Chains and heterogens:
PDB Chain Sequences:
>1mxcA (A:) akhlftsesvseghpdkiadqisdavldaileqdpkarvacetyvktgmvlvggeittsa wvdieeitrntvreigyvhsdmgfdanscavlsaigkqspdinqgvdradpleqgagdqg lmfgyatnetdvlmpapityahrlvqrqaevrkngtlpwlrpdaksqvtfqyddgkivgi davvlstqhseeidqkslqeavmeeiikpilpaewltsatkffinptgrfviggpmgdcg ltgrkiivdtyggmarhgggafsgkdpskvdrsaayaaryvaknivaagladrceiqvsy aigvaeptsimvetfgtekvpseqltllvreffdlrpygliqmldllhpiyketaayghf grehfpwektdkaqllrdaaglk
>1mxcA (A:) akhlftsesvseghpdkiadqisdavldaileqdpkarvacetyvktgmvlvggeittsa wvdieeitrntvreigyvhsdmgfdanscavlsaigkqspdiradpleqgagdqglmfgy atnetdvlmpapityahrlvqrqaevrkngtlpwlrpdaksqvtfqyddgkivgidavvl stqhseeidqkslqeavmeeiikpilpaewltsatkffinptgrfviggpmgdcgltgrk iivdtyggmarhgggafsgkdpskvdrsaayaaryvaknivaagladrceiqvsyaigva eptsimvetfgtekvpseqltllvreffdlrpygliqmldllhpiyketaayghfgrehf pwektdkaqllrdaaglk