>2ak4U (U:) observed residues (from ATOM records) gvtqtpkfqvlktgqsmtlqcaqdmnhnsmywyrqdpgmglrliyysasegttdkgevpn gynvsrlnkrefslrlesaapsqtsvyfcaspglaeqyfgpgtrltvtedlknvfppeva vfepseaeishtqkatlvclatgfypdhvelswwvngkevhsgvctdpqplkeqpalnds ryalssrlrvsatfwqnprnhfrcqvqfyglsendewtqdrakpvtqivsaeawgrad