Abstract:
:Temperature is one of the primary environmental factors that affect aging, in which protein phosphorylation is an important regulator. Currently, the understanding of phosphorylation events in regulatory networks during aging has remained rather limited. Herein, the phosphoproteomes of C.elegans of different age groups cultured at 20 °C (natural aging) and 25 °C (accelerated aging) were analyzed. Through using the iTRAQ-labeled phosphoproteomics method, 2375 phosphoproteins and 9063 phosphosites were identified. Volcano plots illustrated that 208 proteins during natural aging and 130 proteins during accelerated aging, were significantly changed. Gene ontology and pathway analysis revealed that these proteins were mainly involved in translation, development, metabolisms, and animal behavior processes. Moreover, our results uncovered those kinases CK2, MAPK and CAMK2 might play important roles in aging regulation. Functional experiments confirm that the candidated phosphoprotein GTBP-1 could regulate C.elegans lifespan at 20 °C or 25 °C and is more resistant to heat and oxidative stresses. In summary, our results provided an important resource for future studies of protein phosphorylation in worms. Data are available via ProteomeXchange with identifier PXD009661.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Huang J,Wu Z,Wang J,Zhang Xdoi
10.1016/j.bbrc.2018.07.142subject
Has Abstractpub_date
2018-09-10 00:00:00pages
1962-1967issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(18)31646-2journal_volume
503pub_type
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