Discovery of intramolecular signal transduction network based on a new protein dynamics model of energy dissipation. [PDF]
A novel approach to reveal intramolecular signal transduction network is proposed in this work. To this end, a new algorithm of network construction is developed, which is based on a new protein dynamics model of energy dissipation. A key feature of this
Cheng-Wei Ma, Zhi-Long Xiu, An-Ping Zeng
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Autopromotion of K-Ras4B Feedback Activation Through an SOS-Mediated Long-Range Allosteric Effect
The Ras-specific guanine nucleotide exchange factors Son of Sevenless (SOS) regulates Ras activation by converting inactive GDP-bound to active GTP-bound states.
Xuan He +9 more
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Cyclic nucleotide-gated channels: structural basis of ligand efficacy and allosteric modulation [PDF]
Most working proteins, including metabolic enzymes, transcription regulators, and membrane receptors, transporters, and ion channels, share the property of allosteric coupling. The term 'allosteric' means that these proteins mediate indirect interactions
Lester, Henry A. +2 more
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The allosteric regulation of pyruvate kinase [PDF]
Crystallographic and mutagenesis studies have unravelled the general features of the allosteric transition mechanism in pyruvate kinase. The enzyme displays a dramatic conformational change in going from the T‐ to the R‐state. All three domains forming each subunit of the tetrameric enzyme undergo simultaneous and concerted rotations, in such a way ...
MATTEVI, ANDREA +2 more
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Dimeric allostery mechanism of the plant circadian clock photoreceptor ZEITLUPE.
In Arabidopsis thaliana, the Light-Oxygen-Voltage (LOV) domain containing protein ZEITLUPE (ZTL) integrates light quality, intensity, and duration into regulation of the circadian clock.
Francesco Trozzi +4 more
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Allosteric modulation of G protein-coupled receptor signaling
G protein-coupled receptors (GPCRs), the largest family of transmembrane proteins, regulate a wide array of physiological processes in response to extracellular signals. Although these receptors have proven to be the most successful class of drug targets,
Siyuan Shen +6 more
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Dynamic allosteric control of noncovalent DNA catalysis reactions [PDF]
Allosteric modulation of catalysis kinetics is prevalent in proteins and has been rationally designed for ribozymes. Here, we present an allosteric DNA molecule that, in its active configuration, catalyzes a noncovalent DNA reaction.
Winfree, Erik, Zhang, David Yu
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Allosteric Regulation of E-Cadherin Adhesion [PDF]
Cadherins are transmembrane adhesion proteins that maintain intercellular cohesion in all tissues, and their rapid regulation is essential for organized tissue remodeling. Despite some evidence that cadherin adhesion might be allosterically regulated, testing of this has been hindered by the difficulty of quantifying altered E-cadherin binding affinity
Nitesh, Shashikanth +8 more
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Quantifying Dynamic Regulation in Metabolic Pathways with Nonparametric Flux Inference [PDF]
One of the central tasks in systems biology is to understand how cells regulate their metabolism. Hierarchical regulation analysis is a powerful tool to study this regulation at the metabolic, gene-expression, and signaling levels.
He, Fei, Stumpf, Michael P H
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The energy landscape analysis of cancer mutations in protein kinases. [PDF]
The growing interest in quantifying the molecular basis of protein kinase activation and allosteric regulation by cancer mutations has fueled computational studies of allosteric signaling in protein kinases.
Anshuman Dixit, Gennady M Verkhivker
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