Ultraviolet photochemical cross-linking to detect RNA-binding proteins
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Cold Spring Harbor Protocols
|December 4, 2013
Abstract:
RNA is photoreactive on exposure to ultraviolet (UV) light in the 250- to 270-nm range. On UV treatment, RNA bases absorb energy to generate free radicals that can covalently attach to nearby amino acid residues in RNA-bound proteins. UV cross-linking experiments have been extensively used to identify and characterize RNA-binding proteins. The method described here involves the use of (32)P-labeled RNA and crude extracts or purified proteins.

