Reference: Holland S, et al. (2005) Comparison of Dam tagging and chromatin immunoprecipitation as tools for the identification of the binding sites for S. pombe CENP-C. Chromosome Res 13(1):73-83

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Abstract


We have established the identity of the Schizosaccharomyces pombe homologue of vertebrate CENP-C and Saccharomyces cerevisiae MIF2p and have used it to compare Dam tagging and chromatin immunoprecipitation (ChiP)as tools for the mapping of protein binding sites on DNA. ChiP shows that S. pombe CENP-C binds to the central core and inner repeats of the S. pombe centromere. It binds weakly, however, to the outer repeats. The binding pattern is thus similar to that of S. pombe CENP-A. Dam-tagged S. pombe CENP-C, however, methylates the entire centromere and 5 kb of flanking DNA. This comparison suggests that Dam tagging is less precise as a tool for mapping DNA binding sites than ChiP. We have also used the Dam tagging technique to address the question of whether there is any CENP-C binding to the ribosomal DNA in S. pombe and find none.

Reference Type
Comparative Study | Journal Article | Research Support, Non-U.S. Gov't
Authors
Holland S, Ioannou D, Haines S, Brown WR
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