>4cmyU (U:) observed residues (from ATOM records) mlsktildklnhqvnfeaasahlylqmsawlltqsldstaaffrahaeeekahmmklfdy inetgslaligevatpapewkshielleaaynhelaitqsindlvdtalrekdystfqfl qwyvaeqheeeylfssmlhkariintmdgralfrfdeevrksvl