Results 21 to 30 of about 66,472 (220)

Gαs slow conformational transition upon GTP binding and a novel Gαs regulator

open access: yesiScience, 2023
Summary: G proteins are major signaling partners for G protein-coupled receptors (GPCRs). Although stepwise structural changes during GPCR–G protein complex formation and guanosine diphosphate (GDP) release have been reported, no information is available
Donghoon Ahn   +12 more
doaj   +1 more source

GUANOSINE DIPHOSPHATE MANNOSE

open access: yesJournal of Biological Chemistry, 1954
Blanco y ...
Cabib, Enrico, Leloir, Luis Federico
openaire   +3 more sources

AMP-Activated Protein Kinase Activation by 5-Aminoimidazole-4-carboxamide-1-β-D-ribofuranoside (AICAR) Inhibits Palmitate-Induced Endothelial Cell Apoptosis Through Reactive Oxygen Species Suppression

open access: yesJournal of Pharmacological Sciences, 2008
AMP-activated protein kinase (AMPK) activation has an antiapoptotic effect in endothelial cells, but the mechanisms involved remain unclear. Here, we investigated whether AMPK activation could inhibit palmitate-induced apoptosis through suppression of ...
Ji-Eun Kim   +5 more
doaj   +1 more source

NUCLEOSIDE-DIPHOSPHATASE OF CESTODE BOTHRIOCEPHALUS SCORPII (CESTODA: BOTHRIOCEPHALIDAE)

open access: yesРоссийский паразитологический журнал, 2016
Objective of research: To study the activities and properties of nucleoside- diphosphatase (NDPase) in cestode Bothriocephalus scorpii.Materials and methods: Cestodes were homogenized with 10 vol. of extraction medium. NDPase was detected in mitochondria
E. A. Burenina
doaj   +1 more source

Evidence for the intense exchange of MazG in marine cyanophages by horizontal gene transfer [PDF]

open access: yes, 2008
Background: S-PM2 is a phage capable of infecting strains of unicellular cyanobacteria belonging to the genus Synechococcus. S-PM2, like other myoviruses infecting marine cyanobacteria, encodes a number of bacterial-like genes. Amongst these genes is one
M. J. Bryan (7607582)   +23 more
core   +2 more sources

The Ps and Qs of alarmone synthesis in Staphylococcus aureus.

open access: yesPLoS ONE, 2019
During the stringent response, bacteria synthesize guanosine-3',5'-bis(diphosphate) (ppGpp) and guanosine-5'-triphosphate 3'-diphosphate (pppGpp), which act as secondary messengers to promote cellular survival and adaptation.
Ning Yang   +5 more
doaj   +1 more source

Real-Time In-Cell NMR Reveals the Intracellular Modulation of GTP-Bound Levels of RAS

open access: yesCell Reports, 2020
Summary: The small guanosine triphosphatase (GTPase) RAS serves as a molecular switch in signal transduction, and its mutation and aberrant activation are implicated in tumorigenesis.
Qingci Zhao   +6 more
doaj   +1 more source

Roles of Rap1 signaling in tumor cell migration and invasion

open access: yesCancer Biology & Medicine, 2017
Ras-associated protein-1 (Rap1), a small GTPase in the Ras-related protein family, is an important regulator of basic cellular functions (e.g., formation and control of cell adhesions and junctions), cellular migration, and polarization.
Yi-Lei Zhang   +4 more
doaj   +1 more source

Efficient Enzymatic Synthesis of Guanosine 5′-Diphosphate-Sugars and Derivatives [PDF]

open access: yes, 2013
An N-acetylhexosamine 1-kinase from Bifidobacterium infantis (NahK_15697), a guanosine 5'-diphosphate (GDP)-mannose pyrophosphorylase from Pyrococcus furiosus (PFManC), and an Escherichia coli inorganic pyrophosphatase (EcPpA) were used efficiently for a
Zhao, Wei   +6 more
core   +1 more source

Comparison of Anticancer Activities and Biosafety Between Salmonella enterica Serovar Typhimurium ΔppGpp and VNP20009 in a Murine Cancer Model

open access: yesFrontiers in Microbiology, 2022
Salmonella Typhimurium defective in guanosine 5′-diphosphate-3′-diphosphate (ppGpp) synthesis (ΔppGpp) is an attenuated strain with good biosafety and excellent anticancer efficacy.
Xiaoqing Liu   +6 more
doaj   +1 more source

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