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
产品来源
大肠杆菌菌株,携带克隆自水生嗜热菌(Thermus aquaticus)的 TaqI 修饰基因。
- 产品类别:
- Methyltransferases for Epigenetics Products,
- Methyltransferases Products
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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 -
M0219S -20 TaqI Methyltransferase M0219SVIAL -20 1 x 0.1 ml 10,000 units/ml rCutSmart™ Buffer B6004SVIAL -20 1 x 1.25 ml 10 X S-adenosylmethionine (SAM) B9003SVIAL -20 1 x 0.1 ml 32 mM
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特性和用法
单位定义
1 个单位是指在 65℃ 条件下,20 μl 反应体系中,1 小时内能保护 1 μg λ DNA 不被 TaqI 限制性内切酶切割所需的酶量。
反应条件
1X rCutSmart™ 缓冲液
Supplement with 80 µM S-腺苷甲硫氨酸(SAM)
Incubate at 65°C1X rCutSmart™ 缓冲液
50 mM Potassium Acetate
20 mM Tris-acetate
10 mM Magnesium Acetate
100 µg/ml Recombinant Albumin
(pH 7.9 @ 25°C)对照保护实验
保护能力测定条件:
TaqI 甲基转移酶与 1 µg λ DNA 在 20 µl 含 80 µM S-腺苷甲硫氨酸的 1X rCutSmart 缓冲液中,于 65℃ 温育 1 小时。TaqI 甲基转移酶的保护能力测定是通过添加 30 µl 1X rCutSmart 缓冲液和 10 个单位的 TaqI 限制性内切酶,65℃ 条件下温育 15 分钟后用琼脂糖凝胶电泳分析。贮存溶液
10 mM Tris-HCl
100 mM NaCl
1 mM DTT
0.1 mM EDTA
200 µg/ml BSA
50% Glycerol
pH 7.4 @ 25°C热失活
否
分子量
理论上的: 47845 道尔顿
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相关产品
单独销售的组分
- NEBuffer 4
- Purified BSA
- S-腺苷甲硫氨酸(SAM)
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注意事项
- 37℃ 条件下 TaqI 甲基转移酶具有 25% 的活性。
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参考文献
- Hoffman, J.L. (1986). Biochemistry. 25, 4444-4449.
操作说明、说明书 & 用法
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操作说明
- Recommended Protocol for 3H labeling of DNA
- Recommended Protocol for Methylation of Genomic DNA
FAQs & 问题解决指南
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FAQs
- Is S-adenosylmethionine (SAM) supplied with the Methyltransferase?
- What should be considered if the methylation is not going to completion?
- What is the activity of TaqI Methyltransferase at 37°C?
- What is the activity of TaqI Methyltransferase at 50°C?
- Does TaqI Methyltransferase require MgCl2?
- Does TaqI Methyltransferase require BSA?
- What is the activity of TaqI Methyltransferase in other buffers?
- What is the molecular weight of TaqI Methyltransferase?
- Is TaqI Methyltransferase used in any special techniques?
- Will any NEB methyltransferases (methylases) work on RNA?
- Can you tell me more about the switch from BSA to Recombinant Albumin (rAlbumin) in NEBuffers?