期刊
PROTEOMICS
卷 12, 期 15-16, 页码 2464-2476出版社
WILEY-BLACKWELL
DOI: 10.1002/pmic.201200112
关键词
Animal proteomics; BONCAT; Click chemistry; Dopaminergic signaling; Local protein synthesis; Metabolic labeling; MUDPIT
资金
- German Academy for Natural Scientists Leopoldina
- DFG
- NIH [5R01GM62523-9]
- HHMI
- Gordon and Betty Moore Foundation
- Beckman Institute
Local protein synthesis and its activity-dependent modulation via dopamine receptor stimulation play an important role in synaptic plasticity allowing synapses to respond dynamically to changes in their activity patterns. We describe here the metabolic labeling, enrichment, and MS-based identification of candidate proteins specifically translated in intact hippocampal neuropil sections upon treatment with the selective D1/D5 receptor agonist SKF81297. Using the noncanonical amino acid azidohomoalanine and click chemistry, we identified over 300 newly synthesized proteins specific to dendrites and axons. Candidates specific for the SKF81297-treated samples were predominantly involved in protein synthesis and synapse-specific functions. Furthermore, we demonstrate a dendrite-specific increase in proteins synthesis upon application of SKF81297. This study provides the first snapshot in the dynamics of the dopaminergic hippocampal neuropil proteome.
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