1TFI:
reference: Novel zinc finger motif in the basal transcriptional machinery: three-dimensional NMR studies of the nucleic acid binding domain of transcriptional elongation factor TFIIS., Qian X, Gozani SN, Yoon H, Jeon CJ, Agarwal K, Weiss MA, Biochemistry 1993 Sep 28;32(38):9944-59. PMID: 8399164

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