Chains and heterogens:
PDB Chain Sequences:
>1bxtA (A:) ssqpdptpeqlnkssqftgvmgnlrclydnhfvegtnvrstgqllqhdlifpikdlklkn ydsvktefnskdlatkyknkdvdifgsnyyyncyysegnscknakktcmyggvtehhrnq iegkfpnitvkvyednenilsfdittnkkqvtvqeldcktrkilvsrknlyefnnspyet gyikfiessgdsfwydmmpapgaifdqskylmlyndnktvsssaiaievhltkk
>1bxtA (A:) ssqpdptpeqlnkssqftgvmgnlrclydnhfvegtnvrstgqllqhdlifpikdlklkn ydsvktefnskdlatkyknkdvdifgsnyyyncktcmyggvtehhrnqiegkfpnitvkv yednenilsfdittnkkqvtvqeldcktrkilvsrknlyefnnspyetgyikfiessgds fwydmmpapgaifdqskylmlyndnktvsssaiaievhltkk
>1bxtB (B:) ssqpdptpeqlnkssqftgvmgnlrclydnhfvegtnvrstgqllqhdlifpikdlklkn ydsvktefnskdlatkyknkdvdifgsnyyyncyysegnscknakktcmyggvtehhrnq iegkfpnitvkvyednenilsfdittnkkqvtvqeldcktrkilvsrknlyefnnspyet gyikfiessgdsfwydmmpapgaifdqskylmlyndnktvsssaiaievhltkk
>1bxtB (B:) ssqpdptpeqlnkssqftgvmgnlrclydnhfvegtnvrstgqllqhdlifpikdlklkn ydsvktefnskdlatkyknkdvdifgsnyyyncyyktcmyggvtehhrnqiegkfpnitv kvyednenilsfdittnkkqvtvqeldcktrkilvsrknlyefnnspyetgyikfiessg dsfwydmmpapgaifdqskylmlyndnktvsssaiaievhltkk