>4y1gA (A:) observed residues (from ATOM records)
tkkvaiilanefedinysspkealenagfntvvigdtansevvgkhgekvtvdvgiaeak
pedydallipggfspdhlrgdtegrygtfakyftkndvptfaichgpqilidtddlkgrt
ltavlnvrkdlsnagahvvdesvvvdnnivtsrvpddlddfnreivkqlql