Results 21 to 30 of about 11,591 (176)

Assessment of reagents for selenocysteine conjugation and the stability of selenocysteine adducts [PDF]

open access: yesOrganic & Biomolecular Chemistry, 2016
The allenamide functional group reacts with selenocysteine with notably high efficiency, leads to antibody conjugates with remarkable stability, and shows exquisite selectivity for selenocysteine conjugation.
Lee, Pedzisa   +3 more
openaire   +2 more sources

Selenium Metabolism and Selenoproteins in Prokaryotes: A Bioinformatics Perspective

open access: yesBiomolecules, 2022
Selenium (Se) is an important trace element that mainly occurs in the form of selenocysteine in selected proteins. In prokaryotes, Se is also required for the synthesis of selenouridine and Se-containing cofactor. A large number of selenoprotein families
Yan Zhang   +5 more
doaj   +1 more source

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

On the road to selenocysteine [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
Decades ago, a mammalian tRNA that exclusively bound the UGA stop codon was identified by using the triplet binding assay that was instrumental in deciphering the genetic code (1). The possibility of a naturally occurring suppressor tRNA presented the dilemma of explaining the biological function of such a molecule.
openaire   +2 more sources

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

Crystal structures of the human elongation factor eEFSec suggest a non-canonical mechanism for selenocysteine incorporation

open access: yesNature Communications, 2016
Specialized translation elongation factors (eEFSec and SelB) promote selenocysteine incorporation into proteins. Here, the authors report the structure of human eEFSec, examine its interactions with guanine nucleotides, and propose a non-canonical ...
Malgorzata Dobosz-Bartoszek   +6 more
doaj   +1 more source

Evaluation of Chemical Strategies for Improving the Stability and Oral Toxicity of Insecticidal Peptides

open access: yesBiomedicines, 2018
Spider venoms are a rich source of insecticidal peptide toxins. Their development as bioinsecticides has, however, been hampered due to concerns about potential lack of stability and oral bioactivity.
Volker Herzig   +11 more
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

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

An Ecological Basis for Dual Genetic Code Expansion in Marine Deltaproteobacteria

open access: yesFrontiers in Microbiology, 2021
Marine benthic environments may be shaped by anthropogenic and other localized events, leading to changes in microbial community composition evident decades after a disturbance.
Veronika Kivenson   +2 more
doaj   +1 more source

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