Patent ID: 7691990

Claim:
A structure designed for adsorption of a DNA intercalator employed by a procedure in which a DNA intercalator contained in liquid or gas is selectively adsorbed onto DNA by contacting the DNA with the DNA intercalator, comprising: an adsorbing layer having, as a unit component, a DNA complex comprising a DNA-binding protein in the form of a nuclear protein, DNA including double strand DNA and a carrier, as an adsorbing layer on which the DNA intercalator is selectively adsorbed, wherein the DNA complex contains 0.5 to 10 parts by mass of the DNA-binding protein component per 100 parts by mass of the DNA including double strand DNA, and wherein intercalation ability by mass (IcM) defined in terms of the maximum adsorption mass (mg) of ethidium bromide (EB) per unit mass (1 g) of the DNA complex is 0.5 or more [mg EB/g DNA complex)].