Chains and heterogens:
PDB Chain Sequences:
>2bifA (A:) cptlivmvglpargktyiskkltrylnfigvptrefnvgqyrrdmvktyksfefflpdne eglkirkqcalaalndvrkflseegghvavfdatnttrerramifnfgeqngyktffves icvdpeviaanivqvklgspdyvnrdsdeatedfmrriecyensyesldeeqdrdlsyik imdvgqsyvvnrvadhiqsrivyylmnihvtprsiylcrageselnlkgriggdpglspr grefskhlaqfisdqnikdlkvftsqmkrtiqtaealsvpyeqfkvlneidagvceemty eeiqdhyplefalrdqdkyryrypkgesyedlvqrlepvimelerqenvlvichqavmrc llayfldkaaeelpylkcplhtvlkltpvaygckvesiflnvaavnthrdrpqnvdisrp seealvtvpahq
>2bifB (B:) cptlivmvglpargktyiskkltrylnfigvptrefnvgqyrrdmvktyksfefflpdne eglkirkqcalaalndvrkflseegghvavfdatnttrerramifnfgeqngyktffves icvdpeviaanivqvklgspdyvnrdsdeatedfmrriecyensyesldeeqdrdlsyik imdvgqsyvvnrvadhiqsrivyylmnihvtprsiylcrageselnlkgriggdpglspr grefskhlaqfisdqnikdlkvftsqmkrtiqtaealsvpyeqfkvlneidagvceemty eeiqdhyplefalrdqdkyryrypkgesyedlvqrlepvimelerqenvlvichqavmrc llayfldkaaeelpylkcplhtvlkltpvaygckvesiflnvaavnthrdrpqnvdisrp seealvtvpahq