Ribotrap : targeted purification of RNA-specific RNPs from cell lysates through immunoaffinity precipitation to identify regulatory proteins and RNAs.

Journal Article (Journal Article)

Many elegant methodologies have been devised to explore RNA-protein as well as RNA-RNA interactions. Although the characterization of messages targeted by a specific RNA-binding protein (RBP) has been accelerated by the application of microarray technologies, reliable methods to describe the endogenous assembly of ribonucleoproteins (RNPs) are needed. However, this approach requires the targeted purification of a select mRNA under conditions favorable for the copurification of associated factors including RNA and protein components of the RNP. This chapter describes previous methods used to characterize RNPs in the context of in vitro approaches and presents the Ribotrap methodology, an in vivo protocol for message-specific purification of a target RNP. The method was developed in a yeast model system, yet is amenable to other in vivo cell systems including mammalian cell culture.

Full Text

Duke Authors

Cited Authors

  • Beach, DL; Keene, JD

Published Date

  • 2008

Published In

Volume / Issue

  • 419 /

Start / End Page

  • 69 - 91

PubMed ID

  • 18369976

International Standard Serial Number (ISSN)

  • 1064-3745

Digital Object Identifier (DOI)

  • 10.1007/978-1-59745-033-1_5


  • eng

Conference Location

  • United States