“ethidium”的英文意思_释义_用法

单词

ethidium

释义

ethidium, n. Biochem.|ɛˈθɪdɪəm|
[f. ethyl n. + -ide + -ium.]
A derivative of phenanthridine, C₂₁H₂₀BrN₃ (more fully ethidium bromide), used as a trypanocide, as a purple stain for DNA, and to destroy the superhelical structure of DNA; also occas., the cation of this compound.
1959Brit. Vet. Codex Suppl. 119 Ethidium Bromide, homidium bromide.1967New Scientist 11 May 352/2 Drs Crawford and Waring exposed DNA from the polyoma virus to limiting concentrations of ethidium bromide, a drug which is able to insert itself between adjacent bases in DNA.1974Ciba Symposium XX. 292 Ethidium may also interact with lysosome membranes and prevent the reorganization of these structures which is associated with normal cell division.1983J. R. S. Fincham Genetics x. 251 A molecule with intercalated ethidium has its base-pairs forced apart.1991Lancet 5 Jan. 6/2 In all PCR-positive cases, a 240 bp amplification product was seen on ethidium bromide stained agarose gels.

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