>1xlkA (A:) observed residues (from ATOM records)
vqptpadhftfglwtvgwtgadpfgvatrknldpveavhklaelgaygitfhdndlipfd
ateaerekilgdfnqalkdtglkvpmvttnlfshpvfkdggftsndrsirrfalakvlhn
idlaaemgaetfvmwggregseydgskdlaaaldrmregvdtaagyikdkgynlrialep
kpneprgdiflptvghglafieqlehgdivglnpetgheqmaglnfthgiaqalwaeklf
hidlngqrgikydqdlvfghgdltsafftvdllengfpnggpkytgprhfdykpsrtdgy
dgvwdsakanmsmylllkeralafradpevqeamktsgvfelgettlnagesaadlmnds
asfagfdaeaaaernfafirlnqlaiehllgsr