Chains and heterogens:
PDB Chain Sequences:
>1xlkA (A:) svqptpadhftfglwtvgwtgadpfgvatrknldpveavhklaelgaygitfhdndlipf dateaerekilgdfnqalkdtglkvpmvttnlfshpvfkdggftsndrsirrfalakvlh nidlaaemgaetfvmwggregseydgskdlaaaldrmregvdtaagyikdkgynlriale pkpneprgdiflptvghglafieqlehgdivglnpetgheqmaglnfthgiaqalwaekl fhidlngqrgikydqdlvfghgdltsafftvdllengfpnggpkytgprhfdykpsrtdg ydgvwdsakanmsmylllkeralafradpevqeamktsgvfelgettlnagesaadlmnd sasfagfdaeaaaernfafirlnqlaiehllgsr
>1xlkA (A:) vqptpadhftfglwtvgwtgadpfgvatrknldpveavhklaelgaygitfhdndlipfd ateaerekilgdfnqalkdtglkvpmvttnlfshpvfkdggftsndrsirrfalakvlhn idlaaemgaetfvmwggregseydgskdlaaaldrmregvdtaagyikdkgynlrialep kpneprgdiflptvghglafieqlehgdivglnpetgheqmaglnfthgiaqalwaeklf hidlngqrgikydqdlvfghgdltsafftvdllengfpnggpkytgprhfdykpsrtdgy dgvwdsakanmsmylllkeralafradpevqeamktsgvfelgettlnagesaadlmnds asfagfdaeaaaernfafirlnqlaiehllgsr
>1xlkB (B:) svqptpadhftfglwtvgwtgadpfgvatrknldpveavhklaelgaygitfhdndlipf dateaerekilgdfnqalkdtglkvpmvttnlfshpvfkdggftsndrsirrfalakvlh nidlaaemgaetfvmwggregseydgskdlaaaldrmregvdtaagyikdkgynlriale pkpneprgdiflptvghglafieqlehgdivglnpetgheqmaglnfthgiaqalwaekl fhidlngqrgikydqdlvfghgdltsafftvdllengfpnggpkytgprhfdykpsrtdg ydgvwdsakanmsmylllkeralafradpevqeamktsgvfelgettlnagesaadlmnd sasfagfdaeaaaernfafirlnqlaiehllgsr
>1xlkB (B:) vqptpadhftfglwtvgwtgadpfgvatrknldpveavhklaelgaygitfhdndlipfd ateaerekilgdfnqalkdtglkvpmvttnlfshpvfkdggftsndrsirrfalakvlhn idlaaemgaetfvmwggregseydgskdlaaaldrmregvdtaagyikdkgynlrialep kpneprgdiflptvghglafieqlehgdivglnpetgheqmaglnfthgiaqalwaeklf hidlngqrgikydqdlvfghgdltsafftvdllengfpnggpkytgprhfdykpsrtdgy dgvwdsakanmsmylllkeralafradpevqeamktsgvfelgettlnagesaadlmnds asfagfdaeaaaernfafirlnqlaiehllgsr