作者: Mark Hsieh , Michael Brenowitz
DOI: 10.1016/S0076-6879(96)74038-7
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摘要: Publisher Summary This chapter presents implementation of the quantitative "footprinting" protocols with a commercially available quench-flow apparatus. The kinetics are based on development individual-site binding methods. technique has been conducted member Lac and Gal repressor family bacterial regulatory proteins, Escherichia coli (GalR). thermodynamics DNA by this proteins to specific sequences have extensively characterized. DNase I "footprint" titration developed implement analysis. volumes contributed reaction mixtures from sample loops syringes determined measuring dilution dye that is sequentially loaded into individual components time nuclease exposure protein-DNA-containing solutions physical parameters flow system. rate liquid linear velocity motor cross-sectional area drive syringe.