- 商品介绍
- 规格参数
- 包装参数
QIAGEN Plasmid Kits
纯化至多10 mg转染级质粒或柯斯质粒DNA
Features
纯化得到相当于连续2次CsCl梯度离心得到的DNA纯度
高产量质粒DNA
经济的制备方法
使用LyseBlue,获得最佳的裂解效果和最大的DNA产量
QIAGEN Plasmid Kits应用重力流阴离子交换柱纯化转染级质粒DNA。该试剂盒可纯化获得至多10 mg的质粒DNA。离心获得澄清的裂解产物和异丙醇沉淀。
QIAGEN Plasmid Kit
QIAGEN Plasmid Kit利用重力流QIAGEN阴离子交换柱技术高效纯化质粒DNA。产量可达10 mg(Giga)、2.5 mg(Mega)、500 µg(Maxi)、或100 µg(Midi)高拷贝质粒DNA(培养体积取决于质粒拷贝数、插入片段大小、宿主菌株和培养基。)QIAGEN Plasmid Kits纯化的质粒DNA适合多种应用,如:转染(参见"Transfection efficiency versus plasmid purification method")、克隆和体外转录。
QIAGEN-tips内独特的阴离子交换树脂专为纯化核酸设计。它独特的分离特性,使纯化的DNA的纯度相当于连续2次CsCl梯度离心得到的DNA纯度。预装的QIAGEN-tips利用重力流原理工作,缩短了纯化质粒的手动操作时间。整套QIAGEN质粒纯化体系避免苯酚、氯仿、溴化乙锭和CsCl等有毒物质,减小对使用者和环境的危害。
使用QIAGEN Plasmid Kits,细菌裂解物通过离心澄清。澄清后的裂解物上样到阴离子交换柱,质粒DNA在适当的低盐条件和pH条件下与树脂进行选择性结合。RNA、蛋白质、代谢产物和和其它低分子量杂质用中盐洗涤液去除,用高盐缓冲液洗脱纯质粒DNA(参见"QIAGEN Plasmid Kit procedures")。得到的DNA用异丙醇沉淀浓缩和脱盐后,离心收集。
Features | Specifications |
Culture volume/starting material | 2.5–5 liters culture volume |
Technology | Anion-exchange technology |
Yield | <10 mg |
Processing | Manual (centrifugation) |
Samples per run (throughput) | 1 sample per run |
Time per run or prep per run | 320 min |
Plasmid type | High-copy, low-copy, cosmid DNA |
Applications | Transfection, cloning, sequencing, capillary sequencing etc. |
Different pRSVcat DNA preparations using the methods indicated were introduced into the indicated cell lines by liposome-mediated transfection, and the efficiencies determined by measuring CAT expression levels after 40 h. Each bar represents the mean of 4 independent transfections (2 transfections with each of 2 independent plasmid preparations). The highest transfection efficiency was achieved with QIAGEN Plasmid Kits.
Neutralized bacterial lysates are cleared by centrifugation. The cleared lysate is then loaded onto the anion-exchange tip where plasmid DNA selectively binds under appropriate low-salt and pH conditions. RNA, proteins, metabolites, and other low-molecular-weight impurities are removed by a medium-salt wash, and ultrapure plasmid DNA is eluted in high-salt buffer. The DNA is concentrated and desalted by isopropanol precipitation and collected by centrifugation.
QIAGEN Plasmid Kits纯化质粒DNA适合多种应用,如:
转染
克隆
PCR
体外转录
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