdtaltdlkt
iiraerlrmsrqkqrhdaliskll