Chains and heterogens:
PDB Chain Sequences:
>1frfL (L:) maeskptpqstftgpivvdpitrieghlrimvevengkvkdawsssqlfrgleiilkgrd prdaqhftqracgvctyvhalassrcvddavkvsipanarmmrnlvmasqylhdhlvhfy hlhaldwvdvtaalkadpnkaaklaasidtartgnsekalkavqdklkafvesgqlgift nayflgghkayylppevnliatahylealhmqvkaasamailggknphtqftvvggcsny qgltkdplanylalskevcqfvnecyipdllavagfykdwggiggtsnylafgefatdds spekhlatsqfpsgvitgrdlgkvdnvdlgaiyedvkyswyapggdgkhpydgvtdpkyt klddkdhyswmkaprykgkamevgplartfiayakgqpdfkkvvdmvlgklsvpatalhs tlgrtaargietaivcanmekwikemadsgakdntlcakwempeeskgvgladaprgsls hwirikgkkidnfqlvvpstwnlgprgpqgdkspveealigtpiadpkrpveilrtvhaf dpciacgvhviepetneilkfkvc
>1frfL (L:) tpqstftgpivvdpitrieghlrimvevengkvkdawsssqlfrgleiilkgrdprdaqh ftqracgvctyvhalassrcvddavkvsipanarmmrnlvmasqylhdhlvhfyhlhald wvdvtaalkadpnkaaklaasidtartgnsekalkavqdklkafvesgqlgiftnayflg ghkayylppevnliatahylealhmqvkaasamailggknphtqftvvggcsnyqgltkd planylalskevcqfvnecyipdllavagfykdwggiggtsnylafgefatddsspekhl atsqfpsgvitgrdlgkvdnvdlgaiyedvkyswyapggdgkhpydgvtdpkytklddkd hyswmkaprykgkamevgplartfiayakgqpdfkkvvdmvlgklsvpatalhstlgrta argietaivcanmekwikemadsgakdntlcakwempeeskgvgladaprgslshwirik gkkidnfqlvvpstwnlgprgpqgdkspveealigtpiadpkrpveilrtvhafdpciac gvh
>1frfS (S:) ltakhrpsvvwlhnaectgcteaairtikpyidalildtisldyqetimaaagetseaal healegkdgyylvvegglptidggqwgmvaghpmietckkaaakakgiicigtcspyggv qkakpnpsqakgvsealgvktinipgcppnpinfvgavvhvltkgipdldengrpklfyg elvhdncprlphfeasefapsfdseeakkgfclyelgckgpvtynncpkvlfnqvnwpvq aghpclgcsepdfwdtmtpfyeqg
>1frfS (S:) khrpsvvwlhnaectgcteaairtikpyidalildtisldyqetimaaagetseaalhea legkdgyylvvegglptidggqwgmvaghpmietckkaaakakgiicigtcspyggvqka kpnpsqakgvsealgvktinipgcppnpinfvgavvhvltkgipdldengrpklfygelv hdncprlphfeasefapsfdseeakkgfclyelgckgpvtynncpkvlfnqvnwpvqagh pclgcsepdfwdtmtpfyeqg