Journal
OPEN BIOLOGY
Volume 8, Issue 10, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rsob.180104
Keywords
RNA labelling; mRNAs; noncoding RNAs; post-transcriptional gene regulation; ribonucleoprotein complexes
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Funding
- National Institute on Aging Intramural Research Program, National Institutes of Health
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RNA tracking allows researchers to visualize RNA molecules in cells and tissues, providing important spatio-temporal information regarding RNA dynamics and function. Methods such as fluorescent in situ hybridization (FISH) and molecular beacons rely on complementary oligonucleotides to label and view endogenous transcripts. Other methods create artificial chimeric transcripts coupled with bacteriophage-derived coat proteins (e.g. MS2, lambda N) to tag molecules in live cells. In other approaches, endogenous RNAs are recognized by complementary RNAs complexed with noncatalytic Cas proteins. Each technique has its own set of strengths and limitations that must be considered when planning an experiment. Here, we discuss the mechanisms, advantages, and weaknesses of in situ hybridization, molecular beacons, MS2 tagging and Cas-derived systems, as well as how RNA tracking can be employed to study various aspects of molecular biology.
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