Identification of target mRNAs of regulatory RNA-binding proteins using mRNP immunopurification and microarrays
Mayka Sanchez1, Bruno Galy, Matthias W Hentze
1Molecular Medicine Partnership Unit (MMPU), Im Neuenheimer Feld 153, 69120 Heidelberg, Germany.
Nature Protocols
|August 19, 2007
Abstract:
RNA-binding proteins (RBPs) frequently regulate the post-transcriptional fate of target mRNAs. To identify novel target mRNAs of RBPs, we incubate total RNA with recombinant RBP and immunoselect the messenger-ribonucleoproteins using a specific anti-RBP antibody. The mRNA composition of the supernatant and/or immunoprecipitated fraction is analyzed using dual-color microarrays in comparison with control reaction. From start to finish, the protocol takes approximately 6 d.


