Results 1 to 10 of about 11,168 (173)

Going Forward and Back: The Complex Evolutionary History of the GPx

open access: yesBiology, 2021
There is large diversity among glutathione peroxidase (GPx) enzymes regarding their function, structure, presence of the highly reactive selenocysteine (SeCys) residue, substrate usage, and reducing agent preference.
Thomaz Stumpf Trenz   +5 more
doaj   +1 more source

Morphological and Physiological Indicators and Transcriptome Analyses Reveal the Mechanism of Selenium Multilevel Mitigation of Cadmium Damage in Brassica juncea

open access: yesPlants, 2023
Cadmium (Cd) is a common agricultural soil pollutant, which does serious harm to the environment and the human body. In this study, Brassica juncea was treated with different concentrations of CdCl2 and Na2SeO3.
Linling Li   +6 more
doaj   +1 more source

Harnessing ferroptosis from multilayer defense networks to nanoplatforms for specific cancer therapy

open access: yesBMEMat, EarlyView.
Nanomaterials target metabolically‐regulated ferroptosis for cancer therapy. Iron‐based or alternative nanoplatforms integrate ferroptosis with chemotherapy, immunotherapy, or radiotherapy. They enable stimulus‐responsive therapies (photothermal, photodynamic, sonodynamic) activated by near‐infrared, light, or ultrasound, achieving potent synergistic ...
Xinyue Xu   +5 more
wiley   +1 more source

Selenol Protecting Groups in Organic Chemistry: Special Emphasis on Selenocysteine Se-Protection in Solid Phase Peptide Synthesis

open access: yesMolecules, 2011
The appearance of selenium in organic synthesis is relatively rare, and thus examples in the literature pertaining to the masking of its considerable reactivity are similarly uncommon.
Stevenson Flemer Jr.
doaj   +1 more source

Selenium in the Treatment of Graves’ Hyperthyroidism and Eye Disease

open access: yesFrontiers in Endocrinology, 2021
Based on the role of oxidative stress in the pathogenesis of Graves’ hyperthyroidism (GH) and Graves’ Orbitopathy (GO), a therapy with the antioxidant agent selenium has been proposed and a number of studies have been performed, both in vitro and in vivo.
Giulia Lanzolla   +2 more
doaj   +1 more source

Synthetic Strategies for Activity‐Based Probes to Decode Ubiquitin‐Like Modifiers

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT Ubiquitin‐like proteins (Ubls) such as SUMO, NEDD8, ISG15, URM1, UFM1, FAT10, ATG8/ATG12, and FUBI are essential regulators of cellular homeostasis, controlling processes from protein stability and trafficking to immune signaling and autophagy.
Saibal Chanda   +5 more
wiley   +1 more source

A Crystalline and Thermally Stable Selenocysteine Selenenic Acid

open access: yesAngewandte Chemie, Volume 138, Issue 32, 3 August 2026.
The long‐sought catalytic intermediate of selenoproteins, selenocysteine selenenic acid (Sec–SeOH), is isolated for the first time at ambient temperature. A bioinspired selenopeptide sequence encapsulated within a protective molecular cradle and an oxidant‐free route from selenenyl iodide (Sec–SeI) enable the isolation of Sec–SeOH. Contrary to the long‐
Ryosuke Masuda, Satoru Kuwano, Kei Goto
wiley   +2 more sources

Identification of the Selenoprotein S Positive UGA Recoding (SPUR) element and its position-dependent activity

open access: yesRNA Biology
Selenoproteins are a unique class of proteins that contain the 21st amino acid, selenocysteine (Sec). Addition of Sec into a protein is achieved by recoding of the UGA stop codon. All 25 mammalian selenoprotein mRNAs possess a 3′ UTR stem-loop structure,
Eric M. Cockman   +5 more
doaj   +1 more source

Programmed Deviations of Ribosomes From Standard Decoding in Archaea

open access: yesFrontiers in Microbiology, 2021
Genetic code decoding, initially considered to be universal and immutable, is now known to be flexible. In fact, in specific genes, ribosomes deviate from the standard translational rules in a programmed way, a phenomenon globally termed recoding ...
Federica De Lise   +12 more
doaj   +1 more source

Synthesis of Oligonucleotide Conjugates Employing a Diselenide Linker

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT In this study, we report the synthesis of an alkylene linker containing a terminal 2‐cyanoethyl protected selenium functionality for coupling at the 5'‐end of an oligonucleotide by solid phase synthesis for the preparation of oligonucleotide conjugates.
Shivam Tikoo   +2 more
wiley   +1 more source

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