Chapter title |
Profiling Locally Translated mRNAs in Regenerating Axons.
|
---|---|
Book title |
Axon Regeneration
|
Published in |
Methods in molecular biology, January 2023
|
DOI | 10.1007/978-1-0716-3012-9_8 |
Pubmed ID | |
Book ISBNs |
978-1-07-163011-2, 978-1-07-163012-9
|
Authors |
Sahoo, Pabitra K, Twiss, Jeffery L, Sahoo, Pabitra K., Twiss, Jeffery L. |
Abstract |
Spatial and temporal regulation of protein expression plays important roles in many cellular functions, particularly for highly polarized cell types. While the subcellular proteome can be altered by relocalizing proteins from other domains of the cell, transporting mRNAs to subcellular domains provides a means to locally synthesize new proteins in response to different stimuli. Localized protein synthesis is a critical mechanism in neurons that extend dendrites and axons long distances from their cell bodies. Here, we discuss methodologies that have been developed to study localized protein synthesis using axonal protein synthesis as an example. We provide an in-depth method using dual fluorescence recovery after photobleaching to visualize sites of protein synthesis using reporter cDNAs that encode two different localizing mRNAs along with diffusion-limited fluorescent reporter proteins. We show how this method can be used to determine how extracellular stimuli and different physiological states can alter the specificity of local mRNA translation in real time. |
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