Protocols for protein-DNA binding analysis of a zinc finger transcription factor bound to its cognate promoter.

Lana C Ly, Yang Yang, Fudong Li, Merlin Crossley, Yunyu Shi, Kate G R Quinlan

STAR protocols 2022 Sep 16

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Here, we describe protocols to interrogate the binding of the zinc fingers of the transcription factor ZBTB7A to the fetal γ-globin (HBG) promoter. We detail the steps for performing electrophoretic mobility shift assays (EMSAs), X-ray crystallography, and isothermal titration calorimetry (ITC) to explore this interaction. These techniques could readily be applied to the structural studies of other zinc finger transcription factors and cognate DNA sequences. For complete details on the use and execution of this protocol, please refer to Yang et al. (2021). © 2022 The Author(s).

Citation

Lana C Ly, Yang Yang, Fudong Li, Merlin Crossley, Yunyu Shi, Kate G R Quinlan. Protocols for protein-DNA binding analysis of a zinc finger transcription factor bound to its cognate promoter. STAR protocols. 2022 Sep 16;3(3):101598