Chains and heterogens:
PDB Chain Sequences:
>3an4A (A:) gshmaeissdidqlnpesadlralakhlydsyiksfpltkakarailtgkttdkspfviy dmnslmmgedkikfkhitplqeqskevairifqgcqfrsveavqeiteyaksipgfvnld lndqvtllkygvheiiytmlaslmnkdgvlisegqgfmtreflkslrkpfgdfmepkfef avkfnalelddsdlaifiaviilsgdrpgllnvkpiediqdnllqalelqlklnhpessq lfakllqkmtdlrqivtehvqllqvikktetdmslhpllqeiykdl
>3an4A (A:) npesadlralakhlydsyiksfpltkakarailtgkttdkspfviydmnslmmgedkiks kevairifqgcqfrsveavqeiteyaksipgfvnldlndqvtllkygvheiiytmlaslm nkdgvlisegqgfmtreflkslrkpfgdfmepkfefavkfnalelddsdlaifiaviils gdrpgllnvkpiediqdnllqalelqlklnhpessqlfakllqkmtdlrqivtehvqllq vikktetdmslhpllqeiykdl
>3an4B (B:) gshmaeissdidqlnpesadlralakhlydsyiksfpltkakarailtgkttdkspfviy dmnslmmgedkikfkhitplqeqskevairifqgcqfrsveavqeiteyaksipgfvnld lndqvtllkygvheiiytmlaslmnkdgvlisegqgfmtreflkslrkpfgdfmepkfef avkfnalelddsdlaifiaviilsgdrpgllnvkpiediqdnllqalelqlklnhpessq lfakllqkmtdlrqivtehvqllqvikktetdmslhpllqeiykdl
>3an4B (B:) pesadlralakhlydsyiksfpltkakarailtgktspfviydmnslmmgedkikfkhke vairifqgcqfrsveavqeiteyaksipgfvnldlndqvtllkygvheiiytmlaslmnk dgvlisegqgfmtreflkslrkpfgdfmepkfefavkfnalelddsdlaifiaviilsgd rpgllnvkpiediqdnllqalelqlklnhpessqlfakllqkmtdlrqivtehvqllqvi kktetdmslhpllqeiy