ArticleMolecular and cellular endocrinology2016
Quantitative proteomics reveals novel protein interaction partners of PP2A catalytic subunit in pancreatic β-cells.
Article in Molecular and cellular endocrinology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 19 citations in OpenAlex.
- Article
- Alpha4 contributes to the dysfunction of the pancreatic beta cell under metabolic stress.Molecular and cellular endocrinology · 2022Article
- Potential roles of PP2A-Rac1 signaling axis in pancreatic β-cell dysfunction under metabolic stress: Progress and promise.Biochemical pharmacology · 2020Review
- GPCRs, G Proteins, and Their Impact on β-cell Function.Comprehensive Physiology · 2020Review
- Quantitative proteomics reveals novel interaction partners of Rac1 in pancreatic β-cells: Evidence for increased interaction with Rac1 under hyperglycemic conditions.Molecular and cellular endocrinology · 2019Article
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
Protein phosphatase 2A (PP2A) is one of the major serine/threonine phosphatases. We hypothesize that PP2A regulates signaling cascades in pancreatic β-cells in the context of glucose-stimulated insulin secretion (GSIS). Using co-immunoprecipitation (co-IP) and tandem mass spectrometry, we globally identified the protein interaction partners of the PP2A catalytic subunit (PP2Ac) in insulin-secreting pancreatic β-cells. Among the 514 identified PP2Ac interaction partners, 476 were novel. This represents the first global view of PP2Ac protein-protein interactions caused by hyperglycemic conditions. Additionally, numerous PP2Ac partners were found involved in a variety of signaling pathways in the β-cell function, such as insulin secretion. Our data suggest that PP2A interacts with various signaling proteins necessary for physiological insulin secretion as well as signaling proteins known to regulate cell dysfunction and apoptosis in the pancreatic β-cells.
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