monoclonal antibody or polyclonal antibody? - which is better for ChIP? (Jun/19/2008 )

as my topic.
for ChIP experiment, which is better? monoclonal antibody or polyclonal antibody?

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In general I've found, when screening antibodies, that polyclonals are more likely to work. But of the antibodies that actually do work the monoclonals are often better.

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