>1xjaB (B:) observed residues (from ATOM records) fnahlvagltpieangvldffidrplgmkgyilnltirgqgvvknqgrefvcrpgdillf ppgeihhygrhpearewyhqwvyfrpraywhewlnwpsifantgffrpdeahqphfsdlf gqiinagqgegrysellainlleqlllrrmeain