Results 31 to 40 of about 20,846 (213)

Piperlongumine Inhibits Thioredoxin Reductase 1 by Targeting Selenocysteine Residues and Sensitizes Cancer Cells to Erastin

open access: yesAntioxidants, 2022
Piperlongumine, a natural alkaloid substance extracted from the fruit of the long pepper (Piper longum Linn.), is known to inhibit the cytosolic thioredoxin reductase (TXNRD1 or TrxR1) and selectively kill cancer cells. However, the details and mechanism
Yijia Yang   +7 more
doaj   +1 more source

REPARATION : ribosome profiling assisted (re-)annotation of bacterial genomes [PDF]

open access: yes, 2017
Prokaryotic genome annotation is highly dependent on automated methods, as manual curation cannot keep up with the exponential growth of sequenced genomes.
Giess, Adam   +5 more
core   +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

Mechanisms Affecting the Biosynthesis and Incorporation Rate of Selenocysteine

open access: yesMolecules, 2021
Selenocysteine (Sec) is the 21st non-standard proteinogenic amino acid. Due to the particularity of the codon encoding Sec, the selenoprotein synthesis needs to be completed by unique mechanisms in specific biological systems.
Jing-Jing Peng   +4 more
doaj   +1 more source

Selenocysteine: the 21st amino acid [PDF]

open access: yesMolecular Microbiology, 1991
SummaryGreat excitement was elicited in the field of selenium biochemistry in 1986 by the parallel discoveries that the genes encoding the selenoproteins glutathione peroxidase and bacterial formate dehydrogenase each contain an in‐frame TGA codon within their coding sequence.
A, Böck   +6 more
openaire   +2 more sources

Probing pattern and dynamics of disulfide bridges using synthesis and NMR of an ion channel blocker peptide toxin with multiple diselenide bonds [PDF]

open access: yes, 2016
Anuroctoxin (AnTx), a 35-amino-acid scorpion toxin containing four disulfide bridges, is a high affinity blocker of the voltage-gated potassium channel Kv1.3, but also blocks Kv1.2.
Bartok, Adam   +9 more
core   +2 more sources

Cysteine transport through excitatory amino acid transporter 3 (EAAT3) [PDF]

open access: yes, 2014
Excitatory amino acid transporters (EAATs) limit glutamatergic signaling and maintain extracellular glutamate concentrations below neurotoxic levels. Of the five known EAAT isoforms (EAATs 1-5), only the neuronal isoform, EAAT3 (EAAC1), can efficiently ...
Amara, SG   +3 more
core   +10 more sources

The single-nucleotide polymorphism (GPX4c718t) in the glutathione peroxidase 4 gene influences endothelial cell function : Interaction with selenium and fatty acids [PDF]

open access: yes, 2013
© 2013 The Authors. Molecular Nutrition & Food Research published by Wiley-VCH Verlag GmbH & Co.
Akbaraly   +31 more
core   +2 more sources

Dual incorporation of non-canonical amino acids enables production of post-translationally modified selenoproteins

open access: yesFrontiers in Molecular Biosciences, 2023
Post-translational modifications (PTMs) can occur on almost all amino acids in eukaryotes as a key mechanism for regulating protein function. The ability to study the role of these modifications in various biological processes requires techniques to ...
Pearl Morosky   +8 more
doaj   +1 more source

Selenocysteine modulates resistance to environmental stress and confers anti-aging effects in C. elegans

open access: yesClinics
OBJECTIVE: The free radical theory of aging suggests that cellular oxidative damage caused by free radicals is a leading cause of aging. In the present study, we examined the effects of a well-known anti-oxidant amino acid derivative, selenocysteine, in ...
Jun-Sung Kim   +2 more
doaj   +1 more source

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