Fluorescent and photo-oxidizing TimeSTAMP tags track protein fates in light and electron microscopy

Margaret T. Butko, Jin Yang, Yang Geng, Hyung Joon Kim, Noo Li Jeon, Xiaokun Shu, Mason R. MacKey, Mark H. Ellisman, Roger Y. Tsien, Michael Z. Lin

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Protein synthesis is highly regulated throughout nervous system development, plasticity and regeneration. However, tracking the distributions of specific new protein species has not been possible in living neurons or at the ultrastructural level. Previously we created TimeSTAMP epitope tags, drug-controlled tags for immunohistochemical detection of specific new proteins synthesized at defined times. Here we extend TimeSTAMP to label new protein copies by fluorescence or photo-oxidation. Live microscopy of a fluorescent TimeSTAMP tag reveals that copies of the synaptic protein PSD95 are synthesized in response to local activation of growth factor and neurotransmitter receptors, and preferentially localize to stimulated synapses in rat neurons. Electron microscopy of a photo-oxidizing TimeSTAMP tag reveals new PSD95 at developing dendritic structures of immature neurons and at synapses in differentiated neurons. These results demonstrate the versatility of the TimeSTAMP approach for visualizing newly synthesized proteins in neurons.

Original languageEnglish (US)
Pages (from-to)1742-1751
Number of pages10
JournalNature Neuroscience
Volume15
Issue number12
DOIs
StatePublished - Dec 1 2012

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Electron Microscopy
Light
Neurons
Proteins
Synapses
Neurotransmitter Receptor
Growth Factor Receptors
Nervous System
Epitopes
Regeneration
Microscopy
Fluorescence
Pharmaceutical Preparations

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Fluorescent and photo-oxidizing TimeSTAMP tags track protein fates in light and electron microscopy. / Butko, Margaret T.; Yang, Jin; Geng, Yang; Kim, Hyung Joon; Jeon, Noo Li; Shu, Xiaokun; MacKey, Mason R.; Ellisman, Mark H.; Tsien, Roger Y.; Lin, Michael Z.

In: Nature Neuroscience, Vol. 15, No. 12, 01.12.2012, p. 1742-1751.

Research output: Contribution to journalArticle

Butko, MT, Yang, J, Geng, Y, Kim, HJ, Jeon, NL, Shu, X, MacKey, MR, Ellisman, MH, Tsien, RY & Lin, MZ 2012, 'Fluorescent and photo-oxidizing TimeSTAMP tags track protein fates in light and electron microscopy', Nature Neuroscience, vol. 15, no. 12, pp. 1742-1751. https://doi.org/10.1038/nn.3246
Butko, Margaret T. ; Yang, Jin ; Geng, Yang ; Kim, Hyung Joon ; Jeon, Noo Li ; Shu, Xiaokun ; MacKey, Mason R. ; Ellisman, Mark H. ; Tsien, Roger Y. ; Lin, Michael Z. / Fluorescent and photo-oxidizing TimeSTAMP tags track protein fates in light and electron microscopy. In: Nature Neuroscience. 2012 ; Vol. 15, No. 12. pp. 1742-1751.
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