Results 91 to 100 of about 90,710 (248)
The Emerging Role of Guanine Exchange Factors in ALS and other neurodegenerative diseases
Frontiers in Cellular Neuroscience, 2014 Small GTPases participate in a broad range of cellular processes such as proliferation, differentiation and migration. The exchange of GDP for GTP resulting in the activation of these GTPases is catalyzed by a group of enzymes called guanine nucleotide ...
Cristian eDroppelmann +5 more
doaj +1 more source
Nature Communications, 2017 The guanine nucleotide exchange factor SOS is a critical intermediary that transduces receptor tyrosine kinase stimulation into Ras activation. Here the authors develop a single molecule assay in which SOS is captured from raw lysates using Ras ...
Young Kwang Lee +6 more
doaj +1 more source
A predictive computational model reveals that GIV/girdin serves as a tunable valve for EGFR-stimulated cyclic AMP signals. [PDF]
, 2019 Cellular levels of the versatile second messenger cyclic (c)AMP are regulated by the antagonistic actions of the canonical G protein → adenylyl cyclase pathway that is initiated by G-protein-coupled receptors (GPCRs) and attenuated by phosphodiesterases (
Getz, Michael +4 more
core +1 more source
Gi- and Gs-coupled GPCRs show different modes of G-protein binding. [PDF]
, 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
Immunity & Ageing, 2012 Background We recently isolated and identified Zizimin2 as a functional factor that is highly expressed in murine splenic germinal center B cells after immunization with T-cell-dependent antigen.
Sakabe Isamu +3 more
doaj +1 more source
The Adhesion-GPCR BAI1 Regulates Synaptogenesis by Controlling the Recruitment of the Par3/Tiam1 Polarity Complex to Synaptic Sites [PDF]
, 2013 Excitatory synapses are polarized structures that primarily reside on dendritic spines in the brain. The small GTPase Rac1 regulates the development and plasticity of synapses and spines by modulating actin dynamics.
Duman, Joseph G. +6 more
core +2 more sources
iNew Medicine, EarlyView.ABSTRACT High‐grade serous ovarian cancer (HGSOC) is the most common and lethal histological subtype of ovarian cancer. This study aimed to identify peritoneal metastasis‐associated biomarkers of HGSOC to provide directions for subsequent treatment. Transcriptome data were extracted from the GEO database and literature. Differential expression analysis,
Jing Zhu +8 more
wiley +1 more source
eLife, 2017 RasGRPs are guanine nucleotide exchange factors that are specific for Ras or Rap, and are important regulators of cellular signaling. Aberrant expression or mutation of RasGRPs results in disease. An analysis of RasGRP1 SNP variants led to the conclusion
Yvonne Vercoulen +8 more
doaj +1 more source
Journal of Applied Toxicology, EarlyView.ABSTRACT Aristolochia species have long been used in traditional medicine for their presumed anti‐inflammatory, analgesic and antimicrobial properties. However, extensive toxicological and epidemiological evidence now demonstrates that these plants contain aristolochic acids (AAs) I and II, highly potent nephrotoxic, genotoxic, and carcinogenic ...
Victor Ventura de Souza +2 more
wiley +1 more source