5-alpha F’ Iq E. coli 感受态细胞(高效级) |NEB酶试剂 New England Biolabs

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产品信息

E. coli 化学感受态细胞适用于多种应用中的高效转化。

重点

  • DH5α™ 衍生菌株
  • 无动物来源
  • 可高效转化 PCR、cDNA 或其它来源的非甲基化 DNA(hsdR
  • 通过 laclq 严格控制表达,从而能够克隆潜在的毒性基因
  • 去除了非特异性核酸内切酶 I(endA1)的活性,以获得最高质量的质粒制备
  • 抗 T1 噬菌体(fhuA2)
  • 适用于蓝白斑筛选,通过 β-半乳糖苷酶基因的 α-互补实现
  • F’ 让细胞能够被噬菌体 M13 感染产生单链 DNA
  • 减少克隆 DNA 的重组(recA1
  • K12 菌株

基因型

proA+B+ lacIq ∆(lacZ)M15 zzf::Tn10 (TetR) / fhuA2∆(argF-lacZ)U169 phoA glnV44 Φ80Δ(lacZ)M15 gyrA96 recA1 relA1 endA1 thi-1 hsdR17

产品类别:
Cloning Competent Cell Strains Products

应用:
High-throughput cloning and automation solutions,
Transformation

  • 产品组分信息

    本产品提供以下试剂或组分:

    NEB # 名称 组分货号 储存温度 数量 浓度
    • C2992H     -80    
        SOC Outgrowth Medium B9020SVIAL 4 1 x 25 ml Not Applicable
        pUC19 Vector N3041AVIAL -20 1 x 0.025 ml 50 pg/µl
        NEB® 5-alpha F'Iq Competent E. coli (High Efficiency) C2992HVIAL -80 20 x 0.05 ml Not Applicable
    • C2992I     -80    
        SOC Outgrowth Medium B9020SVIAL 4 1 x 25 ml Not Applicable
        pUC19 Vector N3041AVIAL -20 1 x 0.025 ml 50 pg/µl
        NEB® 5-alpha F'Iq Competent E. coli (High Efficiency) C2992IVIAL -80 6 x 0.2 ml Not Applicable

  • 特性和用法

    Antibiotic for Plasmid Selection

    用于质粒筛选的抗生素 使用浓度
    Ampicillin 100 µg/ml
    Carbenicillin 100 µg/ml
    Chloramphenicol 33 µg/ml
    Kanamycin 30 µg/ml
    Streptomycin 25 µg/ml

    货运单

    • Ships on dry ice

    抗生素耐药性

    • 四环素

  • 优势和特性

    Features

    • 克隆毒性基因
    • 含 F´ 因子的菌株,具有极高的转化效率

    应用特性

    DNA 对转化效率和菌落产量的影响:

    5-alpha F’ Iq E. coli 感受态细胞(高效级) |

    在转化反应中使用的最佳 DNA 量比通常认为的要低。使用纯化后的超螺旋 pUC19,在 100 pg-1 ng 范围内转化效率最高。但是,随着 DNA 用量增加到 100 ng,单次转化反应得到菌落总数会随之增加。
    热激时间对 NEB 5-alpha F´Iq E.coli 感受态细胞转化效率的影响:

    5-alpha F’ Iq E. coli 感受态细胞(高效级) |

    按照所提供的高效级转化操作流程,用 100 pg pUC19 对照 DNA 转化 50 μl 感受态细胞,热激时间的变化范围为 0 至 80 秒。
    DNA 温育时间对 NEB 5-alpha F´Iq E. coli 感受态细胞转化效率的影响:

    5-alpha F’ Iq E. coli 感受态细胞(高效级) |

    按照所提供的高效级转化操作流程,用 100 pg pUC19 对照 DNA 转化 50 μl 感受态细胞,DNA 温育时间的变化范围为 0 至 40 分钟。
    细胞复苏培养基对转化效率的影响:

    5-alpha F’ Iq E. coli 感受态细胞(高效级) |

    按照所提供的高效级转化方案,用 100 pg pUC19 对照 DNA 转化 50 μl NEB 5-alpha F´Iq E.coli 感受态细胞,仅使用的复苏培养基不同。NEB SOC Outgrowth 培养基的转化效率最高。

  • 相关产品

    相关产品

    • NEB® 5-alpha E. coli 感受态细胞(高效级)
    • NEB® 5-alpha E. coli 感受态细胞(亚克隆效级)
    • t1010-monarch-plasmid-miniprep-kit
    • Monarch® DNA 胶回收试剂盒
    • Monarch® PCR & DNA 纯化试剂盒(5 μg)

    单独销售的组分

    • SOC Outgrowth 培养基

  • 注意事项

    1. 注意:本产品含危险物质 DMSO。处理前请先查看 MSDS。
    2. 贮存和处理:感受态细胞应在 -80℃ 条件下贮存。-20℃ 条件下贮存会显著降低转化效率。当细胞温度高于 -80℃ 时,即使不融化,细胞也会失去效率。

操作说明、说明书 & 用法

  • 操作说明

    1. 5 Minute Transformation Protocol (C2992)
    2. High Efficiency Transformation Protocol (C2992)

  • 使用指南

    • Additional E. coli Strain Genotypes
    • Chemical Transformation Tips
    • Competent E. coli Genome Sequences Tool
    • Genetic Markers
    • McrA, McrBC and EcoKI Strain Phenotypes
    • Restriction of Foreign DNA by E. coli K-12

  • 应用实例

    • Enhancing Transformation Efficiency

工具 & 资源

  • 选择指南

    • Characteristics of Select E.coli Strains
    • Competent Cell Product Comparison
    • Competent Cell Selection Guide

  • Web 工具

    • Competitor Cross-Reference Tool
    • NEBcloner®

FAQs & 问题解决指南

  • FAQs

    1. Which competent cell strains are compatible with Gateway® Cloning?
    2. Does plasmid size affect transformation efficiency (C2992)?
    3. How long should I incubate cells on ice after DNA has been added (NEB #C2992H and NEB #C2992I)?
    4. How should I calculate the transformation efficiency (C2992)?
    5. What are the solutions/recipes (C2992)?
    6. What are the strain properties (C2992)?
    7. What is the difference between NEB #C2992H and NEB #C2992I?
    8. What is the optimal heat shock time for this strain (NEB #C2992H and NEB #C2992I)?
    9. Which strain of Competent E.coli should I use for general cloning?
    10. Can I store competent cells at -20°C instead of -80°C?
    11. Which kind of transformation tubes should be used?
    12. What volume of DNA can be added into competent cells?
    13. What is the shelf life for this strain (NEB #C2992H and NEB #C2992I)?
    14. Are NEB’s competent cells compatible with the “Mix & Go” protocol?
    15. How should I store SOC Outgrowth Medium? The SOC I received with my competent cells recommends storage at either room temperature or 4°C, however, when I purchase it as a stand alone product, it recommends storing it at 4°C. Which is better?
    16. How should fragments be prepared for assembly using NEBuilder HiFi?

Express® Iq Competent E. coli (High Efficiency) |NEB酶试剂 New England Biolabs

上海金畔生物科技有限公司代理New England Biolabs(NEB)酶试剂全线产品,欢迎访问官网了解更多产品信息和订购。

产品信息

重点

  • Enhanced BL21 derivative ideal for Plac, Ptac, Ptrc expression vectors
  • LacIq reduces basal expression
  • Ideal for pUC19 expression
  • Deficient in proteases Lon and OmpT
  • Resistant to phage T1 (fhuA2)
  • Does not restrict methylated DNA (McrA, McrBC, EcoBrm, Mrr)
  • Better control of IPTG induced expression of non T7 plasmids
  • Free of animal products

基因型

MiniF lacIq (CamR) / fhuA2 [lon] ompT gal sulA11 R(mcr-73::miniTn10–TetS)2 [dcm] R(zgb-210::Tn10–TetS) endA1 Δ(mcrC-mrr)114::IS10

产品类别:
Non-T7 Expression,
E. coli Protein Expression Strains Products,
Protein Expression Products,

E. coli Expression Strains Products

应用:
Non-T7 Expression,
Protein Expression in E. Coli,
Protein Expression

  • 产品组分信息

    本产品提供以下试剂或组分:

    NEB # 名称 组分货号 储存温度 数量 浓度
    • C3037I     -80    
        NEBExpress® Iq Competent E. coli (High Efficiency) C3037IVIAL -80 6 x 0.2 ml Not Applicable

  • 特性和用法

    Antibiotic for Plasmid Selection

    用于质粒筛选的抗生素 使用浓度
    Ampicillin 100 µg/ml
    Carbenicillin 100 µg/ml
    Kanamycin 30 µg/ml
    Streptomycin 25 µg/ml
    Tetracycline 15 µg/ml

    货运单

    • Ships on dry ice

    抗生素耐药性

    • nit
    • cam

  • 优势和特性

    Features

    • Control of IPTG induced expression from Plac, Ptac,Ptrc and PT5-lacO
    • Protease deficient

    应用特性

    Chemically competent E. coli cells suitable for high efficiency transformation and protein expression, featuring control of IPTG induced expression with non-T7 plasmids.

    DNA Effects on Transformation Efficiency and Colony Output: Express® Iq Competent E. coli (High Efficiency) |
    The optimal amount of DNA to use in a transformation reaction is lower than commonly recognized. Using clean, supercoiled pUC19, the efficiency of transformation is highest in the 100 pg-1 ng range. However, the total colonies which can be obtained from a single transformation reaction increase up to about 100 ng.
    Effect of heat shock time on NEB Express Iq competent E. coli transformation efficiency: Express® Iq Competent E. coli (High Efficiency) |
    50 μl of competent cells were transformed with 100 pg of pUC19 control DNA following the provided High Efficiency Transformation Protocol except heat shock time varied from 0 to 80 seconds.
    Effect of DNA incubation time on NEB Express Iq competent E. coli transformation efficiency: Express® Iq Competent E. coli (High Efficiency) |
    50 μl of competent cells were transformed with 100 pg of pUC19 control DNA following the provided High Efficiency Transformation Protocol except DNA incubation time varied from 0 to 40 minutes.

  • 相关产品

    相关产品

    • c2523-neb-express-competent-e-coli-high-efficiency

    单独销售的组分

    • SOC Outgrowth 培养基

  • 注意事项

    1. 注意:本产品含有害物质 DMSO。处理前请先查看 MSDS。
    2. 贮存和处理:感受态细胞应在 -80℃ 下贮存。在 -20℃ 贮存会导致转化效率显著降低。当细胞温度高于 -80℃ 时,即使不融化,细胞也会失去效率。

操作说明、说明书 & 用法

  • 操作说明

    1. High Efficiency Transformation Protocol (C3037)
    2. 5 Minute Transformation Protocol (C3037)
    3. Protocol for Expression Using NEB Express Iq (C3037)
    4. High Efficiency Transformation Protocol (NEB #C2523 and #C3037)

  • 使用指南

    • Additional E. coli Strain Genotypes
    • Competent E. coli Genome Sequences Tool
    • Genetic Markers
    • McrA, McrBC and EcoKI Strain Phenotypes

  • 应用实例

    • AppNote_Enhancing_Transformation_Efficiency
    • Enhancing Transformation Efficiency

工具 & 资源

  • 选择指南

    • Characteristics of Select E.coli Strains
    • Competent Cell Selection Guide

FAQs & 问题解决指南

  • FAQs

    1. Does New England Biolabs offer strains of Competent E.coli suited for protein expression?
    2. How long should I incubate cells on ice after DNA has been added (NEB #C3037H and NEB #C3037I)?
    3. What are the solutions/recipes (C3037)?
    4. What are the strain properties (C3037)?
    5. What is the difference between NEB #C3037H and NEB #C3037I?
    6. What is the optimal heat shock time for this strain (NEB #C3037H and NEB #C3037I)?
    7. Why are there no colonies or no growth in liquid culture (C3037)?
    8. Why is induced protein insoluble (C3037)?
    9. Why is there no protein visible on gel or no activity (C3037)?
    10. Can I store competent cells at -20°C instead of -80°C?
    11. What is the shelf life for this strain (NEB #C3037H and NEB #C3037I)?
    12. Which kind of transformation tubes should be used?
    13. What volume of DNA can be added into competent cells?
    14. Are NEB’s competent cells compatible with the “Mix & Go” protocol?
    15. Is antibiotic selection necessary to maintain the MiniF-lacIq plasmid?

T7 表达 lysY/Iq E. coli 感受态细胞(高效级) |NEB酶试剂 New England Biolabs

上海金畔生物科技有限公司代理New England Biolabs(NEB)酶试剂全线产品,欢迎访问官网了解更多产品信息和订购。

产品信息

大肠杆菌(E. coli)化学感受态细胞,适合高效级转化和蛋白表达。

重点

  • BL21 源增强型菌株,适合 T7 表达
  • lac 操纵子上有 T7 RNA 聚合酶,无 λ 前噬菌体
  • 通过 laclq 精确控制表达,从而允许克隆潜在的毒性基因
  • 通过溶菌酶对 T7 RNA 聚合酶进行调控,使毒性基因得以表达
  • LysY 作为特殊的 T7 溶菌酶,因缺少酰胺酶活性,从而降低细胞在诱导过程中的溶菌现象
  • 溶菌酶/lacIq 质粒的维持无需抗生素筛选
  • Lon 和 OmpT 蛋白酶缺失
  • 抗噬菌体 T1(fhuA2)
  • 不受限于 DNA 是否甲基化(McrA、McrBC、EcoBrm、Mrr
  • B 菌株
  • 无动物来源产品

基因型

MiniF lysY lacIq(CamR) / fhuA2 lacZ::T7 gene1 [lon] ompT gal sulA11 R(mcr-73::miniTn10–TetS)2 [dcm] R(zgb-210::Tn10–TetS) endA1 Δ(mcrC-mrr) 114::IS10

产品类别:
T7 Expression,
E. coli Protein Expression Strains Products,
Protein Expression Products,

E. coli Expression Strains Products

应用:
T7 Expression,
Toxic Protein Expression,
Membrane Protein Expression,

Expression of Difficult Proteins,
Peptide Ligation,
Protein Expression in E. Coli,

Protein Expression

  • 产品组分信息

    本产品提供以下试剂或组分:

    NEB # 名称 组分货号 储存温度 数量 浓度
    • C3013I     -80    
        T7 Express lysY/Iq Competent E. coli (High Efficiency) C3013IVIAL -80 6 x 0.2 ml Not Applicable

  • 特性和用法

    Antibiotic for Plasmid Selection

    用于质粒筛选的抗生素 使用浓度
    Ampicillin 100 µg/ml
    Carbenicillin 100 µg/ml
    Kanamycin 30 µg/ml
    Streptomycin 25 µg/ml
    Tetracycline 15 µg/ml

    货运单

    • Ships on dry ice

    抗生素耐药性

    • nit
    • cam

  • 优势和特性

    Features

    • T7 表达
    • 蛋白酶缺失
    • 最高水平的表达控制

    应用特性

    毒性哺乳动物克隆转化大肠杆菌(E. coli)宿主 T7 表达 lysY/Iq E. coli 感受态细胞(高效级) |
    将 T7 表达质粒和含有编码毒性哺乳动物蛋白的基因的相同质粒转化到每个宿主中。相对转化效率的比较表明,T7 表达宿主提供了转化潜在毒性克隆所需的控制水平。不能用 BL21(DE3)转化毒性克隆。
    T7 调控无毒蛋白在大肠杆菌(E. coli)宿主中的表达T7 表达 lysY/Iq E. coli 感受态细胞(高效级) |
    将含有编码大肠杆菌(E.coli)蛋白的基因的 T7 表达质粒转化到每个宿主中,培养至 0.6 OD 并诱导 3 小时。未诱导(-)和诱导(+)细胞可溶性提取物的比较显示了对 T7 表达宿主中本底表达的卓越控制,并同时保持高水平的诱导表达。
    热激时间对 T7 表达 lysY/Iq  E.coli 感受态细胞转化效率的影响T7 表达 lysY/Iq E. coli 感受态细胞(高效级) |
    将 50 μl 感受态细胞与 100 pg pUC19 对照 DNA 按照所提供的高效级转化操作流程进行转化,仅热激时间为 0 至 80 秒不等。
    DNA 孵育时间对 T7 表达 lysY/Iq E.coli 感受态细胞转化效率的影响T7 表达 lysY/Iq E. coli 感受态细胞(高效级) |
    将 50 μl 感受态细胞与 100 pg pUC19 对照 DNA 按照所提供的高效级转化操作流程进行转化,仅 DNA 孵育时间为 0 至 40 分钟不等

  • 相关产品

    相关产品

    • T7 表达 lysY E. coli 感受态细胞(高效级)
    • T7 表达 E. coli 感受态细胞(高效级)

    单独销售的组分

    • SOC Outgrowth 培养基

  • 注意事项

    1. 注意:本产品含有害物质 DMSO。处理前请先查看 MSDS。
    2. 贮存和处理:感受态细胞应在 -80℃ 下贮存。在 -20℃ 贮存会导致转化效率显著降低。当细胞温度高于 -80℃ 时,即使不融化,细胞也会失去效率。
    3. 维持 miniF 质粒无需抗生素。如果添加氯霉素,则终浓度为 10 µg/ml。

操作说明、说明书 & 用法

  • 操作说明

    1. High Efficiency Transformation Protocol (C3013)
    2. 5 Minute Transformation Protocol (C3013)
    3. Protocol for Expression Using T7 Express lysY/I(C3013)

  • 使用指南

    • Additional E. coli Strain Genotypes
    • Competent E. coli Genome Sequences Tool
    • Genetic Markers
    • McrA, McrBC and EcoKI Strain Phenotypes

  • 应用实例

    • Protein Expression with T7 Express Strains

工具 & 资源

  • 选择指南

    • Characteristics of Select E.coli Strains
    • Competent Cell Selection Guide

FAQs & 问题解决指南

  • FAQs

    1. Why are there no colonies or no growth in liquid culture (C3013)?
    2. Why is there no protein visible on gel or no activity (C3013)?
    3. Why is induced protein insoluble (C3013)?
    4. What are the solutions/recipes (C3013)?
    5. Can I store competent cells at -20°C instead of -80°C?
    6. What is the difference between NEB #C3013H and NEB #C3013I?
    7. What are the strain properties (C3013)?
    8. What is the optimal heat shock time for this strain (NEB #C3013H and NEB #C3013I)?
    9. How long should I incubate cells on ice after DNA has been added (NEB #C3013H and NEB #C3013I)?
    10. Is T7 Express lysY/Iq (NEB #C3013H and NEB #C3013I) compatible with auto-induction procedures?
    11. Which kind of transformation tubes should be used?
    12. What volume of DNA can be added into competent cells?
    13. What is the shelf life for this strain (NEB #C3013H and NEB #C3013I)?
    14. Are NEB’s competent cells compatible with the “Mix & Go” protocol?
    15. Is antibiotic selection necessary to maintain the MiniF-lysY-lacIq plasmid?
    16. Is T7 expression subject to catabolite repression in NEB T7 Express or SHuffle strains?

8-Hydroxy-2′-deoxyguanosine IQ[2-氨基-3-甲基咪唑并(4,5-f)喹啉]


8-Hydroxy-2′-deoxyguanosine

IQ[2-氨基-3-甲基咪唑并(4,5-f)喹啉]

品牌:FUJIFILM Wako
CAS No.:88847-89-6
储存条件:室温
纯度:95.0+% (HPLC)
产品编号

(生产商编号)

等级 规格 运输包装 零售价(RMB) 库存情况 参考值

080-06441

for Biochemistry 5mg 4,060.00


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