| Chapter title |
Axon-TRAP-RiboTag: Affinity Purification of Translated mRNAs from Neuronal Axons in Mouse In Vivo
|
|---|---|
| Chapter number | 5 |
| Book title |
RNA Detection
|
| Published in |
Methods in molecular biology, January 2018
|
| DOI | 10.1007/978-1-4939-7213-5_5 |
| Pubmed ID | |
| Book ISBNs |
978-1-4939-7212-8, 978-1-4939-7213-5
|
| Authors |
Toshiaki Shigeoka, Jane Jung, Christine E. Holt, Hosung Jung, Shigeoka, Toshiaki, Jung, Jane, Holt, Christine E., Jung, Hosung |
| Abstract |
Translating ribosome affinity purification (TRAP) is a widely used technique to analyze ribosome-bound mRNAs in particular target cells that express a tagged ribosomal protein. We developed axon-TRAP-RiboTag, a TRAP-based method that allows purification and identification of translated mRNAs from distal neuronal axons in mouse, and identified more than 2000 of translated mRNAs in retinal ganglion cell (RGC) axons in vivo. The use of Cre-negative littermate control to filter out false-positive signals allows unbiased detection, and combining TRAP with in vitro ribosome run-off enables identification of actively translated mRNAs. Here, we describe a detailed protocol to identify translated mRNAs in RGC axons in mouse in vivo. This method can be applied to any neurons whose cell bodies and distal axons are anatomically separated. |
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