SELECTIVE PURIFICATION OF RNA AND RNA-BOUND MOLECULAR COMPLEXES

摘要

Disclosed are methods for isolating a target nucleic molecule of interest from a sample. The methods include contacting a sample comprising a target nucleic molecule of interest with at least one single stranded nucleic acid targeting probe comprising a nucleic acid sequence between about 30 nucleotide and the length of the target nucleic acid length that hybridizes to the target nucleic molecule of interest under highly stringent hybridization conditions. The probe comprises a capture moiety covalently linked to one or more nucleotide bases in the probe. The targeting probes can be captured with a specific binding agent that specifically binds the capture moiety, thereby isolating the target nucleic molecule of interest. In some embodiments, the sample is further contacted with a crosslinking agent before contacting the sample with a targeting probe. Thus, complexes formed with the target nucleic acid can also be isolated.