Results 71 to 80 of about 5,910,464 (346)

The heterotrimeric G-protein complex modulates light sensitivity in arabidopsis thaliana seed germination [PDF]

open access: yes, 2009
Release of dormancy and induction of seed germination are complex traits finely regulated by hormonal signals and environmental cues such as temperature and light.
Benech-Arnold   +39 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

G protein stoichiometry dictates biased agonism through distinct receptor-G protein partitioning

open access: yesScientific Reports, 2017
Biased agonism at G protein coupled receptors emerges as an opportunity for development of drugs with enhanced benefit/risk balance making biased ligand identification a priority.
Lauriane Onfroy   +6 more
doaj   +1 more source

G protein β5-ATM complexes drive acetaminophen-induced hepatotoxicity

open access: yesRedox Biology, 2021
Excessive ingestion of the common analgesic acetaminophen (APAP) leads to severe hepatotoxicity. Here we identify G protein β5 (Gβ5), elevated in livers from APAP overdose patients, as a critical regulator of cell death pathways and autophagic signaling ...
Arnab Pramanick   +18 more
doaj   +1 more source

Modelization of Thermal Fluctuations in G Protein-Coupled Receptors

open access: yes, 2005
We simulate the electrical properties of a device realized by a G protein coupled receptor (GPCR), embedded in its membrane and in contact with two metallic electrodes through which an external voltage is applied.
Akimov, V.   +7 more
core   +1 more source

Structural and Functional Analysis of a β2-Adrenergic Receptor Complex with GRK5. [PDF]

open access: yes, 2017
The phosphorylation of agonist-occupied G-protein-coupled receptors (GPCRs) by GPCR kinases (GRKs) functions to turn off G-protein signaling and turn on arrestin-mediated signaling.
Adams, Christopher M.   +12 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Anti-G protein antibodies targeting the RSV G protein CX3C chemokine region improve the interferon response

open access: yesTherapeutic Advances in Infectious Disease, 2023
Background: Respiratory syncytial virus (RSV) is a poor inducer of antiviral interferon (IFN) responses which result in incomplete immunity and RSV disease.
Harrison C. Bergeron   +2 more
doaj   +1 more source

Heterotrimeric G Protein Signaling in Abiotic Stress

open access: yesPlants, 2022
As sessile organisms, plants exhibit extraordinary plasticity and have evolved sophisticated mechanisms to adapt and mitigate the adverse effects of environmental fluctuations. Heterotrimeric G proteins (G proteins), composed of α, β, and γ subunits, are
Yijie Wang, Jose Ramón Botella
doaj   +1 more source

Monomeric ephrinB2 binding induces allosteric changes in Nipah virus G that precede its full activation. [PDF]

open access: yes, 2017
Nipah virus is an emergent paramyxovirus that causes deadly encephalitis and respiratory infections in humans. Two glycoproteins coordinate the infection of host cells, an attachment protein (G), which binds to cell surface receptors, and a fusion (F ...
Jardetzky, Theodore S   +9 more
core   +2 more sources

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