Results 71 to 80 of about 1,102,167 (387)

Cysteinyl-tRNA synthetase governs cysteine polysulfidation and mitochondrial bioenergetics

open access: yesNature Communications, 2017
Cysteine hydropersulfide (CysSSH) occurs in abundant quantities in various organisms, yet little is known about its biosynthesis and physiological functions.
T. Akaike   +25 more
semanticscholar   +1 more source

On the selection and design of proteins and peptide derivatives for the production of photoluminescent, red-emitting gold quantum clusters [PDF]

open access: yes, 2013
Novel pathways of the synthesis of photoluminescent gold quantum clusters (AuQCs) using biomolecules as reactants provide biocompatible products for biological imaging techniques.
A Baksi   +48 more
core   +2 more sources

Non-enzymatic hydrogen sulfide production from cysteine in blood is catalyzed by iron and vitamin B6

open access: yesCommunications Biology, 2019
Hydrogen sulfide (H2S) plays important roles in metabolism and health. Its enzymatic generation from sulfur-containing amino acids (SAAs) is well characterized. However, the existence of non-enzymatic H2S production from SAAs, the chemical mechanism, and
Jie Yang   +6 more
semanticscholar   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Cysteine proteinase C1A paralog profiles correspond with phylogenetic lineages of pathogenic piroplasmids [PDF]

open access: yes, 2018
Piroplasmid parasites comprising of Babesia, Theileria, and Cytauxzoon are transmitted by ticks to farm and pet animals and have a significant impact on livestock industries and animal health in tropical and subtropical regions worldwide.
Ascencio, Mariano E.   +5 more
core   +4 more sources

Cysteine homeostasis.

open access: yes, 2015
of essential biomolecules, such as vitamins, cofactors, antioxidants and many defence compounds, that are formed in response to adverse environmental conditions in which the sulfur moiety is the functional group. Sulfate is transported inside the plant, reduced to sulfide and incorporated into O-acetylserine (OAS) to form cysteine.
García, Irene   +2 more
openaire   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

A Highly Sensitive and Selective Competition Assay for the Detection of Cysteine Using Mercury-Specific DNA, Hg2+ and Sybr Green I

open access: yesSensors, 2011
We here report a rapid, sensitive, selective and label-free fluorescence detection method for cysteine (Cys). The conformation of mercury-specific DNA (MSD) changes from a random coil form to a hairpin structure in the presence of Hg2+ due to the ...
Gang Liu   +8 more
doaj   +1 more source

Indirect Routes to Aminoacyl-tRNA: The Diversity of Prokaryotic Cysteine Encoding Systems

open access: yesFrontiers in Genetics, 2022
Universally present aminoacyl-tRNA synthetases (aaRSs) stringently recognize their cognate tRNAs and acylate them with one of the proteinogenic amino acids.
Takahito Mukai   +7 more
doaj   +1 more source

Selective glucocorticoid receptor properties of GSK866 analogs with cysteine reactive warheads [PDF]

open access: yes, 2017
Synthetic glucocorticoids (GC) are the mainstay therapy for treatment of acute and chronic inflammatory disorders. Due to the high adverse effects associated with long-term use, GC pharmacology has focused since the nineties on more selective GC ligand ...
Atucha   +61 more
core   +2 more sources

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