Results 81 to 90 of about 127,473 (347)

Dual‐Selective Terahertz‐Nanodisc Metasurfaces for Exploring Neurotransmitter Dynamics beyond Spectral Limitations

Advanced Materials, EarlyView.
Observation and detection of neurotransmitter dynamics in aqueous system has been hurdle for analytical fields due to its weak and reversible nature. A terahertz‐nanodisc metasurface which implements comprehensive detection over conformational change and selective sensing is introduced. Utilizing the THz regime photonics and biomimetic environment with
Taeyeon Kim, Yeon Kyung Lee, Yeeun Roh, Jaehun Park, Yong‐Sang Ryu, Hyun Seok Song, Minah Seo   +6 more
wiley   +1 more source

Multiple conformations in solution of the maize C4-phosphoenolpyruvate carboxylase isozyme

Heliyon, 2021
The photosynthetic phosphoenolpyruvate carboxylase isozyme from C4 plants (PEPC-C4) has a complex allosteric regulation, involving positive cooperativity in binding the substrate phosphoenolpyruvate as well as positive and negative allosteric effectors ...
Fátima Barreda-Huerta, Ismael Bustos-Jaimes, Carlos Mújica-Jiménez, Rosario A. Muñoz-Clares   +3 more
doaj  

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

Doing justice to allosteric regulation

Comptes Rendus. Biologies, 2015
Jacques Monod gave us not only our first regulatory system, but also our first smart molecules - i.e., he gave us allosteric proteins. But both of these contributions hung in a certain tension with his primary commitments. In particular, I focus here on the ways in which his ontological commitments constrained his thinking about the power of allostery.
openaire   +3 more sources

Loss of NR2F6 Protects from Salmonella Typhimurium Infection

Advanced Science, EarlyView.
Loss of nuclear receptor NR2F6 reduces tissue‐resident macrophage populations. Nr2f6‐deficient mice are protected from weight loss and bacterial load during infection with Salmonella Typhimurium. Pro‐inflammatory cytokines and iron levels are altered in infected Nr2f6‐deficient mice.
Johannes Woelk, Christa Pfeifhofer‐Obermair, Julia Benz, Natascha Brigo, Milena Bamberger, Alexeja Kleiter, Martin Hermann, Guenter Weiss, Natascha Hermann‐Kleiter   +8 more
wiley   +1 more source

The Energetics of Molecular Adaptation in Transcriptional Regulation [PDF]

, 2019
Mutation is a critical mechanism by which evolution explores the functional landscape of proteins. Despite our ability to experimentally inflict mutations at will, it remains difficult to link sequence-level perturbations to systems-level responses. Here,
Barnes, Stephanie L., Belliveau, Nathan M., Chure, Griffin, Einav, Tal, Kaczmarek, Zofii, Lewis, Mitchell, Phillips, Rob, Razo-Mejia, Manuel   +7 more
core   +1 more source

Supporting the identification of novel fragment-based positive allosteric modulators using a supervised molecular dynamics approach: A retrospective analysis considering the human A2A adenosine receptor as a key example [PDF]

, 2017
Structure-driven fragment-based (SDFB) approaches have provided efficient methods for the identification of novel drug candidates. This strategy has been largely applied in discovering several pharmacological ligand classes, including enzyme inhibitors ...
Deganutti, Giuseppe, Moro, Stefano
core   +1 more source

Bilirubin Targeting WNK1 to Alleviate NLRP3‐Mediated Neuroinflammation

Advanced Science, EarlyView.
At physiological concentrations, bilirubin binds to the kinase domain of WNK1, thereby augmenting its activity and facilitating the phosphorylation of downstream SPAK/OSR1. This phosphorylation inhibits KCC2 activity, leading to elevate intracellular chloride levels in neurons.
Linfei Mao, Jiayu Lu, Quanjun Yang, Zhenqi Liu, Cuiping Wu, Bingbing Ke, Kaiyan Su, Haolin Yuan, Yaqi Cui, Yao Wang, Richard Salvi, Guang Yang, Shankai Yin, Feng Liu, Chunyan Li   +14 more
wiley   +1 more source

Engineering Electron Transfer Flux between Cytochrome P450 Enzyme and P450 Reductase to Enhance Serotonin Production in Escherichia Coli

Advanced Science, EarlyView.
The electron transfer flux in CPR‐P450 catalytic system is systematically engineered through: i) enhancing electron transfer rate by redesigning the putative electron transfer pathway of CPR; ii) improving electron‐receiving rate by evolving the heme domain of tryptophan‐5‐hydroxylase (T5H); iii) enlarging electron supply by fine‐tuning NADPH synthesis.
Wenzhao Xu, Pengling Wei, Lirong Chen, Ling Gao, Xiaole Xia   +4 more
wiley   +1 more source

A comprehensive ensemble model for comparing the allosteric effect of ordered and disordered proteins.

PLoS Computational Biology, 2018
Intrinsically disordered proteins/regions (IDPs/IDRs) are prevalent in allosteric regulation. It was previously thought that intrinsic disorder is favorable for maximizing the allosteric coupling.
Luhao Zhang, Maodong Li, Zhirong Liu
doaj   +1 more source