Chains and heterogens:
PDB Chain Sequences:
>1bx2A (A:) keehviiqaefylnpdqsgefmfdfdgdeifhvdmakketvwrleefgrfasfeaqgala niavdkanleimtkrsnytpitnvppevtvltnspvelrepnvlicfidkftppvvnvtw lrngkpvttgvsetvflpredhlfrkfhylpflpstedvydcrvehwgldepllkhwefd
>1bx2B (B:) trprflwqpkrechffngtervrfldryfynqeesvrfdsdvgefravtelgrpdaeywn sqkdileqaraavdtycrhnygvvesftvqrrvqpkvtvypsktqplqhhnllvcsvsgf ypgsievrwflngqeekagmvstgliqngdwtfqtlvmletvprsgevytcqvehpsvts pltvewrarse
>1bx2D (D:) keehviiqaefylnpdqsgefmfdfdgdeifhvdmakketvwrleefgrfasfeaqgala niavdkanleimtkrsnytpitnvppevtvltnspvelrepnvlicfidkftppvvnvtw lrngkpvttgvsetvflpredhlfrkfhylpflpstedvydcrvehwgldepllkhwefd
>1bx2E (E:) trprflwqpkrechffngtervrfldryfynqeesvrfdsdvgefravtelgrpdaeywn sqkdileqaraavdtycrhnygvvesftvqrrvqpkvtvypsktqplqhhnllvcsvsgf ypgsievrwflngqeekagmvstgliqngdwtfqtlvmletvprsgevytcqvehpsvts pltvewrar