Chains and heterogens:
PDB Chain Sequences:
>4btmA (A:) mhhhhhhssgvdlgtenlyfqsnamqclaaalkdetnmsgggeqadilpanyvvkdrwkv lkkiggggfgeiyeamdlltrenvalkvesaqqpkqvlkmevavlkklqgkdhvcrfigc grnekfnyvvmqlqgrnladlrrsqprgtftlsttlrlgkqilesieaihsvgflhrdik psnfamgrlpstyrkcymldfglarqytnttgdvrpprnvagfrgtvryasvnahknrem grhddlwslfymlvefavgqlpwrkikdkeqvgmikekyehrmllkhmpsefhlfldhia sldyftkpdyqlimsvfensmkergiaeneafdweka
>4btmA (A:) adilpanyvvkdrwkvlkkiggggfgeiyeamdlltrenvalkvesaqqpkqvlkmevav lkklqgkdhvcrfigcgrnekfnyvvmqlqgrnladlrrsqprgtftlsttlrlgkqile sieaihsvgflhrdikpsnfamgrlpstyrkcymldfglarqytnttgdvrpprnvagfr gtvryasvnahknremgrhddlwslfymlvefavgqlpwrkikdkeqvgmikekyehrml lkhmpsefhlfldhiasldyftkpdyqlimsvfensmkergiaeneafdwek
>4btmB (B:) mhhhhhhssgvdlgtenlyfqsnamqclaaalkdetnmsgggeqadilpanyvvkdrwkv lkkiggggfgeiyeamdlltrenvalkvesaqqpkqvlkmevavlkklqgkdhvcrfigc grnekfnyvvmqlqgrnladlrrsqprgtftlsttlrlgkqilesieaihsvgflhrdik psnfamgrlpstyrkcymldfglarqytnttgdvrpprnvagfrgtvryasvnahknrem grhddlwslfymlvefavgqlpwrkikdkeqvgmikekyehrmllkhmpsefhlfldhia sldyftkpdyqlimsvfensmkergiaeneafdweka
>4btmB (B:) adilpanyvvkdrwkvlkkiggggfgeiyeamdlltrenvalkvesaqqpkqvlkmevav lkklqgkdhvcrfigcgrnekfnyvvmqlqgrnladlrrsqprgtftlsttlrlgkqile sieaihsvgflhrdikpsnfamgrlpstyrkcymldfglarqytnttgdvrpprnvagfr gtvryasvnahknremgrhddlwslfymlvefavgqlpwrkikdkeqvgmikekyehrml lkhmpsefhlfldhiasldyftkpdyqlimsvfensmkergiaeneafdweka