Results 51 to 60 of about 19,917 (239)
Full-length nuclear receptor allosteric regulation
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
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]
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
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
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
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
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
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
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
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