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