A nucleic acid adsorbent in which a polymer having a constitutional unit represented by the following formula (I) is immobilized on a water-insoluble carrier is used as a nucleic acid adsorbent capable of selectively and efficiently adsorbing nucleic acids from complex mixtures, such as cell extract,
wherein R
1
represents hydrogen, fluoride, or methyl; R
2
and R
3
each independently represent alkyl of 1 to 6 carbon atoms; A is —NH— or —O—; and B represents alkylene of 2 to 18 carbon atoms. Nucleic acids are recovered from cell extract by allowing them to be adsorbed to the nucleic acid adsorbent by mixing this nucleic acid adsorbent with cell extract, removing the nucleic acids from the cell extract by separating the adsorbent therefrom, and dissociating the nucleic acids from the nucleic acid adsorbent by treating the separated nucleic acid adsorbent with alkali.
一种核酸吸附剂将具有下式 (I) 所代表的构型单元的聚合物固定在不溶于
水的载体上,用作核酸吸附剂,能够选择性地、高效地吸附复杂混合物(如细胞
提取物)中的核酸、
其中 R
1
代表氢、
氟或甲基;R
2
和 R
3
各自独立地代表 1 至 6 个碳原子的烷基;A 是-NH- 或-O-;B 代表 2 至 18 个碳原子的亚烷基。从细胞
提取物中回收核酸的方法是:将核酸吸附剂与细胞
提取物混合,使核酸吸附在核酸吸附剂上;将吸附剂与细胞
提取物分离,从细胞
提取物中去除核酸;用碱处理分离后的核酸吸附剂,使核酸从核酸吸附剂中解离。