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The gamma-aminobutyric acid type B (GABAB) receptor is an allosteric complex made of two subunits, GABAB1 (GB1) and GABAB2 (GB2). Both subunits are composed of an extracellular Venus flytrap domain (VFT) and a heptahelical domain (HD). GB1…

gamma-aminobutyric acid type B (GABA(B)) receptor is an allosteric complex made of two subunits, GABA(B1) and GABA(B2). GABA(B2) plays a major role in the coupling to G protein whereas GABA(B1) binds GABA. It has been shown that GABA(B)…

神经元与认知 · 定量生物学 2008-09-11 Haijun Tu , Philippe Rondard , Chanjuan Xu , Federica Bertaso , Fangli Cao , Xueying Zhang , Jean-Philippe Pin , Jianfeng Liu

G protein-coupled receptors (GPCRs) constitute a large family of receptor proteins that sense molecular signals on the exterior of a cell and activate signal transduction pathways within the cell. Modeling how an agonist activates such a…

生物物理 · 物理学 2015-05-12 Ross D. Hoehn , David Nichols , Hartmut Neven , Sabre Kais

Dynamics and functions of G-protein coupled receptors (GPCRs) are accurately regulated by the type of ligands that bind to the orthosteric or allosteric binding sites. To glean the structural and dynamical origin of ligand-dependent…

生物大分子 · 定量生物学 2016-12-28 Yoonji Lee , Sun Choi , Changbong Hyeon

G protein-coupled receptors (GPCRs) are a large superfamily of membrane proteins that are activated by extracellular small molecules or photons. Neurotensin receptor 1 (NTSR1) is a GPCR that is activated by neurotensin, i.e. a 13 amino acid…

Neurotensin receptor 1 (NTSR1), a member of the Class A G protein-coupled receptor superfamily, plays an important role in modulating dopaminergic neuronal activity and eliciting opioid-independent analgesia. Recent studies suggest that…

生物大分子 · 定量生物学 2025-04-25 Jigang Fan , Chunhao Zhu , Xiaobing Lan , Haiming Zhuang , Mingyu Li , Jian Zhang , Shaoyong Lu

G protein-coupled receptors (GPCRs) govern diverse physiological processes and are central to modern pharmacology. Yet discovering GPCR modulators remains challenging because receptor activation often arises from complex allosteric effects…

机器学习 · 计算机科学 2026-02-03 Jingjie Ning , Xiangzhen Shen , Li Hou , Shiyi Shen , Jiahao Yang , Junrui Li , Hong Shan , Sanan Wu , Sihan Gao , H. Eric Xu , Xinheng He

G-protein coupled receptors (GPCRs), a major gatekeeper of extracellular signals on plasma membrane, are unarguably one of the most important therapeutic targets. Given the recent discoveries of allosteric modulations, an allosteric wiring…

生物大分子 · 定量生物学 2013-10-16 Yoonji Lee , Sun Choi , Changbong Hyeon

Pentameric ligand-gated ion channels (pLGICs) of the Cys-loop superfamily are important neuroreceptors that mediate fast synaptic transmission. They are activated by the binding of a neurotransmitter, but the details of this process are…

生物大分子 · 定量生物学 2016-05-30 Federico Comitani , Vittorio Limongelli , Carla Molteni

G protein-coupled receptors (GPCRs) represent a diverse and vital family of membrane proteins that mediate intracellular signaling in response to extracellular stimuli, playing critical roles in physiology and disease. Traditionally…

生物物理 · 物理学 2025-06-04 Aakanksha J Shetty , Alexei Sirbu , Paolo Annibale

Eukaryotic cells transmit extracellular signal information to cellular interiors through the formation of a ternary complex made up of a ligand (or agonist), G-protein, and G-protein coupled receptor (GPCR). Previously formalized theories…

分子网络 · 定量生物学 2020-09-24 Masaki Watabe , Hideaki Yoshimura , Satya N. V. Arjunan , Kazunari Kaizu , Koichi Takahashi

N-methyl-D-aspartate receptors (NMDARs) are glycoproteins in the brain central to learning and memory. The effects of glycosylation on the structure and dynamics of NMDARs are largely unknown. In this work, we use extensive molecular…

Geometric Attention (GA) specifies an attention layer by four independent inputs: a finite carrier (what indices are addressable), an evidence-kernel rule (how masked proto-scores and a link induce nonnegative weights), a probe family…

机器学习 · 计算机科学 2026-01-21 Luis Rosario Freytes

Photoproteins such as bacteriorhodopsin (bR) and rhodopsin (Rho) need to effectively dissipate photoinduced excess energy to prevent their damage. Another well-studied G protein-coupled receptor (GPCR) containing 7 transmembrane (TM)…

生物物理 · 物理学 2022-10-14 Nadja Helmer , Steffen Wolf , Gerhard Stock

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. To this purpose, recently,…

定量方法 · 定量生物学 2009-11-11 C. Pennetta , V. Akimov , E. Alfinito , L. Reggiani , G. Gomila , G. Ferrari , L. Fumagalli , M. Sampietro

The investigation of the neuronal environment allows us to better understand the activity of a cerebral region as a whole. The recent experimental evidences of the presence of transporters for glutamate and GABA in both neuronal and…

神经元与认知 · 定量生物学 2015-10-07 Aurélie Garnier , Alexandre Vidal , Habib Benali

Aptamers are chemically produced oligonucleotides, able to bind a variety of targets such as drugs, proteins and pathogens with high sensitivity and selectivity. Therefore, aptamers are largely employed for producing label-free biosensors,…

Surface-assisted polymerization of molecular monomers into extended chains can be used as the seed of graphene nanoribbon (GNR) formation, resulting from a subsequent cyclo-dehydrogenation process. By means of valence-band photoemission and…

Anesthetics are crucial in surgical procedures and therapeutic interventions, but they come with side effects and varying levels of effectiveness, calling for novel anesthetic agents that offer more precise and controllable effects.…

生物大分子 · 定量生物学 2025-01-07 Jian Jiang , Long Chen , Yueying Zhu , Yazhou Shi , Huahai Qiu , Bengong Zhang , Tianshou Zhou , Guo-Wei Wei

Cancer cell response to targeted therapy arises from complex molecular interactions, making single omics insufficient for accurate prediction. This study develops a model to predict Dabrafenib sensitivity by integrating multiple omics…

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