Results 11 to 20 of about 935,449 (290)

The Potential of a Protein Model Synthesized Absent of Methionine

open access: yesMolecules, 2022
Methionine is an amino acid long thought to be essential, but only in the case of protein synthesis initiation. In more recent years, methionine has been found to play an important role in antioxidant defense, stability, and modulation of cell and ...
Ronald J. Savino   +2 more
doaj   +1 more source

Evaluation of Rhenium and Technetium-99m Complexes Bearing Quinazoline Derivatives as Potential EGFR Agents

open access: yesMolecules, 2023
Τhe Epidermal Growth Factor Receptor tyrosine kinase inhibitor (EGFR-TKI) 6-amino-4-[(3-bromophenyl) amino]quinazoline was derivatized with 6-bromohexanoyl-chloride and coupled with the tridentate chelating agents N-(2-pyridylmethyl) aminoethyl acetic ...
Konstantina Makrypidi   +9 more
doaj   +1 more source

Synthesis, screening, and sequencing of cysteine-rich one-bead one-compound peptide libraries. [PDF]

open access: yes, 2008
Cysteine-rich peptides are valued as tags for biarsenical fluorophores and as environmentally important reagents for binding toxic heavy metals. Due to the inherent difficulties created by cysteine, the power of one-bead one-compound (OBOC) libraries has
Greaves, John   +3 more
core   +2 more sources

Voltammetric Electrochemical Behavior of Carbon Paste Electrode Containing Intrinsic Silver for Determination of Cysteine

open access: yesChemosensors, 2022
In this paper, the electrochemical behavior of cysteine is described, using carbon paste electrodes (CPEs) modified with ternary silver-copper sulfide containing intrinsic silver at two pH values (pH 3 and 5).
Maša Buljac   +4 more
doaj   +1 more source

Cell signaling promoting protein carbonylation does not cause sulfhydryl oxidation: implications to the mechanism of redox signaling [PDF]

open access: yes, 2017
Reactive oxygen species (ROS) have been recognized as second messengers, however, targeting mechanisms for ROS in cell signaling have not been defined.
Almansour, Faisal   +4 more
core   +3 more sources

The versatile utility of cysteine as a target for cancer treatment

open access: yesFrontiers in Oncology, 2023
Owing to its unique nucleophilicity, cysteine is an attractive sulfhydryl-containing proteinogenic amino acid. It is also utilized in various metabolic pathways and redox homeostasis, as it is used for the component of major endogenous antioxidant ...
Jin-Young Min   +2 more
doaj   +1 more source

In vitro and in vivo anthelmintic efficacy of plant cysteine proteinases against the rodent gastrointestinal nematode, Trichuris muris [PDF]

open access: yes, 2006
We examined the mechanism of action and compared the anthelmintic efficacy of cysteine proteinases from papaya, pineapple, fig, kiwi fruit and Egyptian milkweed in vitro using the rodent gastrointestinal nematode Heligmosomoides polygyrus.
Behnke, J.M.   +4 more
core   +3 more sources

Proteome-wide analysis of cysteine oxidation reveals metabolic sensitivity to redox stress [PDF]

open access: yes, 2018
Reactive oxygen species (ROS) are increasingly recognised as important signalling molecules through oxidation of protein cysteine residues. Comprehensive identification of redox-regulated proteins and pathways is crucial to understand ROS-mediated events.
Gottlieb, Eyal   +4 more
core   +2 more sources

An ATP-binding cassette-type cysteine transporter in Campylobacter jejuni inferred from the structure of an extracytoplasmic solute receptor protein [PDF]

open access: yes, 2005
Campylobacter jejuni is a Gram-negative food-borne pathogen associated with gastroenteritis in humans as well as cases of the autoimmune disease Guillain Barre syndrome. C.
Altekruse   +61 more
core   +1 more source

Structure-based Discovery of Novel Small Molecule Wnt Signaling Inhibitors by Targeting the Cysteine-rich Domain of Frizzled. [PDF]

open access: yes, 2015
Frizzled is the earliest discovered glycosylated Wnt protein receptor and is critical for the initiation of Wnt signaling. Antagonizing Frizzled is effective in inhibiting the growth of multiple tumor types.
Baday, Yiressy C   +9 more
core   +2 more sources

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