Chapter title |
WGADseq: Whole Genome Affinity Determination of Protein-DNA Binding Sites
|
---|---|
Chapter number | 5 |
Book title |
The Bacterial Nucleoid
|
Published in |
Methods in molecular biology, January 2017
|
DOI | 10.1007/978-1-4939-7098-8_5 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7097-1, 978-1-4939-7098-8
|
Authors |
Mickaël Poidevin, Elisa Galli, Yoshiharu Yamaichi, François-Xavier Barre, Poidevin, Mickaël, Galli, Elisa, Yamaichi, Yoshiharu, Barre, François-Xavier |
Abstract |
We present a method through which one may monitor the relative binding affinity of a given protein to DNA motifs on the scale of a whole genome. Briefly, the protein of interest is incubated with fragmented genomic DNA and then affixed to a column. Washes with buffers containing low salt concentrations will remove nonbound DNA fragments, while stepwise washes with increasing salt concentrations will elute more specifically bound fragments. Massive sequencing is used to identify eluted DNA fragments and map them on the genome, which permits us to classify the different binding sites according to their affinity and determine corresponding consensus motifs (if any). |
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