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BL21(DE3) Electrocompetent Cells

产品编号:4083272
规格:for protein expression
包装规格:4 X 25 μL,40 X 25 μL
产品类别:进口试剂
品牌:Sigma-Aldrich
优惠价:立即咨询
产品价格
产品编号包装单位单价(元)国内现货国外库存询价单
40832724 X 25 μL1105
408327240 X 25 μL8200
基本信息
NACRES
NA.85
General description【一般描述】
The BL21(DE3) Electrocompetent Cells are the first to offer high efficiency cloning and high level protein expression in the same cell.
Cloning efficiencies are increased 25-1,000 fold relative to other preparations of BL21 cells, which is essential for construction of complex expression libraries.

Genotype

F – ompT hsdSB (rB- mB-) gal dcm (DE3)
Features and Benefits【特点和优势】
The unprecedented transformation efficiency of the BL21(DE3) Electrocompetent Cells (> 5 × 109 cfu/μg) eliminates the need for plasmid transfer from the cloning strain to the expression strain, saving days of work in a typical cloning and expression experiment
Components【组分】
  • BL21(DE3) electrocompetent cells
  • pUC 19 transformation control DNA
  • recovery medium for expression


产品性质
grade【等级】
for molecular biology
cell transformation【细胞转化】
competent cell type: electrocompetent
transformation efficiency: ≥5 × 109 cfu/μg
shipped in【运输】
dry ice
storage temp.【储存温度】
−70℃
安全信息
Storage Class Code【储存分类代码】
10 - Combustible liquids
WGK
WGK 3
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