Results 91 to 100 of about 8,200 (237)

Mechanism of molybdate insertion into pterin-based molybdenum cofactors. [PDF]

open access: yesNat Chem, 2021
Probst C   +11 more
europepmc   +1 more source

Selective targeting of cortactin tandem repeat acetylation by human lysine deacetylases

open access: yesThe FEBS Journal, EarlyView.
Cortactin function is regulated by acetylation at several lysine residues within its tandem repeat region. Using genetic code expansion to generate cortactin variants containing precisely defined acetylation marks, we show that HDAC6 is the primary enzyme removing these modifications, with SIRT1 and SIRT2 also acting at selected sites but with lower ...
Jan Komarek   +12 more
wiley   +1 more source

Energetic stress in combination with impaired fatty acid oxidation induces sequestration of CoA and adaptation of CoA metabolism

open access: yesThe FEBS Journal, EarlyView.
Computational modelling and in vitro liver cell experiments indicate that medium‐chain acyl‐CoA dehydrogenase (MCAD) deficiency causes an accumulation of (especially medium‐chain) acyl‐CoAs at the cost of free CoA (CoASH). A substantial decrease in CoASH impairs flux through many pathways essential for energy homeostasis.
Ligia Akemi Kiyuna   +17 more
wiley   +1 more source

Insights into the catalytic mechanism of formate dehydrogenases from different microbial sources

open access: yesThe FEBS Journal, EarlyView.
This integrated study combines experimental enzyme kinetics with QM/MM simulations to map the catalytic mechanisms of four formate dehydrogenases at the atomic level. This approach reveals the key determinants of catalytic efficiency and guides the rational design of biocatalysts for effective CO2 reduction—a crucial step towards sustainable ...
Laura Legnani   +8 more
wiley   +1 more source

On the enzymatic mechanism of 2-hydroxyisocaproyl-CoA dehydratase from Clostridium difficile [PDF]

open access: yes, 2004
Die Gene ldhA und hadA aus Clostridium difficile (DSMZ 1296T) wurden kloniert und in Escherichia coli exprimiert. Die erhaltenen Proteine wurden gereinigt und als D-2-Hydroxyisocaproat-Dehydrogenase (LdhA) und 2-Hydroxyisocaproat-CoA-Transferase (HadA)
Buckel Wolfgang (Prof. Dr.), Kim Ji-Hoe
core   +1 more source

Quantitative analysis of DNA‐GATA1 binding alterations linked to hematopoietic disorders

open access: yesThe FEBS Journal, EarlyView.
Native holdup allows the quantitative determination of affinities between full‐length transcription factors and DNA. Mutations in either the protein or the DNA can modulate binding strength, which can be precisely quantified using this approach. Applied to GATA1, it revealed mutations that alter DNA binding.
Boglarka Zambo   +6 more
wiley   +1 more source

Demonstration of asymmetric electron conduction in pseudosymmetrical photosynthetic reaction centre proteins in an electrical circuit [PDF]

open access: yes, 2015
Photosynthetic reaction centres show promise for biomolecular electronics as nanoscale solar-powered batteries and molecular diodes that are amenable to atomic-level re-engineering.
Aartsma, Thijs J   +5 more
core   +2 more sources

Effect of Two Therapeutic Renal Diets on Hormonal and Regulatory Pathways Affecting Calcium Homeostasis in Cats With Early‐Stage Chronic Kidney Disease

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Chronic kidney disease (CKD) is a known risk factor for hypercalcemia in cats. Phosphate‐restricted diets have also been implicated in causing hypercalcemia, in part because phosphate restriction increases the Ca:P ratio. The primary objective of this study was to evaluate the impact of two different therapeutic renal foods on ionized (iCa ...
Jean A. Hall   +4 more
wiley   +1 more source

Nitrogenase FeMoco investigated by spatially resolved anomalous dispersion refinement [PDF]

open access: yes, 2016
The [Mo:7Fe:9S:C] iron-molybdenum cofactor (FeMoco) of nitrogenase is the largest known metal cluster and catalyses the 6-electron reduction of dinitrogen to ammonium in biological nitrogen fixation.
Andrade, Susana L. A.   +7 more
core   +3 more sources

GmSNAP14: a key contributor to soybean cyst nematode resistance in soybean

open access: yesNew Phytologist, EarlyView.
Summary Soybean (Glycine max) plants counteract soybean cyst nematode (SCN, Heterodera glycines Ichinohe) infection through an impairment of soluble N‐ethylmaleimide‐sensitive factor (NSF) attachment protein (α‐SNAP) – NSF interactions and vesicular trafficking leading to cellular toxicity in response to nematode feeding.
Vinavi A. Gamage   +9 more
wiley   +1 more source

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