Chains and heterogens:
PDB Chain Sequences:
>2fbmA (A:) mgsshhhhhhssglvprgsstyrdivvkkedgftqivlstrsteknalntevikeivnal nsaaaddsklvlfsaagsvfccgldfgyfvkhlrnnrntaslemvdtiknfvntfiqfkk pivvsvngpaiglgasilplcdlvwanekawfqtpyttfgqspdgcssitfpkmmgkasa nemliagrkltareacakglvsqvfltgtftqevmiqikelasynpivleeckalvrcni kleleqanerecevlrkiwssaqgiesmlkipllgykaafpprktqndqrw
>2fbmA (A:) tyrdivvkkedgftqivlstrsteknalntevikeivnalnsaaaddsklvlfsaagsvf ccgldfgyfvkhlrnnrntaslemvdtiknfvntfiqfkkpivvsvngpaiglgasilpl cdlvwanekawfqtpyttfgqspdgcssitfpkmmgkasanemliagrkltareacakgl vsqvfltgtftqevmiqikelasynpivleeckalvrcnikleleqanerecevlrkiws saqgiesmlki
>2fbmB (B:) mgsshhhhhhssglvprgsstyrdivvkkedgftqivlstrsteknalntevikeivnal nsaaaddsklvlfsaagsvfccgldfgyfvkhlrnnrntaslemvdtiknfvntfiqfkk pivvsvngpaiglgasilplcdlvwanekawfqtpyttfgqspdgcssitfpkmmgkasa nemliagrkltareacakglvsqvfltgtftqevmiqikelasynpivleeckalvrcni kleleqanerecevlrkiwssaqgiesmlkipllgykaafpprktqndqrw
>2fbmB (B:) yrdivvkkedgftqivlstrsteknalntevikeivnalnsaaaddsklvlfsaagsvfc cgldfgyfvkhlrnnrntaslemvdtiknfvntfiqfkkpivvsvngpaiglgasilplc dlvwanekawfqtpyttfgqspdgcssitfpkmmgkasanemliagrkltareacakglv sqvfltgtftqevmiqikelasynpivleeckalvrcnikleleqanerecevlrkiwss aqgiesmlki
>2fbmC (C:) mgsshhhhhhssglvprgsstyrdivvkkedgftqivlstrsteknalntevikeivnal nsaaaddsklvlfsaagsvfccgldfgyfvkhlrnnrntaslemvdtiknfvntfiqfkk pivvsvngpaiglgasilplcdlvwanekawfqtpyttfgqspdgcssitfpkmmgkasa nemliagrkltareacakglvsqvfltgtftqevmiqikelasynpivleeckalvrcni kleleqanerecevlrkiwssaqgiesmlkipllgykaafpprktqndqrw
>2fbmC (C:) yrdivvkkedgftqivlstrsteknalntevikeivnalnsaaaddsklvlfsaagsvfc cgldfgyfvkhlrnnrntaslemvdtiknfvntfiqfkkpivvsvngpaiglgasilplc dlvwanekawfqtpyttfgqspdgcssitfpkmmgkasanemliagrkltareacakglv sqvfltgtftqevmiqikelasynpivleeckalvrcnikleleqanerecevlrkiwss aqgiesmlki