Results 81 to 90 of about 154,453 (348)

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

, 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., Blanco, Francisco J., Blanco-Canosa, Juan B., Cerione, Richard A., de la Cruz-Morcillo, Miguel Angel, DiGiacomo, Vincent, Garcia-Marcos, Mikel, Ibáñez de Opakua, Alain, Leyme, Anthony, Marivin, Arthur, Merino, Nekane, Nguyen, Lien T., Parag-Sharma, Kshitij, Ramachandran, Sekar, Villate, Maider   +14 more
core   +1 more source

Temporal Transcriptional Regulation of Human Neuronal Differentiation via Forward Programming

Advanced Science, EarlyView.
Single‐cell profiling of TF‐induced forward programming versus stepwise dual‐SMAD differentiation reveals that divergent trajectories set the pace of neurogenesis. OLIG TFs advance cell‐cycle exit via NOTCH modulation, while NEUROD2 later accelerates maturation. The study elucidates transcriptional mechanisms governing differentiation timing, providing
Lingling Zhu, Weiguang Wang, Jian Zhang, Lei Liu, Minpeng Huang, Lei Diao, Shuang Feng, Qiong Yang, Hao Qiu, Bing Pan, Renee A Reijo Pera, Ji Liu, Ninuo Xia, Fang Fang   +13 more
wiley   +1 more source

An Interhelical Salt Bridge Controls Flexibility and Inhibitor Potency for Regulators of G-protein Signaling Proteins 4, 8, and 19

Molecular Pharmacology, 2019
Regulators of G-protein signaling (RGS) proteins modulate receptor signaling by binding to activated G-protein α-subunits, accelerating GTP hydrolysis.
Vincent S. Shaw, Mohammadjavad Mohammadi, Josiah A. Quinn, Harish Vashisth, R. Neubig   +4 more
semanticscholar   +1 more source

The Small GTP-Binding Protein RhoA Regulates a Delayed Rectifier Potassium Channel [PDF]

Cell, 1998
Tyrosine kinases activated by G protein-coupled receptors can phosphorylate and thereby suppress the activity of the delayed rectifier potassium channel Kv1.2. Using a yeast two-hybrid screen, we identified the small GTP-binding protein RhoA as a necessary component in this process.
Cachero, Teresa G., Morielli, Anthony D., Peralta, Ernest G.   +2 more
openaire   +2 more sources

Adenylyl Cyclase 8 in Dorsal CA1 Neurons Prevents Depressive‐Like Behaviors by Maintaining Neuronal Excitability and Glutamatergic Neurotransmission Through TIP39‐PTH2R Signaling

Advanced Science, EarlyView.
Depression, a prevalent neuropsychiatric disorder with unclear pathogenesis, involves dysfunctional adenylyl cyclase 8 (Adcy8) as a key risk factor. Chronic stress selectively reduces Adcy8 expression in the dorsal CA1 (dCA1) neurons. Depletion of Adcy8 in dCA1 excitatory neurons induces depressive‐like behaviors by impairing neuronal excitability and ...
Zi‐Jie Liu, Jia‐Rui Bi, Zong‐Yan Yu, Meng Tian, Zhi‐Yue Chen, Ran Wei, Miao‐Miao Wang, Hai‐Wei Zha, Yu‐Qing Zhang, Hong‐Jing Wang, Bang‐You Qiang, Shuang‐Shuang Sun, Xiao‐Juan Zhu, Wen‐Bing Chen, Dong Sun   +14 more
wiley   +1 more source

Genome-scale architecture of small molecule regulatory networks and the fundamental trade-off between regulation and enzymatic activity [PDF]

, 2017
Metabolic flux is in part regulated by endogenous small molecules that modulate the catalytic activity of an enzyme, e.g., allosteric inhibition. In contrast to transcriptional regulation of enzymes, technical limitations have hindered the production of ...
Briars, Emma, Christodoulou, Dimitris, Goldford, Joshua E., Noor, Elad, Reznik, Ed, Sauer, Uwe, Segrè, Daniel   +6 more
core   +2 more sources

The small GTP-binding protein, Rhes, regulates signal transduction from G protein-coupled receptors [PDF]

Oncogene, 2004
The Ras homolog enriched in striatum, Rhes, is the product of a thyroid hormone-regulated gene during brain development. Rhes and the dexamethasone-induced Dexras1 define a novel distinct subfamily of proteins within the Ras family, characterized by an extended variable domain in the carboxyl terminal region. We have carried this study because there is
Vargiu, Pierfrancesco, Abajo, Ricardo de, Garcia-Ranea, Juan Antonio, Valencia, Alfonso, Santisteban, Pilar, Crespo, Piero, Bernal, Juan   +6 more
openaire   +3 more sources

A Rationally Engineered Spleen‐Tropic One‐Component Lipid‐mRNA Complex (OncoLRC) for Cancer Vaccines

Advanced Science, EarlyView.
OncoLRC, a one‐component lipid‐mRNA complex, enables efficient spleen‐targeted delivery at an exceptionally low lipid‐to‐mRNA mass ratio (1.5:1), robustly activates immune responses, inhibits tumor growth, and synergizes with checkpoint blockade, presenting a next‐generation platform for mRNA vaccines.
Qimeng Yin, Chenchen Zhang, Jiahao Li, Kun Huang, Min Qiu   +4 more
wiley   +1 more source

Amino-terminal cysteine residues of RGS16 are required for palmitoylation and modulation of G(i)- and G(q)-mediated signaling [PDF]

, 1999
RGS proteins (Regulators of G protein Signaling) are a recently discovered family of proteins that accelerate the GTPase activity of heterotrimeric G protein α subunits of the i, q, and 12 classes.
Backlund, Peter S., Caron, Joan M., Chen, Ching-Kang, Druey, Kirk M., Jones, Teresa L. Z., Ugur, Ozlem   +5 more
core   +1 more source

Effectiveness of Multivitamins vs Folic Acid on Prevention of Neural Tube Defects in Mouse Genetic Models and Human Organoids

Advanced Science, EarlyView.
Folic acid (FA) and multivitamins/minerals (MVM) are recommended for the prevention of neural tube defects (NTDs). Using a novel human neural tube‐like organoid system and mouse models, the study compares the effectiveness of two supplements on NTDs and cellular behaviors.
Huili Li, Jing Zhang, Lori Bulwith, Lee Niswander   +3 more
wiley   +1 more source