Results 11 to 20 of about 5,959,864 (346)

Gi- and Gs-coupled GPCRs show different modes of G-protein binding. [PDF]

open access: yes, 2018
More than two decades ago, the activation mechanism for the membrane-bound photoreceptor and prototypical G protein-coupled receptor (GPCR) rhodopsin was uncovered.
Altenbach, Christian   +7 more
core   +1 more source

Structure Elucidation and Biochemical Characterization of Environmentally Relevant Novel Extradiol Dioxygenases Discovered by a Functional Metagenomics Approach

open access: yesmSystems, 2019
The release of synthetic chemical pollutants in the environment is posing serious health risks. Enzymes, including oxygenases, play a crucial role in xenobiotic degradation. In the present study, we employed a functional metagenomics approach to overcome
Chandni Sidhu   +3 more
doaj   +3 more sources

Neonatal priming and infancy boosting with a novel respiratory syncytial virus vaccine induces protective immune responses without concomitant respiratory disease upon RSV challenge

open access: yesHuman Vaccines & Immunotherapeutics, 2020
Although respiratory syncytial virus (RSV) infection in infants and young children is a global public health issue, development of a safe RSV vaccine has been impeded by formalin-inactivated RSV-enhanced respiratory disease (ERD).
Shuren Zhang   +10 more
doaj   +1 more source

G Proteins [PDF]

open access: yesCirculation Research, 2007
See related article, pages 1191–1199 Signaling through the activation of G proteins represents the most widely used signaling pathway in mammalian biology.1,2 Classically, a transmembrane receptor comprising seven transmembrane domains (G protein-coupled receptor, GPCR) is activated by an extracellular stimulus and transduces this information to ...
Stefan Engelhardt, Francesca Rochais
openaire   +1 more source

Molecular mechanism of Gαi activation by non-GPCR proteins with a Gα-Binding and Activating motif [PDF]

open access: yes, 2017
Heterotrimeric G proteins are quintessential signalling switches activated by nucleotide exchange on Gα. Although activation is predominantly carried out by G-protein-coupled receptors (GPCRs), non-receptor guanine-nucleotide exchange factors (GEFs) have
Baillie, George S.   +14 more
core   +1 more source

Nutritional characteristics of selected insects in Uganda for use as alternative protein sources in food and feed [PDF]

open access: yes, 2020
Open Access Journal; Published online: 18 Dec 2019Insects are potential ingredients for animal feed and human food. Their suitability may be influenced by species and nutritional value.
Bbosa, T.   +4 more
core   +1 more source

Strain-Dependent Impact of G and SH Deletions Provide New Insights for Live-Attenuated HMPV Vaccine Development

open access: yesVaccines, 2019
Human metapneumovirus (HMPV) is a major pediatric respiratory pathogen with currently no specific treatment or licensed vaccine. Different strategies to prevent this infection have been evaluated, including live-attenuated vaccines (LAV) based on SH and ...
Julia Dubois   +16 more
doaj   +1 more source

Cryo-EM structure of the human somatostatin receptor 2 complex with its agonist somatostatin delineates the ligand-binding specificity

open access: yeseLife, 2022
Somatostatin is a peptide hormone that regulates endocrine systems by binding to G-protein-coupled somatostatin receptors. Somatostatin receptor 2 (SSTR2) is a human somatostatin receptor and is highly implicated in hormone disorders, cancers, and ...
Yunseok Heo   +8 more
doaj   +1 more source

Expression of an atrial G-protein-activated potassium channel in Xenopus oocytes [PDF]

open access: yes, 1993
Injection of rat atrial RNA into Xenopus oocytes resulted in the expression of a guanine nucleotide binding (G) protein-activated K+ channel. Current through the channel could be activated by acetylcholine or, if RNA encoding a neuronal 5HT1A receptor ...
Dascal, Nathan   +5 more
core   +1 more source

Molecular architecture of Gαo and the structural basis for RGS16-mediated deactivation [PDF]

open access: yes, 2008
Heterotrimeric G proteins relay extracellular cues from heptahelical transmembrane receptors to downstream effector molecules. Composed of an α subunit with intrinsic GTPase activity and a βγ heterodimer, the trimeric complex dissociates upon receptor ...
Berman   +34 more
core   +4 more sources

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