منابع مشابه
The Inhibition of Streptococci by Lactoperoxidase, Thiocyanate and Hydrogen Peroxide THE OXIDATION OF THIOCYANATE AND THE NATURE OF THE INHIBITORY COMPOUND By J. D. ORAM AND B. REITER
1. The products of the lactoperoxidase-catalysed oxidation of thiocyanate by hydrogen peroxide were sulphate, carbon dioxide and ammonia. Cyanate, sulphite and a compound showing increased extinction at 235m,u (the '235 compound') were intermediate oxidation products. 2. Two of the intermediates acted as electron acceptors in the oxidation of NADH2. Thus NADH2 was oxidized by sulphite in the pr...
متن کاملThe inhibition of streptococci by lactoperoxidase, thiocyanate and hydrogen peroxide. The oxidation of thiocyanate and the nature of the inhibitory compound.
1. The products of the lactoperoxidase-catalysed oxidation of thiocyanate by hydrogen peroxide were sulphate, carbon dioxide and ammonia. Cyanate, sulphite and a compound showing increased extinction at 235mmu (the ;235 compound') were intermediate oxidation products. 2. Two of the intermediates acted as electron acceptors in the oxidation of NADH(2). Thus NADH(2) was oxidized by sulphite in th...
متن کاملHigh spin and low spin forms of Co(II) carbonic anhydrase. Temperature-dependent changes in spin state and coordination geometry.
Electron spin resonance (ESR) and absorption spectral studies are described which demonstrate two types of cyanide complex of Co(I1) human carbonic anhydrase B. High spin (S = 3/2) Co(I1) is present at the active site of the cobalt enzyme in the presence of both 1 and 2 eq of CN-’ at room temperature. At liquid nitrogen temperature the 1: 1 complex remains high spin, while the enzyme in the pre...
متن کاملGreat Britain Electron - Paramagnetic - Resonance Studies on Cobalt ( ll ) Carbonic Anhydrase LOW - SPIN CYANIDE COMPLEXES By STEPHEN
The low-spin cyanide complexes of three Co(ll) carbonic anhydrases were investigated by electron paramagnetic resonance (e.p.r.) at 9 and 35GHz. Well-defined and closely axial spectra were obtained only in the absence of oxygen. Several mole equivalents of cyanidewererequired for complete formation ofthecomplexes in frozen solution, although large excesses caused abstraction of the cobalt. Expe...
متن کاملDesign and Synthesis of Some Enaminonitrile Derivatives of Antipyrine as Potential Novel Anti-Inflammatory and Analgesic Agents
The starting (1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)carbon-hydrazonoyl dicyanide (2) was used as a key intermediate for the syntheses of novel acyclic enaminonitriles 3-10. The newly synthesized compounds were characterized by elemental analyses and spectral data (IR, 1H NMR, 13C NMR and mass spectra). The anti-inflammatory activity data indicated that many of tested compounds...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1908
ISSN: 0368-1645
DOI: 10.1039/ct9089302175