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Merck
CN

70235-M

BL21(DE3) Singles感受态细胞- Novagen

Escherichia coli, rod shaped

别名:

BL21 strain

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关于此项目

UNSPSC Code:
41106202
NACRES:
NA.81
Biological source:
Escherichia coli
Growth mode:
adherent or suspension
Morphology:
rod shaped
Manufacturer/tradename:
Novagen®
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产品名称

BL21(DE3) Singles感受态细胞- Novagen, BL21(DE3) is a chemically competent E. coli cell suitable for transformation and high level protein expression using a T7 RNA polymerase-IPTG induction system.

biological source

Escherichia coli

Quality Segment

manufacturer/tradename

Novagen®

storage condition

OK to freeze, avoid repeated freeze/thaw cycles

growth mode

adherent or suspension

morphology

rod shaped

technique(s)

microbiological culture: suitable

cell transformation

transformation efficiency: >2×107 cfu/μg

shipped in

dry ice

storage temp.

−70°C

General description

基因型:FompT hsdSB (rB mB) gal dcm (DE3)

本产品含有转基因生物(GMO)。在欧盟范围内,转基因物种分别受欧洲议会和理事会的2001/18 /EC和2009/41/EC指令及其成员国中国家所实施规范的约束。该法规规定我们有义务索取您以及处理转基因生物的机构的相关信息。请点击这里获得最终用户声明(EUD)表格。
BL21(DE3)是一种化学感受态大肠埃希菌细胞,适用于使用T7 RNA聚合酶IPTG诱导系统进行转化和高水平蛋白质表达。
将DNA质粒转化为大肠埃希菌的常用方法是使用化学感受态细胞。尽管可以在实验室中制备感受态细胞,但使用Novagen制备的感受态细胞可获得更高的效率、重现性和便利性。Novagen® Singles感受态细胞是为质粒转化的方便性和可靠性而设计的。采用优化方法制备化学感受态细胞。细胞容积为50 µl,无需等分、冷冻/解冻或浪费部分使用的小瓶,节省时间和金钱,并确保可靠的细胞性能。使用时,只需解冻,添加DNA,在冰上孵育5分钟,热冲击30秒,在冰上放置2分钟,然后添加SOC培养基。如(DE3)所示,
T7表达菌株是噬菌体DE3的溶酶原。这些宿主携带由lacUV5启动子控制的T7 RNA聚合酶基因的无染色体拷贝。此类菌株适用于利用IPTG作为诱导剂,从在适当的T7表达载体中克隆的靶基因生产蛋白质。自1990年首次引入
BL21以来,它一直是蛋白质表达的金标准。由于缺乏lon和ompT蛋白酶,BL21及其衍生物是许多应用的理想选择。

Biochem/physiol Actions

基因型:FompT hsdSB (rB mB) gal dcm (DE3)

Other Notes

•11 rxn22 rxnBL21(DE3)Singles感受态细胞•2或 4 × 2 mlSOC培养基•10 µl测试质粒

Legal Information

NOVAGEN is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

This product is sold for internal research use only. Any commercial use of this product, its components, and/or any derivatives thereof (including but not limited to proteins produced using the product or its components) (together and hereinafter the “EMD Product”) requires signature of a written commercial use agreement with EMD Millipore Corporation or its successor-in-interest. Commercial use shall include but not be limited to: (1) use of the EMD Product to manufacture products for sale to third parties; (2) use of the EMD Product to provide services, information, or data to third parties in exchange for consideration; (3) use of the EMD Product for therapeutic, diagnostic or prophylactic purposes (including as part of a device, chip, assay or other product); or (4) resale of the EMD Product, whether or not such EMD Product is resold for research use. Nothing contained herein shall be deemed to represent or warrant that additional third party rights are not required for use of the EMD Product. Please direct any questions on these use restrictions to: licensing@milliporesigma.com.
毒性:多个毒性值,请参阅MSDS(O)




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