T4 DNA Ligase for NGS,阿拉丁

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上海阿拉丁生化科技股份有限公司
400-620-6333
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  • Brand  阿拉丁产地上海
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  • Main Business:高端化学试剂,生物试剂,材料化学,分析试剂
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Last Updated 2025-08-12 18:58

T4 DNA Ligase for NGS,阿拉丁

T4 DNA Ligase是从表达T4 DNA Ligase基因的大肠杆菌经诱导表达后分离纯化而来的,催化相邻DNA链的5’磷酸基团和3’羟基基团以磷酸二酯键结合反应。该酶可催化平末端或粘性末端DNA的连接,修复双链DNA、RNA、DNA/RNA杂交中的单链中的单链切口,但是对于单链核苷酸,没有活性。

T665501Component1500 U7500 UStorage
T665501AT4 DNA Ligase, 15 U/μL100 μL500 μL -20°C. Avoid freeze/thaw cycle.
T665501B4×T4 DNA Ligase Buffer600 μL2×1.5 mL -20°C. Avoid freeze/thaw cycle.

活性定义:

1U是指在ATP-PPi交换反应中,37°C、20分钟内将1nmol [32PPi]转换为Norit可吸收形式所需的酶量,相当于约 200个粘性末端连接单位。

应用范围: 

主要用于NGS中文库构建过程中的Adaptor连接。 

使用方法:

建议使用Adaptor进行连接,也可选择使用NEB、Illumina公司的Adaptor,具体连接方法可参考各公司的产品使用说明书。以下为使用Adaptor进行连接的操作步骤:

1.向已完成DNA末端修复的反应液中直接加入以下试剂: 


此时管中溶液总体积为100 μL。 

注意:若起始样本量少于100 ng,请将Adaptor用去离子水稀释10倍至1.5 μM后使用。

2.用枪上述试剂吹吸混匀,短暂离心,使溶液收集到管底。 

3.23℃温浴20分钟。 

注意:若此操作使用PCR仪,请将热盖关闭。 

4.继续进行后续步骤,如DNA片段的选择性回收或DNA片段的纯化。 

Company Name 上海阿拉丁生化科技股份有限公司
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Business Scope 高端化学试剂,生物试剂,材料化学,分析试剂
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