Northern blotting is a classical technique that allows the detection of specific nucleic acids using radioactive or non-radioactive probes. Normally, nucleic acids are denatured and separated by agarose or polyacrylamide gel electrophoresis and transferred and fixed to a membrane prior to detection. Here, we describe a method to analyze specific RNA in native ribonucleoprotein complexes using blue native PAGE with subsequent northern blotting, crosslinking of RNA onto a suitable membrane, and detection using non-radioactive probes.
Keywords: Native northern blot; Non-radioactive nucleic acid detection; RNA-binding proteins; Ribonucleoprotein complex.