Direct Measurements of Transcription Factor Binding and Dissociation at Individual Chromosomal Operators

• I will discuss some of our recent progress in studying transcription factor kinetics at the level of individual molecules in E. coli. I will in particular describe an assay for measuring the rate of dissociation for a LacI repressor from an individual chromosomal operator site. When combined with the corresponding association rate measurement, the assay allows us to test the commonly used assumption that TF kinetics can be considered to be at equilibrium and that the gene expression is proportional to the time the operator is free .

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NATURVETENSKAP  -- Biologi -- Biofysik (hsv//swe)

NATURAL SCIENCES  -- Biological Sciences -- Biophysics (hsv//eng)

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