Taq DNA聚合酶 来源于水生栖热菌

2.7.7.7 ( BRENDA | IUBMB )

MFCD00166026

NA.55

Taq DNA Polymerase is a thermostable enzyme derived from the thermophilic bacterium Thermus aquaticus. The enzyme is in a recombinant form, expressed in E. coli. It can withstand repeated heating to 95 ℃ without significant loss of activity. Each lot of Taq DNA Polymerase is tested for PCR amplification and double-stranded sequencing.

Taq DNA Polymerase from Thermus aquaticus has been used:

• in the quantification of fungal growth by polymerase chain reaction (PCR) and photometric assay
• in conventional reverse transcriptase (RT)-PCR
• in simple sequence repeats (SSR) genotyping
• as a component of PCR mix for amplification of genomic and mitochondrial DNA
• in direct tetra-primer amplification refractory mutation system (T-ARMS) PCR to amplify dried whole blood samples

Taq聚合酶可催化寡核苷酸引物驱动的、DNA模板依赖性地将dNTP掺入互补DNA链中。 它具有5′至3′聚合酶和核酸外切酶活性。

Taq DNA聚合酶是一种来自于嗜热菌水生栖热菌( Thermus aquaticus)的特殊热稳定酶。 该酶的重组形式可在大肠杆菌( E. coli)中表达。 经过SDS-PAGE分析显示，这种分子量为94kDa的蛋白质不含可检测水平的污染性核酸内切酶或核酸外切酶。 它具有5′→3′聚合酶和核酸外切酶活性。

一个酶活性单位是指在74℃下在30分钟内将10 nmol总dNTP掺入酸性可沉淀DNA中所需的酶量。

本产品的使用受到如下一项或多项美国专利及其对应的境外专利声明保护：US 8,404,464和US 7,972,828。 购买本产品，即相当于依照境外的专利声明获得了一份受限制、不可转让的使用许可。

expressed in E. coli

liquid

sufficient for 10000 reactions
sufficient for 3000 reactions
sufficient for 500 reactions

94 kDa

dNTPs included: no
hotstart: no

5 units/μL

PCR: suitable

colorless

purified DNA

suitable for PCR and automated sequencing reactions

agriculture

wet ice

−20℃

Taq DNA聚合酶具有两种形式，含MgCl₂的优化型10倍反应缓冲液(D1806)，或不含MgCl₂的10倍反应缓冲液加独立管装MgCl₂以用于滴定(D4545)。 第二种形式可能是确定最佳扩增条件所必需的。
含有MgCl_{2的Taq DNA聚合酶10倍反应缓冲液}

12 - Non Combustible Liquids

WGK 3