Chains and heterogens:
PDB Chain Sequences:
>1mx2A (A:) maepwgnelasaaargdleqltsllqnnvnvnaqngfgrtalqvmklgnpeiarrlllrg anpdlkdrtgnavihdaaragfldtlqtllefqadvniednegnlplhlaakeghlrvve flvkhtasnvghrnhkgdtacdlarlygrnevvslmqangaggatnlq
>1mx2A (A:) wgnelasaaargdleqltsllqnnvnvnaqngfgrtalqvmklgnpeiarrlllrganpd lkdrtgnavihdaaragfldtlqtllefqadvniednegnlplhlaakeghlrvveflvk htasnvghrnhkgdtacdlarlygrnevvslmqang
>1mx2B (B:) maepwgnelasaaargdleqltsllqnnvnvnaqngfgrtalqvmklgnpeiarrlllrg anpdlkdrtgnavihdaaragfldtlqtllefqadvniednegnlplhlaakeghlrvve flvkhtasnvghrnhkgdtacdlarlygrnevvslmqangaggatnlq
>1mx2B (B:) nelasaaargdleqltsllqnnvnvnaqngfgrtalqvmklgnpeiarrlllrganpdlk drtgnavihdaaragfldtlqtllefqadvniednegnlplhlaakeghlrvveflvkht asnvghrnhkgdtacdlarlygrnevvslmqangag