>1c2yM (M:) observed residues (from ATOM records)
mnelegyvtkaqsfrfaivvarfnefvtrrlmegaldtfkkysvnedidvvwvpgayelg
vtaqalgksgkyhaivclgavvkgdtshydavvnsassgvlsaglnsgvpcvfgvltcdn
mdqainraggkagnkgaesaltaiemaslfehhlk