>3ccuY (Y:) observed residues (from ATOM records)
telqargltektpdlsdedarlltqrhrvgkpqfnrqdhhkkkrvstswrkprgqlskqr
rgikgkgdtveagfrsptavrgkhpsgfeevrvhnvddlegvdgdteavriaskvgarkr
erieeeaedagirvlnptyvev