Results 161 to 170 of about 20,641 (189)
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Chemischer Informationsdienst, 1979
AbstractDie Titelverbindungen werden aus den Oxidsulfiden Ln2O2S und S durch chemischen Transport im Temp.‐Gradienten 780 → 730°C mit KI als Transportmittel dargestellt und röntgenographisch untersucht.
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AbstractDie Titelverbindungen werden aus den Oxidsulfiden Ln2O2S und S durch chemischen Transport im Temp.‐Gradienten 780 → 730°C mit KI als Transportmittel dargestellt und röntgenographisch untersucht.
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The chemistry of disulfides [PDF]
Russian Chemical Reviews, 1994 The results of studies in the chemistry of disulfides during recent years are surveyed and treated systematically. The structures, methods of synthesis, and the physicochemical and chemical properties of disulfides are examined. The bibliography includes 151 references.
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Journal of the American Chemical Society, 1984
Etude des structures electroniques a l'etat fondamental et a l'etat excite par des calculs ab initio SCF et CI, en fonction de l'angle diedre S-S: energies, barrieres cis et trans a la rotation rigide empechee; potentiels d'ionisation, forces de rotation et forces d ...
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Etude des structures electroniques a l'etat fondamental et a l'etat excite par des calculs ab initio SCF et CI, en fonction de l'angle diedre S-S: energies, barrieres cis et trans a la rotation rigide empechee; potentiels d'ionisation, forces de rotation et forces d ...
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Carbon disulfide nephropathy [PDF]
American Journal of Kidney Diseases, 2000 A 45-year-old nondiabetic man presented with features resembling diabetic triopathy. He worked in a rayon manufacturing plant and was exposed to toxic levels of carbon disulfide (CS(2)). Clinical abnormalities included peripheral and central nervous system abnormalities as well as retinopathy, dyslipidemia, cardiovascular disease, and nephrotic ...
Philip J. Klemmer, Alexis A. Harris
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Deformation density studies of tetramethylthiuram disulfide and tetraethylthiuram disulfide
Acta Crystallographica Section B Structural Science, 1989C 6 H 12 N 2 S 4 cristallise dans C 2 /c avec affinement jusqu'a 0,031. C 10 H 20 N 2 S 4 cristallise dans P2 1 /c avec affinement jusqu'a 0,029. Les deux composes possedent un pont constitue de deux atomes de soufre, chacun relie a deux thiurame identiques.
Yu Wang, J.H. Liao
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Reaction of hemerythrin with disulfides
Biochemistry, 1985The 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.
Ralph G. Wilkins, Patricia C. Harrington
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Acta Crystallographica Section C Crystal Structure Communications, 1988
S-Benzylthio thioacetate, C9H10OS2, Mr = 198.31, monoclinic, P2(1), a = 5.7112(5), b = 8.1912(5), c = 10.6486(8) A, beta = 92.230(8) degrees, V = 497.8(1) A3, Z = 2, Dm = 1.32(1), Dx = 1.323 Mg m-3, lambda(Mo K alpha) = 0.71073 A, mu = 0.47 mm-1, F(000) = 208, T = 299(1) K, RF = 0.024 for 812 reflections. In this molecule, the S-S [2.024(1) A] and S-C [
Elizabeth S. John +2 more
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S-Benzylthio thioacetate, C9H10OS2, Mr = 198.31, monoclinic, P2(1), a = 5.7112(5), b = 8.1912(5), c = 10.6486(8) A, beta = 92.230(8) degrees, V = 497.8(1) A3, Z = 2, Dm = 1.32(1), Dx = 1.323 Mg m-3, lambda(Mo K alpha) = 0.71073 A, mu = 0.47 mm-1, F(000) = 208, T = 299(1) K, RF = 0.024 for 812 reflections. In this molecule, the S-S [2.024(1) A] and S-C [
Elizabeth S. John +2 more
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Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2004
During the maturation of extracellular proteins, disulfide bonds that chemically cross-link specific cysteines are often added to stabilize a protein or to join it covalently to other proteins. Disulfide formation, which requires a change in the covalent structure of the protein, occurs as the protein folds into its three-dimensional structure.
Hiram F. Gilbert, Bonney Wilkinson
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During the maturation of extracellular proteins, disulfide bonds that chemically cross-link specific cysteines are often added to stabilize a protein or to join it covalently to other proteins. Disulfide formation, which requires a change in the covalent structure of the protein, occurs as the protein folds into its three-dimensional structure.
Hiram F. Gilbert, Bonney Wilkinson
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Formation of disulfides with diamide
1987Publisher Summary This chapter discusses the formation of disulfides with diamide. Several diazenecarbonyl derivatives were found to be active for the conversion of thiols to disulfides. The most convenient and chemically simple agent was diazenedicarboxylic acid bis(N,N-di-methylamide), now known by the trivial name, “diamide.” Diamide is a yellow ...
Nechama S. Kosower, Edward M. Kosower
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Disulfide Bridges in Defensins
Current Topics in Medicinal Chemistry, 2015Defensins are small cationic cysteine rich peptides, which usually contain 18-45 amino acids and possess amphiphilic properties. The term "defensin" was coined as the sequences of rabbit and human leukin/phagocytin molecules were first reported in 1985.
Zigang Li +4 more
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