In neurons, regulation of proteome by translation and degradation is critical for their normal functioning. We identified novel peptides translated from non-coding genome in mouse using proteogenomics. Using quantitative proteomics and biochemical validations, the novel targets and regulatory mechanisms of KIFC1, HuD and SMN proteins were identified to undergo the APC/C mediated ubiquitination/degradation. APC/C inhibition increases levels of HuD and SMN proteins and rescues SMA in zebrafish model. These findings have implications for understanding the neuronal protein homeostasis and finding potential therapeutics for SMA disease.
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In neurons, regulation of proteome by translation and degradation is critical for their normal functioning. We identified novel peptides translated from non-coding genome in mouse using proteogenomics. Using quantitative proteomics and biochemical validations, the novel targets and regulatory mechanisms of KIFC1, HuD and SMN proteins were identified to undergo the APC/C mediated ubiquitination/degradation. APC/C inhibition increases levels of HuD and SMN proteins and rescues SMA in zebrafish mod...
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