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Iron-histidine Coordination in Cytochrome b5: A Local Vibrational Mode Study.
Chemphyschem
January 2025
Southern Methodist University, Chemistry, 3251 Daniel Ave, 75275, Dallas, UNITED STATES.
We analyzed the intrinsic strength of distal and proximal FeN bonds and the stiffness of the axial NFeN bond angle in a series of cytochrome b5 proteins isolated from various species, including bacteria, animals, and humans. Ferric and ferrous oxidation states were considered. As assess- ment tool, we employed local vibrational stretching force constants ka(FeN) and bending force constants ka(NFeN) derived from our local mode theory.
View Article and Find Full Text PDFMetabolic Flexibility and Essentiality of the Tricarboxylic Acid Cycle in .
ACS Infect Dis
January 2025
Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India.
The complete tricarboxylic acid (TCA) cycle, comprising a series of 8 oxidative reactions, occurs in most eukaryotes in the mitochondria and in many prokaryotes. The net outcome of these 8 chemical reactions is the release of the reduced electron carriers NADH and FADH, water, and carbon dioxide. The parasites of the .
View Article and Find Full Text PDFEffect of glutathione reductase on photosystem II characterization and reactive oxygen species metabolism in cotton cytoplasmic male sterile line Jin A.
Plant J
January 2025
College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.
Glutathione reductase (GR) maintains the cellular redox state by reducing oxidized glutathione to glutathione (GSH), which regulates antioxidant defense. Additionally, GR plays an essential role in photosynthesis; however, the mechanism by which GR regulates photosystem II (PSII) is largely unknown. We identified six, three, and three GR genes in Gossypium hirsutum, Gossypium arboreum, and Gossypium raimondii, respectively.
View Article and Find Full Text PDFSmaller sizes of polyethylene terephthalate microplastics mainly stimulate heterotrophic NO production in aerobic granular sludge systems.
Water Res X
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School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China.
Widespread polyethylene terephthalate microplastics (PET MPs) have played unintended role in nitrous oxide (NO) turnovers (i.e., production and consumption) at wastewater treatment plants (WWTPs).
View Article and Find Full Text PDFNutraceutical Impact of Pumpkin Seed Oil on Expression Levels of EZH-2 and KRT-14 Genes against DSS-induced Inflammatory Bowel Disease in the Rat Model.
Cell Biochem Biophys
January 2025
Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt.
Inflammatory bowel disease is a collection of intestinal disorders that cause inflammation in the digestive tract. Prolonged inflammation in the gastrointestinal tract is a major risk factor for colorectal cancer. The objective of this study was to fucus on gene expression levels of (KRT-14; associated with epithelial cell integrity) and enhancer of zeste homolog-1 (EZH-2; involved in cellular proliferation) in a IBD rat model in order to rule out impact of nutraceuticals (pumpkin seed oil; PSO) as a complementary approach to conventional treatments of IBD.
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