What's the difference between sulphine and sylphine?
Sulphine
Definition:
(n.) Any one of a series of basic compounds which consist essentially of sulphur united with hydrocarbon radicals. In general they are oily or crystalline deliquescent substances having a peculiar odor; as, trimethyl sulphine, (CH3)3S.OH. Cf. Sulphonium.
Example Sentences:
(1) In contrast, in the majority of neurones, responses to glutamate, aspartate, cysteate and cysteine sulphinate demonstrated a conventional voltage relation, were associated with a decrease in membrane resistance, evoked no slow spikes, were insensitive to extracellular Mg2+ concentrations between 1 and near 0 mM and could be evoked with small currents of amino acids when the electrophoretic pipette was greater than 100 micron from the cell soma.
(2) The binding constants, quentum yield and temperature dependence of the fluorescence of ionic (1-anilinonaphtalin-8-sulphinate) and neutral (N-phenyl-1-naphtylamine) probes were studied on the molecules of bovine serum albumine with the change of pH and solution ionic strength.
(3) Endogenous amino acids known to activate NMDA receptors (L-glutamate, L-aspartate, L-cysteine sulphinate and quinolinate) as well as exogenous NMDA agonists such as ibotenate and trans-2,3-piperidine dicarboxylate (trans-PDA) all produced similar responses.
(4) The progress of the reaction is described and the activities of related sulphinic acids were determined.
(5) An oxidative pathway for cysteine catabolism in H. diminuta was shown by the presence of cysteine dioxygenase and cysteine sulphinate transaminase.
(6) The recombinant enzyme and the authentic AspATSs are indistinguishable: in fact, they have the same molecular weight, estimated by means of SDS-PAGE and gel filtration, the same Km values for 2-oxo-glutarate and cysteine sulphinate and the same UV-visible spectra.
(7) Depletion of GSH by NDPO2 is accompanied by the formation of its disulphide, sulphinate, sulphonate, sulphoxide and other products.
(8) The effects of the sulphur containing amino acids, homocysteic acid, homocysteine sulphinic acid, cysteic acid and cysteine sulphinic acid on the release of [3H]-acetylcholine ([3H]-ACh) from the cholinergic amacrine cells of the rabbit retina were examined.
(9) The transport kinetics of the excitatory sulphur-containing amino acid (SAA) transmitter candidates, L-cysteine sulphinate (L-CSA), L-cysteate (L-CA), L-homocysteine sulphinate (L-HCSA), and L-homocysteate (L-HCA), together with their plasma membrane carrier specificity, was studied in cerebrocortical synaptosome fractions by a sensitive high performance liquid chromatographic assay.
(10) Methanesulphenic acid is proposed to be the group displaced by GSH from methyl sulphoxides forming methyl mercaptan, methyl glutathionyl disulphide and methane-sulphinic acid in vitro.
(11) Methane sulphinic acid was quantified by use of a simple colorimetric assay and used to determine the amounts of HO.
(12) Except for homocysteine sulphinic acid these actions occurred at concentrations that did not affect the erg b-wave amplitude, indicating a site of action at the inner retina.
(13) These results suggest that aspartate, glycine, homocysteic acid, and cysteine sulphinic acid play a role in synaptic transmission in the Schaffer collateral-commissural fibres, and that cysteine sulphinic acid and homocysteic acid may be released specifically by high-frequency stimulation.
(14) In general, inhibition: (i) was markedly stereospecific in favor of the L-enantiomers (except for cysteine sulphinate) and (ii) was found to decrease with increasing chain length.
(15) Also by automated ion-exchange chromatography seleninic derivatives are well separated from the analogous sulphinic compounds, while selenonic compounds are eluted together with the corresponding sulphonic compounds.
(16) Of the four extraction media examined, TCA in combination with ether extraction was shown to be the most potent oxidative treatment and resulted in 23% oxidation of original cysteine or homocysteine to sulphinic and sulphonic acids.
(17) Four minutes of continuous 50 Hz stimulation produced a tetrodotoxin-sensitive release of aspartate and glycine in the second minute of stimulation, as well as a tetrodotoxin-sensitive release of cysteine sulphinic acid, during stimulation and of homocysteic acid, following stimulation.
(18) The neuroactive sulphur-containing amino acids L-cysteate (CA), L-cysteine sulphinate (CSA), L-homocysteine sulphinate (HSA), S-sulpho-L-cysteine (SC) and L-homocysteate (HCA) evoked the release of previously accumulated D-[3H]aspartate from rat brain cerebrocortical and cerebellar synaptosome fractions in a manner that was wholly Ca2+-independent.
(19) Metabolically formed nitrosoarenes react with sulphydryl groups of haemoglobin and, after intramolecular rearrangement, yield sulphinic acid amides.
(20) 3) In contrast the cysteic and cysteine sulphinate decarboxylase activities decrease with age in kidney, lung and spleen.