disulfide


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disulfide

[dī′səl‚fīd]
(chemistry)
A compound that has two sulfur atoms bonded to a radical or element.
One of a group of organosulfur compounds RSSR′ that may be symmetrical (R=R′) or unsymmetrical (R and R′, different).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
They demonstrated the integration of van der waal heterostructures and reported a large hysteresis effect by constructing graphene-tungsten disulfide heterostructure (GWH).
MTPFWRGVSLRPIGASCRDNSECITML CRKNRCFLRSASE; the one is linear type and the other peptide have two disulfide bonds (C17-C28, C23-C33).
Native thiol and total thiol values were measured using a new method developed by Erel and Neselioglu (17), and disulfide, disulfide/native thiol, disulfide/total thiol, and native thiol/total thiol values were calculated.
Thiols, which include a sulfhydryl (-SH) group, constitute one of the defense systems against unfavorable effects of ROS, and are the main target of ROS, being oxidized by oxidant molecules to form reversible disulfide bridges.
A new spectrophotometric technique that was previously described by Erel and Neselioglu [4] was used to establish thiol/ disulfide homeostasis.
Overweight, obese, and severely obese groups were observed to have significantly elevated native thiol and total thiol ([micro]mol/L, p<0.001) levels than in the normal weight group, while there was also a significant increase in disulfide ([micro]mol/L) levels in the overweight group compared to the normal weight (p<0.01) and obese (p<0.05) groups.
A novel, relatively cheap, readily available, and automated assay has been recently described by Erel and Neselioglu, which measures the serum total thiol and native thiol levels and calculates disulfide concentrations, so that the dynamic thiol/disulfide homeostasis can be determined (7).
Chaitan Khosla, who oversaw the new study, had conducted several studies showing that TG2 can be active or inactive, depending on the forming or breaking of a specific chemical bond, called a disulfide bond, between two amino acids in the enzyme.
Wilson, "Ascorbate oxidase, protein disulfide isomerase, ascorbic acid, dehydroascorbic acid and protein levels in developing wheat kernels and their relationship to protein disulfide bond formation," Cereal Chemistry, vol.
Denaturation and aggregation of muscle proteins during frozen storage are associated with the formation of disulfide and the interaction of lipid oxidation products with proteins [4].
Increased levels of plasma LDL, as well as the disruption of this antioxidant system by disulfide depletion, initiate the atherosclerotic process in the arterial wall.