Chains and heterogens:
PDB Chain Sequences:
>1frvA (A:) ltakkrpsvvylhnaectgcsesllrtvdpyvdelildvismdyhetlmagaghaveeal heaikgdfvcvieggipmgdggywgkvgrrnmydicaevapkakaviaigtcatyggvqa akpnptgtvgvnealgklgvkainiagcppnpmnfvgtvvhlltkgmpeldkqgrpvmff getvhdncprlkhfeagefatsfgspeakkgyclyelgckgpdtynncpkqlfnqvnwpv qaghpciacsepnfwdlyspfysa
>1frvA (A:) akkrpsvvylhnaectgcsesllrtvdpyvdelildvismdyhetlmagaghaveealhe aikgdfvcvieggipmgdggywgkvgrrnmydicaevapkakaviaigtcatyggvqaak pnptgtvgvnealgklgvkainiagcppnpmnfvgtvvhlltkgmpeldkqgrpvmffge tvhdncprlkhfeagefatsfgspeakkgyclyelgckgpdtynncpkqlfnqvnwpvqa ghpciacsepnfwdlyspfysa
>1frvB (B:) msemqgnkivvdpitrieghlrieveveggkiknawsmstlfrglemilkgrdprdaqhf tqracgvctyvhalasvravdncvgvkipenatlmrnltmgaqymhdhlvhfyhlhaldw vnvanalnadpakaarlandlsprkttteslkavqakvkalvesgqlgiftnayflgghp ayvlpaevdliatahylealrvqvkaaramaifgaknphtqftvvggctnydslrperia efrklykevrefieqvyitdllavagfyknwagigktsnfltcgefptdeydlnsrytpq gviwgndlskvddfnpdlieehvkyswyegadahhpykgvtkpkwtefhgedryswmkap rykgeafevgplasvlvayakkheptvkavdlvlktlgvgpealfstlgrtaargiqclt aaqevevwldkleanvkagkddlytdwqyptesqgvgfvnaprgmlshwivqrggkienf qhvvpstwnlgprcaerklsaveqaligtpiadpkrpveilrtvhsydpciacgvh
>1frvB (B:) nkivvdpitrieghlrieveveggkiknawsmstlfrglemilkgrdprdaqhftqracg vctyvhalasvravdncvgvkipenatlmrnltmgaqymhdhlvhfyhlhaldwvnvana lnadpakaarlandlsprkttteslkavqakvkalvesgqlgiftnayflgghpayvlpa evdliatahylealrvqvkaaramaifgaknphtqftvvggctnydslrperiaefrkly kevrefieqvyitdllavagfyknwagigktsnfltcgefptdeydlnsrytpqgviwgn dlskvddfnpdlieehvkyswyegadahhpykgvtkpkwtefhgedryswmkaprykgea fevgplasvlvayakkheptvkavdlvlktlgvgpealfstlgrtaargiqcltaaqeve vwldkleanvkagkddlytdwqyptesqgvgfvnaprgmlshwivqrggkienfqhvvps twnlgprcaerklsaveqaligtpiadpkrpveilrtvhsydpciacgvh
>1frvC (C:) ltakkrpsvvylhnaectgcsesllrtvdpyvdelildvismdyhetlmagaghaveeal heaikgdfvcvieggipmgdggywgkvgrrnmydicaevapkakaviaigtcatyggvqa akpnptgtvgvnealgklgvkainiagcppnpmnfvgtvvhlltkgmpeldkqgrpvmff getvhdncprlkhfeagefatsfgspeakkgyclyelgckgpdtynncpkqlfnqvnwpv qaghpciacsepnfwdlyspfysa
>1frvC (C:) akkrpsvvylhnaectgcsesllrtvdpyvdelildvismdyhetlmagaghaveealhe aikgdfvcvieggipmgdggywgkvgrrnmydicaevapkakaviaigtcatyggvqaak pnptgtvgvnealgklgvkainiagcppnpmnfvgtvvhlltkgmpeldkqgrpvmffge tvhdncprlkhfeagefatsfgspeakkgyclyelgckgpdtynncpkqlfnqvnwpvqa ghpciacsepnfwdlyspfysa
>1frvD (D:) msemqgnkivvdpitrieghlrieveveggkiknawsmstlfrglemilkgrdprdaqhf tqracgvctyvhalasvravdncvgvkipenatlmrnltmgaqymhdhlvhfyhlhaldw vnvanalnadpakaarlandlsprkttteslkavqakvkalvesgqlgiftnayflgghp ayvlpaevdliatahylealrvqvkaaramaifgaknphtqftvvggctnydslrperia efrklykevrefieqvyitdllavagfyknwagigktsnfltcgefptdeydlnsrytpq gviwgndlskvddfnpdlieehvkyswyegadahhpykgvtkpkwtefhgedryswmkap rykgeafevgplasvlvayakkheptvkavdlvlktlgvgpealfstlgrtaargiqclt aaqevevwldkleanvkagkddlytdwqyptesqgvgfvnaprgmlshwivqrggkienf qhvvpstwnlgprcaerklsaveqaligtpiadpkrpveilrtvhsydpciacgvh
>1frvD (D:) nkivvdpitrieghlrieveveggkiknawsmstlfrglemilkgrdprdaqhftqracg vctyvhalasvravdncvgvkipenatlmrnltmgaqymhdhlvhfyhlhaldwvnvana lnadpakaarlandlsprkttteslkavqakvkalvesgqlgiftnayflgghpayvlpa evdliatahylealrvqvkaaramaifgaknphtqftvvggctnydslrperiaefrkly kevrefieqvyitdllavagfyknwagigktsnfltcgefptdeydlnsrytpqgviwgn dlskvddfnpdlieehvkyswyegadahhpykgvtkpkwtefhgedryswmkaprykgea fevgplasvlvayakkheptvkavdlvlktlgvgpealfstlgrtaargiqcltaaqeve vwldkleanvkagkddlytdwqyptesqgvgfvnaprgmlshwivqrggkienfqhvvps twnlgprcaerklsaveqaligtpiadpkrpveilrtvhsydpciacgvh