Chains and heterogens:
PDB Chain Sequences:
>7nt3A (A:) sgfrkmafpsgkvegcmvqvtcgtttlnglwlddvvycprhvictsedmlnpnyedllir ksnhnflvqagnvqlrvighsmqncvlklkvdtanpktpkykfvriqpgqtfsvlacyng spsgvyqcamrpnftikgsflngscgsvgfnidydcvsfcymhhmelptgvhagtdlegn fygpfvdrqtaqaagtdttitvnvlawlyaavingdrwflnrftttlndfnlvamkynye pltqdhvdilgplsaqtgiavldmcaslkellqngmngrtilgsalledeftpfdvvrqc sgvtfq
>7nt3A (A:) sgfrkmafpsgkvegcmvqvtcgtttlnglwlddvvycprhvictsedmlnpnyedllir ksnhnflvqagnvqlrvighsmqncvlklkvdtanpktpkykfvriqpgqtfsvlacyng spsgvyqcamrpnftikgsflngscgsvgfnidydcvsfcymhhmelptgvhagtdlegn fygpfvdrqtaqaagtdttitvnvlawlyaavingdrwflnrftttlndfnlvamkynye pltqdhvdilgplsaqtgiavldmcaslkellqngmngrtilgsalledeftpfdvvrqc sgvtf
>7nt3B (B:) sgfrkmafpsgkvegcmvqvtcgtttlnglwlddvvycprhvictsedmlnpnyedllir ksnhnflvqagnvqlrvighsmqncvlklkvdtanpktpkykfvriqpgqtfsvlacyng spsgvyqcamrpnftikgsflngscgsvgfnidydcvsfcymhhmelptgvhagtdlegn fygpfvdrqtaqaagtdttitvnvlawlyaavingdrwflnrftttlndfnlvamkynye pltqdhvdilgplsaqtgiavldmcaslkellqngmngrtilgsalledeftpfdvvrqc sgvtfq
>7nt3B (B:) sgfrkmafpsgkvegcmvqvtcgtttlnglwlddvvycprhvictsedmlnpnyedllir ksnhnflvqagnvqlrvighsmqncvlklkvdtanpktpkykfvriqpgqtfsvlacyng spsgvyqcamrpnftikgsflngscgsvgfnidydcvsfcymhhmelptgvhagtdlegn fygpfvdrqtaqaagtdttitvnvlawlyaavingdrwflnrftttlndfnlvamkynye pltqdhvdilgplsaqtgiavldmcaslkellqngmngrtilgsalledeftpfdvvrqc sg