>2x171 (1:) observed residues (from ATOM records)
mlsermlkalndqlnrelysaylyfamaayfedlglegfanwmkaqaeeeighalrfyny
iydrngrveldeipkppkewesplkafeaayehekfisksiyelaalaeeekdystrafl
ewfineqveeeasvkkildklkfakdspqilfmldkelsarapklpgllmqg