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
高保真(HF)限制性内切酶在 CutSmart 缓冲液中具有 100% 活性;统一缓冲液意味着更加直接、简化的样品处理过程。HF 内切酶还会显著降低星号活性。所有 HF 内切酶均符合省时酶(Time-Saver)标准,可在 5-15 分钟内酶切底物 DNA,也可实现过夜酶切而不会造成 DNA 降解。HF 限制性内切酶在改造时便将性能作为重要指标,可在更宽的条件范围下具有完全活性,最大限度地减少非特异性酶切产物,同时为实验设计提供灵活性。
产品来源
E. coli 菌株,携带有克隆自嗜热脂肪芽孢杆菌(Bacillus stearothermophilus)6-55(Z. Chen)的 BsaI 基因
- 产品类别:
- Discontinued (<3 years)
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特性和用法
单位定义
一个单位是指在 50 µl 的总反应体系中,37℃ 条件下,1 小时内酶切 1 µg pXba DNA 所需的酶量。
反应条件
1X CutSmart® 缓冲液
Incubate at 37°C1X CutSmart® 缓冲液
50 mM Potassium Acetate
20 mM Tris-acetate
10 mM Magnesium Acetate
100 µg/ml BSA
(pH 7.9 @ 25°C)在不同缓冲液中的活性
NEBuffer™ 1.1: 75%
NEBuffer™ 2.1: 75%
NEBuffer™ 3.1: 100%稀释兼容性
- 稀释液 B
贮存溶液
10 mM Tris-HCl
300 mM NaCl
1 mM DTT
0.1 mM EDTA
500 µg/ml BSA
50% Glycerol
pH 7.4 @ 25°C热失活
65°C for 20 minutes
甲基化敏感性
dam 甲基化: 不敏感
dcm 甲基化: 某些甲基化与酶切位点的重叠组合影响酶切
CpG甲基化: 某些甲基化与酶切位点的重叠组合阻断酶切 -
相关产品
相关产品
- dam–/dcm– E. coli 感受态细胞
- 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
- 6X 紫色凝胶上样染料
- CutSmart® 缓冲液
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注意事项
- dcm 甲基化与酶切位点重叠阻断酶切。哺乳动物基因组 DNA 的酶切位点与某些 CpG 甲基化重叠组合阻断酶切。
- 50℃ 条件下活性为 100%。
- 在 NEBuffer r1.1 缓冲液中可能出现星号活性。
- 因为反应中酶的稳定性,即使温育时间超过 1 小时也不会提高酶切效率,除非增加酶量。如需了解更多信息,请参阅限制性内切酶在反应中的活性。
- 甘油浓度 >5% 条件下可能出现星号活性
操作说明、说明书 & 用法
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操作说明
- Optimizing Restriction Endonuclease Reactions
- Restriction Digest Protocol
- Double Digest Protocol with Standard Restriction Enzymes
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使用指南
- Activity at 37°C for Restriction Enzymes with Alternate Incubation Temperatures
- Activity of Restriction Enzymes in PCR Buffers
- Cleavage Close to the End of DNA Fragments
- Dam and Dcm Methylases of E. coli
- Digestion of Agarose-Embedded DNA: Info for Specific Enzymes
- Double Digests
- Effects of CpG Methylation on Restriction Enzyme Cleavage
- Expanded “assembly standards” for MoClo, GoldenBraid2.0 and other modular Golden Gate Assembly methods
- Heat Inactivation
- NEBuffer Activity/Performance Chart with Restriction Enzymes
- Optimizing Restriction Endonuclease Reactions
- Restriction Endonucleases – Survival in a Reaction
- Restriction Enzyme Diluent Buffer Compatibility
- Restriction Enzyme Tips
- Single Letter Codes
- Star Activity
- Technical Tips For Optimizing Golden Gate Assembly Reactions
- Traditional Cloning Quick Guide
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应用实例
- Breaking through the Limitations of Golden Gate Assembly
工具 & 资源
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选择指南
- Alphabetized List of Recognition Sequences
- Cleavage of Supercoiled DNA
- Compatible Cohesive Ends and Generation of New Restriction Sites
- Dam-Dcm and CpG Methylation
- Enzymes with Nonpalindromic Sequences
- Frequencies of Restriction Sites
- Isoelectric Points (pI) for Restriction Enzymes
- Isoschizomers
- NEB Diluent and Buffer Table
- Time-Saver™ Qualified Enzymes
- Type IIS Restriction Enzymes
- Why Choose Recombinant Enzymes?
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Web 工具
- Competitor Cross-Reference Tool
- DNA Sequences and Maps Tool
- Double Digest Finder
- Enzyme Finder
- NEBcutter™ v3.0
- NEBioCalculator®
- REBASE®
FAQs & 问题解决指南
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FAQs
- Which restriction enzymes are used in Golden Gate Assembly?
- Which restriction enzymes are used in GoldenBraid Assembly?
- Which NEB restriction enzymes are supplied with Gel Loading Dye, Purple (6X)?
- What is the activity of the Type IIS restriction enzyme BsaI-HFv2 (NEB #R3733) in T4 DNA Ligase Buffer?
- Is this enzyme sensitive to dam, dcm or mammalian CpG methylation?
- Can Gel Loading Dye, Purple 6X (B7024) be stored in cold temperatures?
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问题解决指南
- Restriction Enzyme Troubleshooting Guide
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实验技巧
- 用于 Golden Gate 组装的限制性内切酶
- 用于 Golden Gate 组装的限制性内切酶