Results 101 to 110 of about 1,424,154 (388)

Phosphorus Dynamics in a Eutrophic Lagoon: Uptake and Utilization of Nutrient Pulses by Phytoplankton

open access: yesFrontiers in Marine Science, 2020
Coastal ecosystems are subject to human impacts both through adjacent lands and by run-off from the broader catchment area. Nutrient inputs, like phosphorus, were often lowered decades ago, but many aquatic ecosystems have not recovered accordingly ...
Maximilian Berthold, Rhena Schumann
doaj   +1 more source

Pyruvate kinase phosphatase [PDF]

open access: yesFEBS Letters, 1981
1. Introduction Liver pyruvate kinase can be phosphorylated and simultaneously inactivated by CAMP-dependent pro- tein kinase; the inactivated enzyme can be reactivated by a multifunctional protein phosphatase (review [ 13). The inactivation of pyruvate kinase has been observed in isolated hepatocytes incubated in the presence of glucagon and in this ...
Mary-Frances Jett   +2 more
openaire   +3 more sources

Ultrasensitivity in phosphorylation-dephosphorylation cycles with little substrate [PDF]

open access: yes, 2013
Cellular decision-making is driven by dynamic behaviours, such as the preparations for sunrise enabled by circadian rhythms and the choice of cell fates enabled by positive feedback.
Mac Gabhann, Feilim   +2 more
core   +3 more sources

Ubiquitination of transcription factors in cancer: unveiling therapeutic potential

open access: yesMolecular Oncology, EarlyView.
In cancer, dysregulated ubiquitination of transcription factors contributes to the uncontrolled growth and survival characteristics of tumors. Tumor suppressors are degraded by aberrant ubiquitination, or oncogenic transcription factors gain stability through ubiquitination, thereby promoting tumorigenesis.
Dongha Kim, Hye Jin Nam, Sung Hee Baek
wiley   +1 more source

Intestinal alkaline phosphatase: novel functions and protective effects.

open access: yesNutrition reviews, 2014
Important protective roles of intestinal alkaline phosphatase (IAP)--including regulation of intestinal surface pH, absorption of lipids, detoxification of free nucleotides and bacterial lipopolysaccharide, attenuation of intestinal inflammation, and ...
J. Lallès
semanticscholar   +1 more source

Immunogenic Modulations Induced by Prospective Anti-Malarial Herbal Extracts in Murine Model [PDF]

open access: yes, 2010
Keeping in view the ever increasing problem of drug resistance and affordability of the antimalarial drugs by the poor mass, herbal medicines can become an important and alternative sustainable strategy for malaria treatment.
Chinmoy Karjee   +11 more
core   +1 more source

Protein phosphatase 5 regulates titin phosphorylation and function at a sarcomere-associated mechanosensor complex in cardiomyocytes. [PDF]

open access: yes, 2018
Serine/threonine protein phosphatase 5 (PP5) is ubiquitously expressed in eukaryotic cells; however, its function in cardiomyocytes is unknown. Under basal conditions, PP5 is autoinhibited, but enzymatic activity rises upon binding of specific factors ...
Beckendorf, Lisa   +10 more
core   +3 more sources

A nucleotide‐independent, pan‐RAS‐targeted DARPin elicits anti‐tumor activity in a multimodal manner

open access: yesMolecular Oncology, EarlyView.
We report a Designed Ankyrin Repeat Protein that binds and inhibits RAS proteins, which serve as central cell signaling hubs and are essential for the progression of many cancers. Its unique feature is that it does not discriminate between different RAS isoforms or mutations and is capable of binding to RAS in both its active (GTP‐bound) and inactive ...
Jonas N. Kapp   +13 more
wiley   +1 more source

Phosphate Solubilizing Rhizobacteria Could Have a Stronger Influence on Wheat Root Traits and Aboveground Physiology Than Rhizosphere P Solubilization

open access: yesFrontiers in Plant Science, 2020
Limited P availability in several agricultural areas is one of the key challenges facing current agriculture. Exploiting P-solubilizing bacteria (PSB) has been an emerging bio-solution for a higher rhizosphere P-availability, meanwhile the above- and ...
Wissal Elhaissoufi   +9 more
doaj   +1 more source

Mechanisms Regulating the Association of Protein Phosphatase 1 with Spinophilin and Neurabin [PDF]

open access: yes, 2018
Protein phosphorylation is a key mediator of signal transduction, allowing for dynamic regulation of substrate activity. Whereas protein kinases obtain substrate specificity by targeting specific amino acid sequences, serine/threonine phosphatase ...
Baucum, Anthony J., II   +6 more
core   +1 more source

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