>1c2yA (A:) observed residues (from ATOM records) mnelegyvtkaqsfrfaivvarfnefvtrrlmegaldtfkkysvnedidvvwvpgayelg vtaqalgksgkyhaivclgavvkgdtshydavvnsassgvlsaglnsgvpcvfgvltcdn mdqainraggkagnkgaesaltaiemaslfehhlk