Results 1 to 10 of about 10,403 (145)

Molecular Evolution of Phosphoprotein Phosphatases in Drosophila [PDF]

open access: yesPLoS ONE, 2011
Phosphoprotein phosphatases (PPP), these ancient and important regulatory enzymes are present in all eukaryotic organisms. Based on the genome sequences of 12 Drosophila species we traced the evolution of the PPP catalytic subunits and noted a ...
Viktor Dombrádi   +2 more
exaly   +6 more sources

Protocol to assess substrate dephosphorylation by serine/threonine phosphoprotein phosphatases in vitro [PDF]

open access: yesSTAR Protocols, 2023
Summary: Serine/threonine protein phosphatase 2 (PP2A) forms heterotrimeric holoenzymes, where a scaffold subunit bridges the PP2A catalytic subunit to a B regulatory subunit, e.g., B55α.
Jason S. Wasserman   +6 more
doaj   +2 more sources

The PP2A/4/6 subfamily of phosphoprotein phosphatases regulates DAF-16 and confers resistance to environmental stress in postreproductive adult C. elegans. [PDF]

open access: yesPLoS ONE, 2020
Insulin and insulin-like growth factors are longevity determinants that negatively regulate Forkhead box class O (FoxO) transcription factors. In C. elegans mutations that constitutively activate DAF-16, the ortholog of mammalian FoxO3a, extend lifespan ...
Rebecca S Rivard   +2 more
doaj   +2 more sources

Holding the PP2A and PP4 protein phosphatases at bay: emerging roles of FBXO42 and CCDC6 [PDF]

open access: yesEMBO Reports
The Ser/Thr phosphoprotein phosphatases (PPPs, PP1-PP7) are major regulators of phospho-dependent signaling and precise regulation of their activity is essential for cellular homeostasis (Nilsson, 2019).
Jakob Nilsson
doaj   +2 more sources

A functional map of phosphoprotein phosphatase regulation identifies an evolutionarily conserved reductase for the catalytic metal ions [PDF]

open access: yesNature Communications
Serine/threonine phosphoprotein phosphatases (PPPs) are conserved metalloenzymes and key regulators of intracellular signaling. Here, we systematically map the components and residues required for PP2A-like phosphatase (PP2A/PP4/PP6) function using ...
Bob Meeusen   +17 more
doaj   +2 more sources

Origin of the Phosphoprotein Phosphatase (PPP) sequence family in Bacteria: Critical ancestral sequence changes, radiation patterns and substrate binding features

open access: yesBBA Advances, 2021
Background: Phosphoprotein phosphatases (PPP) belong to the PPP Sequence family, which in turn belongs to the broader metallophosphoesterase (MPE) superfamily.
David Kerk   +5 more
doaj   +1 more source

Structural Insights into Protein Regulation by Phosphorylation and Substrate Recognition of Protein Kinases/Phosphatases

open access: yesLife, 2021
Protein phosphorylation is one of the most widely observed and important post-translational modification (PTM) processes. Protein phosphorylation is regulated by protein kinases, each of which covalently attaches a phosphate group to an amino acid side ...
Seung-Hyeon Seok
doaj   +1 more source

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