Results 191 to 200 of about 46,151 (247)

Measurement of Thioredoxin and Thioredoxin Reductase

Current Protocols in Toxicology, 2005
AbstractThe thioredoxin system is ubiquitous, providing reducing equivalents to essential biosynthetic enzymes like ribonucleotide reductase. It is essential for cellular redox regulation, control of oxidative stress, and protection against oxidative damage.
E S, Arnér, A, Holmgren
openaire   +2 more sources

Thioredoxin Reductase

Archives of Dermatology, 1987
• Membrane-associated thioredoxin reductase (TR) has been discovered to reduce free radicals at the surface of the skin. An accurate bioassay for this enzyme has been developed by using a spin-labeled quaternary ammonium salt as a free radical substrate. Enzyme activity has been correlated with the surface area, and units of specific activity have been
openaire   +1 more source

Thioredoxins and thioredoxin reductase in chloroplasts: A review

Gene, 2019
The chloroplastic thioredoxins (Trxs), a family of thiol-disulphide oxidoreductases, are reduced by either ferredoxin (Fd)-dependent Trx reductase (FTR) or reduced nicotinamide adenine dinucleotide phosphate (NADPH)-dependent Trx reductase (NTR). Two Trx systems are present in chloroplasts including Trxs, Trx-like proteins, and reductase FTR and NTRC ...
Zhenhui Kang, Tong Qin, Zhiping Zhao
openaire   +2 more sources

Thioredoxin Reductase−Thioredoxin Fusion Enzyme from Mycobacterium leprae:  Comparison with the Separately Expressed Thioredoxin Reductase

Biochemistry, 1998
Thioredoxin reductase (TrxR) catalyzes the reduction of thioredoxin (Trx) by NADPH. A unique gene organization of TrxR and Trx has been found in Mycobacterium leprae, where TrxR and Trx are encoded by a single gene and, therefore, are expressed as a fusion protein (MlTrxR-Trx). This fusion enzyme is able to catalyze the reduction of thioredoxin or 5,5'-
P F, Wang   +3 more
openaire   +2 more sources

Kinetics of electron transfer from thioredoxin reductase to thioredoxin

Biochemistry, 1991
The reduction of Escherichia coli thioredoxin by thioredoxin reductase was studied by stopped-flow spectrophotometry. The reaction showed no dependence on thioredoxin concentration, indicating that complex formation was rapid and occurred during the dead time of the instrument.
J A, Navarro   +5 more
openaire   +2 more sources

Cytosolic, Mitochondrial Thioredoxins and Thioredoxin Reductases in Arabidopsis Thaliana

Photosynthesis Research, 2004
Thioredoxins, by reducing disulfide bridges are one of the main participants that regulate cellular redox balance. In plants, the thioredoxin system is particularly complex. The most well-known thioredoxins are the chloroplastic ones, that participate in the regulation of enzymatic activities during the transition between light and dark phases.
Bréhélin, Claire   +4 more
openaire   +3 more sources

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