The reduction potential of the (FADH-/FADH*) couple in DNA photolyase was measured, and the value was found to be significantly higher than the values estimated in the literature. In the absence of substrate, the enzyme has a reduction potential of 16 +/- 6 mV vs NHE. In the presence of excess substrate the reduction potential increases to 81 +/- 8 mV vs NHE. The increase in reduction potential has physiological relevance since it gives the catalytic state greater resistance to oxidation. This is the first measurement of a reduction potential for this class of DNA-repair enzymes and the larger family of blue-light photoreceptors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/ja051441r | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Yoga Techniques Associated with Improved Insulin Resistance in Women with PCOS: A Pilot Study.
Int J Yoga Therap
December 2024
Central Research Institute of Yoga and Naturopathy, Rohini, Delhi, India.
Polycystic ovary syndrome (PCOS), a complex heterogenic disease of unknown etiology, is the most common endocrine disorder in women of reproductive age. Sufferers often exhibit significant insulin resistance, glucose intolerance, obesity, and dyslipidemia. There is no cure for PCOS, although metformin and weight reduction have shown some benefits.
View Article and Find Full Text PDFInhibition of Retinal Neovascularization by BEZ235: Targeting the Akt/4EBP1/Cyclin D1 Pathway in Endothelial Cells.
Invest Ophthalmol Vis Sci
January 2025
Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, China.
Purpose: To investigate the therapeutic efficacy of BEZ235, a dual PI3K/mTOR inhibitor, in suppressing pathological neovascularization in an oxygen-induced retinopathy (OIR) mouse model and explore the role of cyclin D1 in endothelial cell cycle regulation.
Methods: Single-cell RNA sequencing was performed to analyze gene expression and cell-cycle alterations in retinal endothelial cells under normoxic and OIR conditions. The effects of BEZ235 on human umbilical vein endothelial cells (HUVECs) and human retinal microvascular endothelial cells (HRMECs) were evaluated by assessing cell viability, cell-cycle progression, proliferation, migration, and tube formation.
Discontinuation and Reinitiation of Dual-Labeled GLP-1 Receptor Agonists Among US Adults With Overweight or Obesity.
JAMA Netw Open
January 2025
Healthcare Transformation Institute, Department of Medical Ethics and Health Policy, Perelman School of Medicine at the University of Pennsylvania, Philadelphia.
Importance: Adherence to glucagon-like peptide-1 receptor agonists (GLP-1 RAs) is important for their effectiveness. Discontinuation and reinitiation patterns are not well understood.
Objective: To describe rates of and factors associated with discontinuation and subsequent reinitiation of GLP-1 RAs among adults with overweight or obesity.
Corticosteroids in Cardiogenic Shock: A Retrospective Analysis of the Medical Information Mart for Intensive Care-IV Database.
Crit Care Explor
February 2025
Division of Critical Care Medicine, Department of Medicine, McMaster University, Hamilton, ON, Canada.
Importance: While corticosteroid administration in septic shock has been shown to result in faster shock reversal and lower short-term mortality, the role of corticosteroids in the management of cardiogenic shock (CS) remains unexplored.
Objectives: Determine the impact of corticosteroid administration on 90-day mortality (primary outcome) in patients admitted to a critical care unit with CS.
Design, Setting, And Participants: In this retrospective cohort study, we used the critical care database of Medical Information Mart for Intensive Care-IV, and included all adult patients diagnosed with CS excluding repeated admissions, patients with adrenal insufficiency, those receiving baseline corticosteroids, and those requiring extracorporeal life support.
Statistical optimisation and analysis of biomass and exopolysaccharide production by Lacticaseibacillus rhamnosus LRH30.
World J Microbiol Biotechnol
January 2025
School of Biotechnology, Dublin City University, Dublin, D9, Ireland.
Exopolysaccharides (EPS) produced by lactic acid bacteria with immunomodulatory potential are promising natural food additives. This study employs small-scale, 250 mL bioreactors combined with a central composite design to optimise two important bioprocess parameters, namely temperature and airflow, to achieve high yields of biomass and EPS from Lacticaseibacillus rhamnosus LRH30 (L. rhamnosus LRH30).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!