Results 91 to 100 of about 1,006,409 (430)

Insights into the renal pathophysiology in Hermansky‐Pudlak syndrome‐1 from urinary extracellular vesicle proteomics and a new mouse model

FEBS Letters, Volume 599, Issue 7, Page 1055-1074, April 2025.
Hermansky‐Pudlak syndrome type 1 (HPS‐1) is a rare, autosomal recessive disorder with poorly understood renal involvement. Urinary extracellular vesicle (uEV) proteomics and a novel Hps1 mouse model reveal mitochondrial abnormalities and lipid accumulation in HPS‐1 kidney proximal tubule cells. Serum ApoA1 correlates with kidney function in our patient
Dawn M. Maynard, Bernadette R. Gochuico, Hadass Pri Chen, Christopher K. E. Bleck, Patricia M. Zerfas, Wendy J. Introne, William A. Gahl, May C. V. Malicdan   +7 more
wiley   +1 more source

G-Protein–Coupled Receptors in Heart Disease

Circulation Research, 2018
GPCRs (G-protein [guanine nucleotide-binding protein]–coupled receptors) play a central physiological role in the regulation of cardiac function in both health and disease and thus represent one of the largest class of surface receptors targeted by drugs.
Jialu Wang, C. Gareri, H. Rockman
semanticscholar   +1 more source

Cytosolic‐enhanced dark Epac‐based FRET sensors allow for intracellular cAMP detection in live cells via FLIM

FEBS Letters, Volume 599, Issue 7, Page 1075-1085, April 2025.
We describe a novel set of Epac‐based FRET‐FLIM biosensors with improved fully cytosolic distribution, achieved without compromising the state‐of‐the‐art performance of our original designs, for detecting cAMP dynamics in real time in live cells with high precision and reliability.
Giulia Zanetti, Jeffrey B. Klarenbeek, Kees Jalink   +2 more
wiley   +1 more source

Quantifying selection in immune receptor repertoires [PDF]

Proc Natl Acad Sci USA 111(27) 9875-9880 (2014), 2014
The efficient recognition of pathogens by the adaptive immune system relies on the diversity of receptors displayed at the surface of immune cells. T-cell receptor diversity results from an initial random DNA editing process, called VDJ recombination, followed by functional selection of cells according to the interaction of their surface receptors with
arxiv   +1 more source

The [2Fe‐2S] cluster of mitochondrial outer membrane protein mitoNEET has an O2‐regulated nitric oxide access tunnel

FEBS Letters, Volume 599, Issue 7, Page 952-970, April 2025.
The mitochondrial outer membrane iron–sulphur ([Fe‐S]) protein mitoNEET is a target of the type‐2 diabetes drug pioglitazone. Its unknown molecular function is linked to respiratory complex activity and mitochondrial function. We discovered that O2 protects the mitoNEET [2Fe‐2S] cluster against NO oxidation and desensitization towards reduction by H2S.
Thao Nghi Hoang, Meritxell Wu‐Lu, Alberto Collauto, Peter‐Leon Hagedoorn, Madalina Alexandru, Maike Henschel, Shahram Kordasti, Maria Andrea Mroginski, Maxie M. Roessler, Kourosh H. Ebrahimi   +9 more
wiley   +1 more source

Rules and mechanisms governing G protein coupling selectivity of GPCRs

Cell Reports, 2023
Summary: G protein-coupled receptors (GPCRs) convert extracellular stimuli into intracellular signaling by coupling to heterotrimeric G proteins of four classes: Gi/o, Gq, Gs, and G12/13.
Ikuo Masuho, Ryoji Kise, Pablo Gainza, Ee Von Moo, Xiaona Li, Ryosuke Tany, Hideko Wakasugi-Masuho, Bruno E. Correia, Kirill A. Martemyanov   +8 more
doaj  

Fusion protein strategies for cryo-EM study of G protein-coupled receptors

Nature Communications, 2022
Here, Zhang et al. explore fusion protein strategies to facilitate cryo-EM structural studies of GPCRs alone- without signal transducers- in ligand bound or unliganded form.
Kaihua Zhang, Hao Wu, Nicholas Hoppe, Aashish Manglik, Yifan Cheng   +4 more
doaj   +1 more source

Local Clustering and Global Spreading of Receptors for Optimal Spatial Gradient Sensing [PDF]

Phys. Rev. Lett. 134, 158401 (2025)
Spatial information from cell-surface receptors is crucial for processes that require signal processing and sensing of the environment. Here, we investigate the optimal placement of such receptors through a theoretical model that minimizes uncertainty in gradient estimation.
arxiv   +1 more source

An allosteric role for receptor activity-modifying proteins in defining GPCR pharmacology [PDF]

, 2016
G protein-coupled receptors are allosteric proteins that control transmission of external signals to regulate cellular response. Although agonist binding promotes canonical G protein signalling transmitted through conformational changes, G protein ...
A Christopoulos, A Manglik, A Sali, AA Pioszak, AA Pioszak, C Parthier, C Weston, CJ Tsai, CR Underwood, CS Walker, D Wootten, DL Hay, DL Hay, DL Hay, DL Hay, DR Poyner, G Christopoulos, H Li, HN Motlagh, IM Dickerson, J Simms, JJ Gingell, JK Archbold, JM Booe, K Hollenstein, KG Harikumar, LM McLatchie, M Morfis, M Udawela, M Udawela, MC Lagerstrom, N Tilakaratne, O Poirot, PM Lenhart, PM Sexton, R Sounier, RA Laskowski, RJ Bailey, RO Dror, S Runge, SG Rasmussen, T Bouschet, T Haliloglu, T Kenakin, T Qi, TJ Dolinsky, V Pham, W Huang   +47 more
core   +1 more source

Molecular insights into the modulation of the 5HT2A receptor by serotonin, psilocin, and the G protein subunit Gqα

FEBS Letters, Volume 599, Issue 6, Page 876-891, March 2025.
We explore 5HT2A receptor activation, a key target for psychedelic drugs, using molecular dynamics simulations. Without Gqα, the active receptor collapses to an inactive conformation, underscoring the G‐protein's role. Discovery of an intermediate “partially‐open” state and the higher affinity of ligands to the orthosteric binding site provides ...
Niklas Viohl, Ali Asghar Hakami Zanjani, Himanshu Khandelia   +2 more
wiley   +1 more source