Results 151 to 160 of about 260,568 (212)

Revisiting Disulfide–Yne and Disulfide–Diazonium Reactions for Potential Direct Modification of Disulfide Bonds in Proteins

The Journal of Organic Chemistry, 2022
To find their potential use in protein research, direct addition of a disulfide compound to alkyne (namely disulfide-yne reaction) and S-arylation with arenediazonium salt (namely disulfide-diazonium reaction) were investigated in aqueous or protic solutions.
Wei-Cheng Hung, Cheng-Hao Jhang, Shou-Lin Weng, Chiu-Chun Chou, Chein-Hung Chen, Jung-Lee Lin, Jim-Min Fang   +6 more
openaire   +2 more sources

Dicubyl Disulfide

Journal of the American Chemical Society, 2002
Dicubyl disulfide (1) has been prepared in six steps from commercially available dimethyl-1,4-cubanedicarboxylate in 47% overall yield. In the final step, the previously unknown cubanethiol 2 was oxidized to disulfide 1. X-ray crystallography for 1 reveals the shortest tetragonal C-S bond on record (1.771 A).
Ronny, Priefer, Yoon Joo, Lee, Fabiola, Barrios, Jordan H, Wosnick, Anne-Marie, Lebuis, Patrick G, Farrell, David N, Harpp, Aiming, Sun, Shaoxiong, Wu, James P, Snyder   +9 more
openaire   +2 more sources

Thiol–Disulfide Exchange in Signaling: Disulfide Bonds As a Switch

Antioxidants & Redox Signaling, 2013
The major function of disulfide bonds is not only the stabilization of protein structures. Over the last 30 years, a change in perspective took place driven by groundbreaking experiments, which promoted disulfide bonds to central players in essential thiol-disulfide exchange reactions involved in signal transduction, thiol protection, and redox ...
Messens, Joris, Collet, Jean François
openaire   +3 more sources

Cleavage of disulfide polymers. III. By disulfides

Journal of Applied Polymer Science, 1964
AbstractA study was made of the cleavage of polymeric disulfide by organic disulfides of different structures in the presence and absence of sodium disulfide. While aliphatic disulfides will cleave polymeric disulfides only in the presence of sodium disulfide, hydroxyethyl disulfide and aromatic disulfides will cause partial cleavage in the absence of ...
E. M. Fettes, H. Mark
openaire   +1 more source

Disulfide-disulfide interchange catalyzed by a liver supernatant enzyme

Biochimica et Biophysica Acta (BBA) - Enzymology, 1979
An enzyme widely distributed in rabbit tissues which catalyzes an interchange between N,N-di-dinitrophenyl-L-cystine and oxidized glutathione to form the mixed disulfide is described. D-Penicillamine disulfide can be substituted for oxidized glutathione and the mixed disulfide of cysteine and glutathione can serve as the sole substrate giving as one ...
G W, Rafter, G G, Harmison
openaire   +2 more sources

Disulfide luminescence. Emission characteristics of cyclic tetrapeptide disulfides

Biochemical and Biophysical Research Communications, 1981
Luminescence has been detected in cyclic tetrapeptide disulfides containing only nonaromatic residues. Excitation of the S-S- n-cr transition between 280 and 290 nm leads to.ernission in the region 300-340 nm. The position and intensity of the emission band depends on the stereochemistry of the peptide and polarity of the solvent. Quantum yields
Mathew, MK, Ravi, A, Balaram, P
openaire   +2 more sources

Disulfide Bond in Diethyl Disulfide: A Rotational Spectroscopic Study

The Journal of Physical Chemistry A, 2018
Diethyl disulfide was investigated by pulsed jet Fourier transform microwave spectroscopy. The spectroscopic study was complemented by ab initio calculations. The first two most stable conformers predicted at the MP2/6-311++G(d,p) level of theory were observed in the supersonic expansion. Two 13C and one 34S isotopologues for the most stable conformer (
Jiaqi Zhang, Xiaolong Li, Qian Gou, Gang Feng   +3 more
openaire   +2 more sources

Reaction of hemerythrin with disulfides

Biochemistry, 1985
The reactions of hemerythrin from Phascolopsis gouldii with the specific sulfhydryl reagents 5,5'-dithiobis(2-nitrobenzoate), 2,2'-dithiodipyridine, and 4,4'-dithiodipyridine were studied at 25 degrees C. Spectrophotometric measurements showed that 1 mol of disulfide reacted per protein subunit consistent with a single cysteine at residue 50.
P C, Harrington, R G, Wilkins
openaire   +2 more sources

Thermal properties of some cyclic disulfides: naphthalene disulfide and diphenylene disulfide

Thermochimica Acta, 1975
Abstract The specific heat, the melting heat and entropy, the vaporization heat of naphtalene disulfide (C10H6S2) and of diphenylene disulfide (C12H8S2) have been determined by differential scanning calorimetry (DSC). Over the temperature range examined the specific heat may be represented as follows: where T is the temperature in degrees Kelvin,
openaire   +1 more source