AN IMPROVED METHOD FOR RAPID PURIFICATION OF COVALENTLY CLOSED CIRCULAR PLASMID DNA OVER A WIDE SIZE RANGE

被引：3
|
作者：
AZAD, AK [1 ]
COOTE, JG [1 ]
PARTON, R [1 ]
机构：
[1] UNIV GLASGOW,DEPT MICROBIOL,GLASGOW G12 8QQ,SCOTLAND
来源：
LETTERS IN APPLIED MICROBIOLOGY | 1992年 / 14卷 / 06期
关键词：
D O I：
10.1111/j.1472-765X.1992.tb00698.x
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
An improved method has been developed for the large-scale purification of covalently closed circular (CCC) plasmid DNA molecules of sizes ranging from 4.3 to 73 kb. This protocol uses an alkaline-lysis procedure followed by acid-phenol extraction but with several modifications to previously reported methods. The principal modification is the replacement of NaCl by MgCl2 in the extraction buffer to improve yield and to remove chromosomal and other non-CCC plasmid DNA. Plasmid DNA can be purified in less than 1 h and used successfully in restriction enzyme analysis and cloning experiments.
引用
收藏
页码：250 / 254
页数：5
相关论文
共 47 条
12345