Reference: Liu X, et al. (2005) DIP-chip: rapid and accurate determination of DNA-binding specificity. Genome Res 15(3):421-7

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Abstract


We have developed a new method for determining the DNA-binding specificity of proteins. In DIP-chip (DNA immunoprecipitation with microarray detection), protein.DNA complexes are isolated from an in vitro mixture of purified protein and naked genomic DNA. Whole-genome DNA microarrays are used to identify the protein-bound DNA fragments, and the sequence of the identified fragments is used to derive binding-site descriptions. Using objective criteria for assessing the accuracy of DNA-binding motifs, and using yeast Leu3p as a model, we demonstrate that motifs determined by DIP-chip are as effective at predicting the location of bound proteins in vivo as are motifs determined by conventional low-throughput in vitro methods.

Reference Type
Journal Article | Research Support, U.S. Gov't, P.H.S.
Authors
Liu X, Noll DM, Lieb JD, Clarke ND
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