Results 121 to 130 of about 38,610 (331)

Pteridines CVII* Synthesis of 6-Azidomethyl-5,6,7,8-tetrahydropterin. Photo degradation Products and Cofactor Properties on Aromatic Amino Acid Monooxygenases

Pteridines, 1995
The synthesis of 6-azidomethyl-5,6,7,8-tetrahydropterin (6-AzmH4Ptr) (9) starting from 2,4-diamino- 6-hydroxymethylpteridine (1) is described. A special protecting group strategy had to be applied to perform the structural modifications. The introduction
Heizmann Gerhard, Groehn Viola, Almås Bjørg, Haavik Jan, Flatmark Torgeir, Pfleiderer Wolfgang   +5 more
doaj   +1 more source

Mitochondria‐Nuclear Crosstalk: Orchestrating mtDNA Maintenance

Environmental and Molecular Mutagenesis, EarlyView.
ABSTRACT The mitochondria (mt) and nucleus engage in a dynamic bidirectional communication to maintain cellular homeostasis, regulating energy production, stress response, and cell fate. Anterograde signaling directs mt function, while retrograde signaling conveys metabolic and stress‐related changes from mt to the nucleus. Central to this crosstalk is
Ghazal Darfarin, Janice Pluth
wiley   +1 more source

Alkane hydroxylases involved in microbial alkane degradation [PDF]

, 2018
This review focuses on the role and distribution in the environment of alkane hydroxylases and their (potential) applications in bioremediation and biocatalysis.
Funhoff, Enrico, van Beilen, Jan
core  

Oxygen Activation by the Iron(II)-2-Mercaptobenzoic Acid Complex. A Model for Microsomal Mixed Function Oxygenases [PDF]

, 1969
Volker Ullrich
openalex   +1 more source

Inconsistent Transcriptomic Responses to Hexabromocyclododecane in Japanese Quail: A Comparative Analysis of Results From Four Different Study Designs

Environmental Toxicology and Chemistry, EarlyView.
Abstract Efforts to use transcriptomics for toxicity testing have classically relied on the assumption that chemicals consistently produce characteristic transcriptomic signatures that are reflective of their mechanism of action. However, the degree to which transcriptomic responses are conserved across different test methodologies has seldom been ...
Paul Béziers, Elena Legrand, Emily Boulanger, Niladri Basu, Jessica D. Ewald, Paula Henry, Markus Hecker, Jianguo Xia, Natalie Karouna‐Renier, Doug Crump, Jessica Head   +10 more
wiley   +1 more source

Emerging Target Discovery Strategies Drive the Decoding of Therapeutic Power of Natural Products and Further Drug Development: A Case Study of Celastrol

Exploration, EarlyView.
Using celastrol as a case study, this review summarizes various target discovery strategies for natural products, including chemical proteomics, protein microarray, degradation‐based protein profiling, proteome‐wide label‐free approaches, network pharmacology, target‐based drug screening, and indirect strategies.
Yanbei Tu, Guiyu Dai, Yanyan Chen, Lihua Tan, Hanqing Liu, Meiwan Chen   +5 more
wiley   +1 more source

Spatial Isolation of Single Copper(I) Sites for Cascade Enzyme‐Like Catalysis and Simultaneous Ferroptosis/Cuproptosis Boosted Immunotherapy

Exploration, EarlyView.
Self‐assembled S‐Cu(I)‐S sites were spatially isolated onto a two‐dimensional Ti3C2 surface to produce a structurally well‐defined and highly functional single‐site copper(I) nanomodulator CuNTD, which can induce severe immunogenic cell death through multiple regulatory pathways of synergistic cascade photothermal‐amplified ROS storms, cuproptosis and ...
Yuanyuan Zhang, Shengnan Ya, Jingnan Huang, Yangyang Ju, Xueyang Fang, Xinteng Ouyang, Qingdong Zeng, Xinyao Zhou, Xiyun Yan, Guohui Nie, Kelong Fan, Bin Zhang   +11 more
wiley   +1 more source

Inducible heme oxygenase in the kidney: a model for the homeostatic control of hemoglobin catabolism [PDF]

, 1971
Neville R. Pimstone, Peter Engel, R Tenhunen, Paul T. Seitz, Harvey S. Marver, Rudi Schmid   +5 more
openalex   +1 more source

Alfalfa Flavonoids Mitigate Salmonella‐Induced Colitis via the Keap1‐Nrf2 and TLR4/NF‐κB/COX‐2 Pathways

Food Frontiers, EarlyView.
Alfalfa flavonoids (AF) protected against Salmonella‐induced colitis by reducing inflammation and oxidative stress. AF inhibited the TLR4/IκB/NF‐κB/COX‐2 pathway and NLRP3 inflammasome, lowering pro‐inflammatory cytokines, while activating Keap1‐Nrf2 to boost antioxidants (e.g., HO‐1, NQO1, SOD, GPx), decreasing ROS‐driven oxidative stress.
Xiaoli Qin, Yan Lu, Yawen Luo, Yafang Cui, Kai Zhao, Yang He, Muhammad Aziz ur Rahman, Shengnan Min, Wenfang Wang, Fuyu Yang, Binghai Cao, Huawei Su   +11 more
wiley   +1 more source

Translation of mRNA from Rat-Liver Polysomes into Tyrosine Aminotransferase and Tryptophan Oxygenase in a Protein-Synthesizing System from Wheat Germ. Effects of Cortisol on the Translatable Levels of mRNA for These Two Enzymes [PDF]

, 1976
Walter Roewekamp, Erhard Hofer, Constantin E. Sekeris   +2 more
openalex   +1 more source