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71011 Taq DNA Polymerase (Buff

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北京诺博莱德科技有限公司
18911522826 010-62817090
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  • Main Business:化工原料、生化试剂、分子克隆相关试剂、细胞培养及检测常用试剂
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Last Updated 2025-08-12 20:13

71011 Taq DNA Polymerase (Buff

Taq DNA Polymerase (Buffer 含 Mg2+) 

 

目录号:71011

产品内容

产品成份

71011-0500

71011-03000

Taq DNA Polymeras(5U/µl)

500 U

3000 U

10× Taq Buffer+(with Mgcl2)

1 ml

6×1ml

保存条件

-20℃保存,有效期 2 年。

经常使用,可置于 4 °C 保存,有效期 3 个月。

产品简介

Taq DNA Polymerase 是从克隆有 Thermu aquaticus DNA Polymerase 基因的大肠杆菌经诱导表后分离纯化的,其分子量为94 KD。 Taq DNA Polymerase具有5′-3′DNA聚合酶活性和5′-3′外切核酸酶活性,无 3′-5′外切酶活性。在PCR反应中,Taq DNA Polymerase 延伸速度为1-2 kb/ 分钟,产物3′端带A,可直接用于TA载体克隆(Cat#V114)。

活性单位:

1 单位(U)Taq DNA Polymerase 活性定义为在 74℃、30 分钟内,

以活性化的大马哈鱼精子 DNA 作为模板引物,将 10 nmol 脱氧核苷酸掺入

到酸不溶物质所需的酶量。

质量控制:

SDS-PAGE 检测纯度大于 99%,经检测无外源核酸酶活性;PCR 方法 检测无宿主残余 DNA,能有效地扩增人基因组中的单拷贝基因;室温存放一 周,无明显活性改变。

酶贮存缓冲液:

20mM Tris-HCl (pH8.0),0.1 mM EDTA,1mM DTT,100 mM KCl,Stabilizers,50% glycerol。

10×Taq Buffer (含Mg2+):

200 mM Tris-HCl (pH 8.4),200 mM KCl, 100 mM(NH4)2 SO4,15 mM MgCl2,其他成分。

适用范围:

一般用于DNA片断的PCR扩增、DNA标记、引物延伸、序列测定、平末端加A等,产物可以直接用于TA载体克隆。

Taq DNA Polymerase 的使用说明:

一、配制 PCR 反应体系:(于冰上配制)

Component

20 μl Reaction

50 μl Reaction

终浓度

Template DNA

as required

as required

10pg-0.5μg

Forward Primer (10 M)

0.4 μl

1 μ

0.2 μM

Reverse Primer (10 μM)

0.4 μl

1 μl

0.2 μM

10×Buffer+(withmgcl2)

2 μl

5 μ

1 ×

dNTP Mixture(各2.5mM)

1.6 μ

4 μl

0.2 μM

Taq DNA polymerase(5U/μl)

0.2-0.4 μl

0.5-1 μl

 

ddH2O

up to 20 μl

up to 50 μ

 

参考模板用量(50 μl 反应体系):

质粒:0.1-10 ng;细菌基因组:10-100 ng;人类基因组:50-150 ng;cDNA:1-5 μl from RT。

一、              设置 PCR 循环条件:(请根据实际情况适当调整)

Step

Temperature

Tim

Cycle Number

Initialdenaturation

94℃

3 minutes

 

Denaturation

94℃

30 seconds

30-35 cycles

Annealing

55℃

30 seconds

Extension

72℃

1-2 kb / minute

Final Extension

72℃

5 minutes

 

 

4-8℃

Hold

 

三、结果检测:反应结束后取 5 µl 反应产物,琼脂糖凝胶电泳检测。

Company Name 北京诺博莱德科技有限公司
Location
Business Scope 化工原料、生化试剂、分子克隆相关试剂、细胞培养及检测常用试剂
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Medicine Platform
 
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