part_of part of part of immunoprecipitation assay nucleic acid library construction protocol RIP RNA immunoprecipitation RNA-IP http://en.wikipedia.org/wiki/Immunoprecipitation RNA Immunoprecipitation (RIP) is an experimental process used to investigate the interaction between proteins and RNA in the cell via the immunoprecipitation with an antibody that targets the protein of interest. By isolating the protein, the RNA will also be isolated as it is bound to the protein. The purified RNA-protein complexes can be separated by performing an RNA extraction and the identity of the RNA can be determined by cDNA sequencing or RT-PCR. Natalja Kurbatova