Results 31 to 40 of about 40,005 (218)

Regulation of PP2A, PP4, and PP6 holoenzyme assembly by carboxyl-terminal methylation

open access: yesScientific Reports, 2021
The family of Phosphoprotein Phosphatases (PPPs) is responsible for most cellular serine and threonine dephosphorylation. PPPs achieve substrate specificity and selectivity by forming multimeric holoenzymes. PPP holoenzyme assembly is tightly controlled,
Scott P. Lyons   +4 more
doaj   +1 more source

Unexpected catalytic site variation in phosphoprotein phosphatase homologues of cofactor-dependent phosphoglycerate mutase [PDF]

open access: yes, 2003
The cofactor-dependent phosphoglycerate mutase (dPGM) superfamily contains, besides mutases, a variety of phosphatases, both broadly and narrowly substrate-specific.
Rigden, Daniel J., Daniel J. Rigden
core   +1 more source

Quantum-based modeling implies that bidentate Arg89-substrate binding enhances serine/threonine protein phosphatase-2A(PPP2R5D/PPP2R1A/PPP2CA)-mediated dephosphorylation

open access: yesFrontiers in Cell and Developmental Biology, 2023
PP2A-serine/threonine protein phosphatases function as heterotrimeric holoenzymes, composed of a common scaffold (A-subunit encoded by PPP2R1A/PPP2R1B), a common catalytic (C-subunit encoded by PPP2CA/PPP2CB), and one of many variable regulatory (B ...
E. Alan Salter   +3 more
doaj   +1 more source

Phosphoprotein Phosphatase Activity in the Thyroid

open access: yesExperimental Biology and Medicine, 1975
Phosphoprotein phosphatase activity in the calf thyroid was found in various subcellular fractions. The relative amount in each fraction varied according to the substrate used: The 500g fraction had the highest specific activity when protamine was used, while the 5000g fraction was highest when histone was used. Triton X-100 tended to increase activity
S W, Spaulding, G N, Burrow
openaire   +2 more sources

Kinases and Phosphatases: The Challenge of a New Journal Entirely Focused on Post-Translational Modifications [PDF]

open access: yes, 2022
On behalf of all the Editorial Board members and the MDPI staff, I’m pleased to announce the publishing of the inaugural issue of the Kinases and Phosphatases journal [...
Salvi, Mauro, Mauro Salvi
core   +1 more source

Cytokine-stimulated Phosphoflow of PBMC Using CyTOF Mass Cytometry

open access: yesBio-Protocol, 2015
Phosphorylation of tyrosine, serine, and threonine residues is critical for the control of protein activity involved in various cellular events. An assortment of kinases and phosphatases regulate intracellular protein phosphorylation in many different ...
Rosemary Fernandez, Holden Maecker
doaj   +1 more source

Charged with meaning: the structure and mechanism of phosphoprotein phosphatases [PDF]

open access: yes, 1995
The new structural data obtained for PP1 and calcineurin—A resolve many of the outstanding questions about the catalytic nature of the Ser/Thr phosphatases. These enzymes may now be firmly classed as two-metal ion phosphatases.
Widlanski, Theodore S.   +1 more
core   +1 more source

Cyclic AMP-sensitive activation of hepatic sterol synthesis and 3-hydroxy-3-methylglutaryl coenzyme A reductase.

open access: yesJournal of Lipid Research, 1978
We previously showed that preincubation of a 10,000 g supernatant (S(10)) from rat liver for 20 min at 37 degrees C dramatically increased the subsequent incorporation of [(14)C]acetate into sterols.
C D Goodwin, S Margolis
doaj   +1 more source

Calcineurin regulates homologous desensitization of natriuretic peptide receptor-A and inhibits ANP-induced testosterone production in MA-10 cells. [PDF]

open access: yesPLoS ONE, 2012
Receptor desensitization is a ubiquitous regulatory mechanism that defines the activatable pool of receptors, and thus, the ability of cells to respond to environmental stimuli. In recent years, the molecular mechanisms controlling the desensitization of
Michelle B Henesy   +7 more
doaj   +1 more source

The TriTryp Phosphatome: analysis of the protein phosphatase catalytic domains [PDF]

open access: yes, 2007
Background The genomes of the three parasitic protozoa Trypanosoma cruzi, Trypanosoma brucei and Leishmania major are the main subject of this study. These parasites are responsible for devastating human diseases known as Chagas disease, African sleeping
Szoor, Balazs; id_orcid   +26 more
core   +1 more source

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