>4ptxB (B:) observed residues (from ATOM records) iifpedfiwgaatssyqiegafnedgkgesiwdrfshtpgkiengdtgdiacdhyhlyre dielmkeigirsyrfstswprilpegkgrvnqkgldfykrlvdnllkanirpmitlyhwd lpqalqdkggwtnrdtakyfaeyarlmfeefnglvdlwvthnepwvvafeghafgnhapg tkdfktalqvahhlllshgmavdifreedlpgeigitlnltpaypagdsekdvkaaslld dyinawflspvfkgsypeelhhiyeqnlgafttqpgdmdiisrdidflginyysrmvvrh kpgdnlfnaevvkmedrpstemgweiypqglydilvrvnkeytdkplyitengaafddkl teegkihdekrinylgdhfkqaykalkdgvplrgyyvwslmdnfewaygyskrfgliyvd yengnrrflkdsalwyreviekgqv