>1zy3A (A:) observed residues (from ATOM records)
atpasapdtralvadfvgyklrqkgyvcgagpgegpaadplhqamraagdefetrfrrtf
sdlaaqlhvtpgsaqqrftqvsdelfqggpnwgrlvaffvfgaalcaesvnkemevlvgq
vqewmvayletrladwihssggwaeftalygdgaleearrlregnwasvr