Results 51 to 60 of about 19,917 (239)

Full-length nuclear receptor allosteric regulation

open access: yesJournal of Lipid Research, 2023
Nuclear receptors are a superfamily of transcription factors regulated by a wide range of lipids that include phospholipids, fatty acids, heme-based metabolites, and cholesterol-based steroids. Encoded as classic two-domain modular transcription factors,
Woong Jae Choi   +2 more
doaj  

Allosteric regulation of substrate channeling: Salmonella typhimurium tryptophan synthase

open access: yesFrontiers in Molecular Biosciences, 2022
The regulation of the synthesis of L-tryptophan (L-Trp) in enteric bacteria begins at the level of gene expression where the cellular concentration of L-Trp tightly controls expression of the five enzymes of the Trp operon responsible for the synthesis ...
Rittik K. Ghosh   +4 more
doaj   +1 more source

Eigenvector Centrality Distribution for Characterization of Protein Allosteric Pathways [PDF]

open access: yes, 2017
Determining the principal energy pathways for allosteric communication in biomolecules, that occur as a result of thermal motion, remains challenging due to the intrinsic complexity of the systems involved. Graph theory provides an approach for making sense of such complexity, where allosteric proteins can be represented as networks of amino acids.
arxiv   +1 more source

UDP‐glucose dehydrogenase variants cause dystroglycanopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Abstract UDP‐glucose dehydrogenase (UGDH) variants have been associated with hypotonia, developmental delay, and epilepsy. We report the first pathologic evidence of dystroglycanopathy in siblings with UGDH variants. Both presented around 6 months with developmental delay and elevated creatinine kinase.
Anna M. Reelfs   +8 more
wiley   +1 more source

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

open access: yesPLoS 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

Cortical Excitability Before and After Long‐Term Perampanel Treatment for Epilepsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Antiseizure medications (ASMs), which may influence cortical excitability, are the mainstay of epilepsy treatment. Transcranial magnetic stimulation (TMS) helps evaluate cortical excitability. We assessed changes in TMS responses using serial TMS measurements in people treated with an adjunctive noncompetitive AMPA‐receptor ...
Robert M. Helling   +6 more
wiley   +1 more source

The matrix metalloproteinase 7 (MMP7) links Hsp90 chaperone with acquired drug resistance and tumor metastasis

open access: yesCancer Reports, Volume 5, Issue 12, December 2022., 2022
Abstract Background Cancer emergence is associated with a series of cellular transformations that include acquired drug resistance followed by tumor metastasis. Matrix metalloproteinases (MMPs) and Hsp90 chaperone are implicated in tumor progression, however, they are not studied in the context of drug resistance. Aims In the present study, we aimed at
Pankaj Kumar   +2 more
wiley   +1 more source

Molecular Stiffening by Macrocycle Clustering

open access: yesAngewandte Chemie, EarlyView.
Macrocyclic hosts can remotely rigidify part of a molecule, implying that this part need not be included inside a macrocycle to be stiffened. Here, we show that multiple binding by synthetic hosts CB[7] and CB[8] can selectively rigidify fragments of a tetratopic molecule in water causing a gradual stiffening from the periphery to the core.
Hang Yin   +11 more
wiley   +2 more sources

Novel allosteric inhibition of phosphoribulokinase identified by ensemble kinetic modeling of Synechocystis sp. PCC 6803 metabolism

open access: yesMetabolic Engineering Communications, 2020
The present study attempted a computer simulation of the metabolism of a model cyanobacteria, Synechocystis sp. PCC 6803 (PCC 6803) to predict allosteric inhibitions that are likely to occur in photoautotrophic and mixotrophic conditions as well as in a ...
Hiroki Nishiguchi   +3 more
doaj  

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

open access: yesHeliyon, 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   +3 more
doaj  

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