We present experimental approaches for studying RNA-interactors of double-stranded RNA binding protein kinase RNA-activated (PKR) during the mammalian cell cycle using HeLa cells. This method utilizes formaldehyde to crosslink RNA-PKR complexes and immunoprecipitation to enrich PKR-bound RNAs. These RNAs can be further analyzed through high-throughput sequencing or qRT-PCR.
Kim, S., Kang, M., Kim, Y. Studying RNA Interactors of Protein Kinase RNA-Activated during the Mammalian Cell Cycle. J. Vis. Exp. (145), e59215, doi:10.3791/59215 (2019).