Donnan dialysis concentration of cupric ions.
نویسندگان
چکیده
منابع مشابه
Enhancement of Sendai Virus-mediated Cell Fusion by Cupric Ions
The effect of divalent cations on cell fusion by concentrated Sendai virus, inactivated by beta-propiolactone, was investigated using Vero and mouse L-929 cells in monolayers. With both cell lines, which are normally resistant to exogenous viral fusion, Cu(2+) in sublethal concentrations was found to promote polykaryon formation to a marked degree. The simultaneous presence of Cu(2+) and virus ...
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The interaction of Cu2+ with isonicotinic acid hydrazide (INH) and some of its derivatives has been investigated by means of electron spin resonance, nuclear magnetic resonance, and optical absorption studies. It could be shown that an interaction exists between the metal ions and the hydrazine side chain in addition to the very weak interaction with the ring nitrogen. The results obtained indi...
متن کاملReactions of glycine-containing peptides with cupric ions and with p-nitrophenyl acetate.
The reactivity of groups in proteins may be studied in terms of their rates of reaction to form stable or unstable products or in terms of equilibria with small molecules or ions (2). The equilibria between cupric ions and peptides are of particular interest because of the stability and spectral properties of the complexes formed and the biological importance of the copper proteins. It has been...
متن کاملEffects of alpha- tocopherol on the velocity of low density lipoprotein oxidation by cupric ions.
We studied the effect of different concentrations of alpha-tocopherol on in vitro cupric ions induced oxidation of low density lipoproteins (LDL). Human native LDL (50 µg protein/ml) oxidation was induced by 10 µmol/L of CuSO4. Conjugated dienes were measured spectrophotometrically for up to 440 minutes. The length of the lag phase (Tlag), maximum velocity of the reaction (Vmax) and the maximum...
متن کاملStrand scissions of DNA by patulin in the presence of reducing agents and cupric ions.
In the presence of NADPH and CuCl2, patulin induced the cleavage of ColE1 DNA and lambda phage DNA in vitro. The DNA-cleaving activity of patulin was concentration dependent. At the lowest concentration of patulin, ColE1 supercoiled DNA was relaxed and the highest concentration induced linearization of the DNA. This activity was inhibited by superoxide dismutase, catalase and radical scavengers...
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ژورنال
عنوان ژورنال: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
سال: 1987
ISSN: 0021-9592,1881-1299
DOI: 10.1252/jcej.20.34