Results 51 to 60 of about 4,442,719 (304)

Structural insight into mitochondrial β-barrel outer membrane protein biogenesis

Nature Communications, 2020
The Sorting and Assembly Machinery (SAM) complex folds beta-barrel proteins and inserts them into the mitochondrial outer membrane. Here authors report cryoEM structures of the SAM complex from Myceliophthora thermophila, which reveals a GST-like fold ...
Kathryn A. Diederichs, Xiaodan Ni, Sarah E. Rollauer, Istvan Botos, Xiaofeng Tan, Martin S. King, Edmund R. S. Kunji, Jiansen Jiang, Susan K. Buchanan   +8 more
doaj   +1 more source

A nanoluciferase biosensor to investigate endogenous chemokine secretion and receptor binding

iScience, 2021
Summary: Secreted chemokines are critical mediators of cellular communication that elicit intracellular signaling by binding membrane-bound receptors. Here we demonstrate the development and use of a sensitive real-time approach to quantify secretion and
Carl W. White, Laura E. Kilpatrick, Kevin D.G. Pfleger, Stephen J. Hill   +3 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Solubilization of lipids and membrane proteins into nanodiscs: Mode of action and applications of SMA copolymers [PDF]

, 2016
Cell membranes separate the inside and outside of cells. Membrane proteins in the cell membrane control the traffic of molecules across the membrane and are therefore targets for a lot of drugs: about 50 % of all approved drugs target a membrane protein!
Scheidelaar, S., Sub Membrane Biochemistry & Biophysics, Membrane Biochemistry and Biophysics   +2 more
core  

Discovery of a Positive Allosteric Modulator of Cholecystokinin Action at CCK1R in Normal and Elevated Cholesterol

Frontiers in Endocrinology, 2021
Drugs useful in prevention/treatment of obesity could improve health. Cholecystokinin (CCK) is a key regulator of appetite, working through the type 1 CCK receptor (CCK1R); however, full agonists have not stimulated more weight loss than dieting.
Kaleeckal G. Harikumar, Thomas Coudrat, Thomas Coudrat, Aditya J. Desai, Maoqing Dong, Daniela G. Dengler, Sebastian G. B. Furness, Arthur Christopoulos, Arthur Christopoulos, Denise Wootten, Denise Wootten, Eduard A. Sergienko, Patrick M. Sexton, Patrick M. Sexton, Laurence J. Miller   +14 more
doaj   +1 more source

Diffusion of Integral Membrane Proteins in Protein-Rich Membranes

The Journal of Physical Chemistry Letters, 2017
The lateral diffusion of embedded proteins along lipid membranes in protein-poor conditions has been successfully described in terms of the Saffman-Delbrück (SD) model, which predicts that the protein diffusion coefficient D is weakly dependent on its radius R as D ∝ ln(1/R).
Matti Javanainen, Hector Martinez-Seara, Ralf Metzler, Ilpo Vattulainen   +3 more
openaire   +5 more sources

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

Transport of proteins across mitochondrial membranes [PDF]

, 1994
The vast majority of proteins comprising the mitochondrion are encoded by nuclear genes, synthesized on ribosomes in the cytosol, and translocated into the various mitochondrial subcompartments. During this process proteins must cross the lipid membranes
Neupert, Walter
core   +1 more source

A novel and selective fluorescent ligand for the study of adenosine A2B receptors

Pharmacology Research & Perspectives
Fluorescent ligands have proved to be powerful tools in the study of G protein‐coupled receptors in living cells. Here we have characterized a new fluorescent ligand PSB603‐BY630 that has high selectivity for the human adenosine A2B receptor (A2BR).
Foteini Patera, Sarah J. Mistry, Nicholas D. Kindon, Eleonora Comeo, Joelle Goulding, Barrie Kellam, Laura E. Kilpatrick, Hester Franks, Stephen J. Hill   +8 more
doaj   +1 more source

Agonist efficacy at the β2AR is driven by the faster association rate of the Gs protein

Frontiers in Pharmacology
IntroductionThe β2-adrenoceptor (β2AR) is a class A G protein-coupled receptor (GPCR). It is therapeutically relevant in asthma and chronic obstructive pulmonary disease (COPD), where β2AR agonists relieve bronchoconstriction.
Clare R. Harwood, Clare R. Harwood, David A. Sykes, David A. Sykes, David A. Sykes, Theo Redfern-Nichols, Owen Underwood, Colin Nicholson, Colin Nicholson, Armin N. Khoshgrudi, Armin N. Khoshgrudi, Eline J. Koers, Eline J. Koers, Graham Ladds, Graham Ladds, Stephen J. Briddon, Stephen J. Briddon, Dmitry B. Veprintsev, Dmitry B. Veprintsev, Dmitry B. Veprintsev   +19 more
doaj   +1 more source