丁香实验_LOGO
登录
提问
我要登录
|免费注册
点赞
收藏
wx-share
分享

Plasmid Preparation on Sephacryl S1000

互联网

573
Production of pure plasmid DNA is a prerequisite for most laboratories engaged in recombinant DNA research. There are a number of procedures available for plasmid purification, all of which have common features; namely, (1 ) growth of plasmid-containing bacteria, (2 ) lysis of bacteria, (3 ) low-speed centrifugation to remove the majority of bacterial DNA and protein, (4) an ultracentrifugation step in cesium chloride and ethidium bromide to separate plasmid DNA from RNA and chromosomal DNA, and (5) recovery of plasmid DNA band (extraction of ethidium bromide and cesium chloride). Steps (4) and (5) of this procedure are expensive, time-consuming, and require expensive machinery [ultracentrifuge, rotor(s)]. In addition, incomplete extraction of ethidium bromide can result in plasmid DNA that is not manipulable by many enzymes commonly used in DNA research.
提问
扫一扫
丁香实验小程序二维码
实验小助手
丁香实验公众号二维码
扫码领资料
反馈
TOP
打开小程序