货号:L6060L
产品描述:
使用NAD +作为辅因子,Taq DNA连接酶催化在含有相邻5'-磷酰基和3'-羟基末端的双链DNA中形成磷酸二酯键。
规格: | 20,000 U |
浓度: | 40,000 U/ml |
保存: | -25°C至-15°C |
纯度(SDS-PAGE) | > 99% |
活性: | 400,000 U/mg |
SS核酸外切酶 | 400 U <5.0% released |
DS核酸外切酶 | 400 U <1.0% released |
DS内切核酸酶 | 400 U = No conversion |
大肠杆菌 DNA污染 | 400 U <10 copies |
蛋白质来源
重组大肠杆菌菌株携带Taq DNA连接酶基因的克隆。
提供:
10 mM Tris-HCl
50 mM KCl
1 mM DTT
0.1 mM EDTA
0.1% Tween-20
50% glycerol
pH 7.5 @ 25°C
随附:
B6060 (10X Taq DNA Ligase Buffer)
10X Taq DNA Ligase Buffer (B6060):
200 mM Tris-HCI
250 mM KCl
100 mM MgCl2
5 mM NAD
0.1% Triton X-100
pH 7.6 @ 25°C
单位定义
1单位定义为在50μl1X Taq DNA连接酶缓冲液中10分钟后加入1μg用Sma I和Sal I切割的Lambda DNA的12个碱基粘性末端的50%所需的Taq DNA连接酶的量在45℃孵育。
质量控制分析
单位表征测定
单位活性使用2倍系列稀释法测量。在1X Taq DNA连接酶反应缓冲液中进行酶批次的稀释并加入到50μL含有λHind III消化的DNA和1X Taq DNA连接酶反应缓冲液的反应中。将反应在45℃孵育10分钟,停止,并在用溴化乙锭染色的0.8%琼脂糖凝胶上分析。
SDS-Page(物理纯度评估)
将2.0μL浓缩的酶溶液加载到变性的4-20%Tris-甘氨酸SDS-PAGE凝胶上,该凝胶侧翼为宽范围的MW标记和2.0μL的1:100稀释的相同酶物种。电泳后,将凝胶染色并比较样品以确定物理纯度。该测试的验收标准要求浓缩样品中污染带的总量不超过稀释样品中目的蛋白质条带的质量,确认浓缩样品的纯度大于99%。
污染测试
单链核酸外切酶活性
将含有10,000cpm放射性标记的单链DNA底物的50μL反应液和10μL在37℃下孵育4小时的酶溶液导致TCA可溶性计数的释放小于5.0%。
双链核酸外切酶活性将含有5,000cpm放射性标记的双链DNA底物和10μL酶溶液的50μl反应液在37℃下温育4小时,导致TCA可溶性计数的释放少于1.0%。
双链核酸内切酶活性将含有0.5μgpENZuC DNA和10μL酶溶液的50μL反应物在37℃下温育4小时,结果通过琼脂糖凝胶电泳测定没有肉眼可察觉地转变为带切口的环状DNA。
大肠杆菌 16S rDNA污染测试
重复5μL酶溶液样品变性,并在TaqMan qPCR测定中筛选污染性大肠杆菌基因组DNA,使用对应于16S rRNA基因座的寡核苷酸引物。测试的验收标准是由3个重复的无模板对照样品的平均值产生的阈值循环计数(C t)。基于无模板对照 Ct值和标准曲线数据之间的相关性,该测定的检测限为<10拷贝基因组/样品。
部分产品信息:
货号 | 品名 | 规格 | 浓度 | 品牌 |
---|---|---|---|---|
N2070-10-L | ATP Solution | 50 µmol | 10 mM | Enzymatics |
N2050-10-L | 10 mM dNTP Solution Mix | 100 µmol | 10 mM | Enzymatics |
N2010L | 100 mM 75µmol dNTP Solution Set | 75 µmol | 100 mM | Enzymatics |
N2010-A-L | 100 mM dATP Solution | 75 µmol | 100 mM | Enzymatics |
N2050L | 100µmol dNTP Solution Mix | 100 µmol | 25 mM | Enzymatics |
Y9180L | 10x Uracil Cleavage System | 750 Reactions | N/A | Enzymatics |
P7670 | 2x HiFi PCR Master Mix | 1 rxn | 2x | Enzymatics |
Y9420L | 5x ER/A-Tailing Enzyme Mix | 24 reactions | N/A | Enzymatics |
Y9380L | E. coli Pyrophosphatase | 50 U | 100 U/mL | Enzymatics |
Y9030L | E. coli Single-Stranded DNA Binding Protein | 1.5 mg | 2.75 mg/ml | Enzymatics |
Y9140-HC-L | End-Repair Mix (High Concentration) | 75 Reactions | 1 Rxn/µL | Enzymatics |
Y9140-LC-L | End-Repair Mix (Low Concentration) | 200 Reactions | 1 Rxn/µL | Enzymatics |
Y9080L | Endonuclease VIII | 10,000 U | 10,000 U/ml | Enzymatics |
P7600L | EnzScript™ (MMLV Reverse Transcriptase RNase H-) | 10,000 U | 200,000 U/mL | Enzymatics |
X8010L | Exonuclease I | 30,000 U | 20,000 U/ml | Enzymatics |
X8020L | Exonuclease III | 50,000 U | 100,000 U/ml | Enzymatics |
P7010-HC-L | Klenow (3′→ 5′ exo-) (High Concentration) | 10,000 U | 50,000 U/ml | Enzymatics |
P7010-LC-L | Klenow (3′→ 5′ exo-) (Low Concentration) | 10,000 U | 5,000 U/ml | Enzymatics |
P7060L | Klenow Fragment | 2,500 U | 5,000 U/ml | Enzymatics |
X8030L | Lambda Exonuclease | 10,000 U | 5,000 U/ml | Enzymatics |
P7040L | M-MuLV Reverse Transcriptase | 100,000 U | 200,000 U/ml | Enzymatics |
P7090L | Mako DNA Polymerase (3′→ 5′ exo-) | 3,000 U | 30,000 U/ml | Enzymatics |
P7140-HC-L | Manta 1.0 DNA Polymerase (High Concentration) | 100,000 U | 400,000 U/ml | Enzymatics |
P7140-LC-L | Manta 1.0 DNA Polymerase (Low Concentration) | 100,000 U | 40,000 U/ml | Enzymatics |
P7610L | NGS Library Prep: 2X VeraSeq™ PCR Mix – 250 Reactions | 250 Reactions | 2X | Enzymatics |
P7590L | Phoenix™ Hot Start Taq DNA Polymerase | 500 U | 5,000 U/ml | Enzymatics |
P7460L | Poly(A) Polymerase | 1,000 U | 5,000 U/mL | Enzymatics |
Y9260L | RecA | 1.5 mg | 2.0 mg/mL | Enzymatics |
Y9220L | RNAse H | 5,000 U | 5,000 U/ml | Enzymatics |
Y9240L | RNAse Inhibitor | 20,000 U | 40,000 U/ml | Enzymatics |
L6010L | T3 DNA Ligase | 900,000 U | 3,000,000 U/ml | Enzymatics |
L6030-LC-L | T4 DNA Ligase | 150,000 U | 120,000 U/ml | Enzymatics |
L6030-HC-L | T4 DNA Ligase (Rapid) | 240,000 U | 600,000 U/ml | Enzymatics |
P7080L | T4 DNA Polymerase | 2,000 U | 3,000 U/ml | Enzymatics |
Y9130L | T4 Gene 32 Protein | 1.0 mg | 10 mg/mL | Enzymatics |
Y9040L | T4 Polynucleotide Kinase | 10,000 U | 10,000 U/ml | Enzymatics |
L6050L | T4 RNA Ligase 1 | 10,000 U | 20,000 U/ml | Enzymatics |
L6080L | T4 RNA Ligase 2 | 4,500 U | 30,000 U/ml | Enzymatics |
L6070L | T4 RNA Ligase 2 Truncated | 500 U | 5,000 U/ml | Enzymatics |
L6020L | T7 DNA Ligase | 900,000 U | 3,000,000 U/ml | Enzymatics |
P7260L | T7 DNA Polymerase | 3,500 U | 10,000 U/ml | Enzymatics |
P7180L | T7 RNA Polymerase | 50,000 U | 50,000 U/ml | Enzymatics |
L6060L | Taq DNA Ligase | 20,000 U | 40,000 U/ml | Enzymatics |
P7110L | Taq DSC 2.0 DNA Polymerase | 1,250 U | 5,000 U/ml | Enzymatics |
P7250L | Taq-B DNA Polymerase | 10,000 U | 5,000 U/ml | Enzymatics |
P7620L | TaqIT | 5,000 U | 50,000 U/mL | Enzymatics |
P7070L | Terminal deoxynucleotidyl Transferase (TdT) | 6,000 U | 20,000 U/ml | Enzymatics |
G5020L | Thermolabile UDG | 500 U | 1,000 U/ml | Enzymatics |
Y9370L | Thermostable Pyrophosphatase | 1,250 U | 2,000 U/ml | Enzymatics |
G5010L | Uracil DNA Glycosylase | 10,000 U | 2,000 U/ml | Enzymatics |
P7511L | VeraSeq™ 2.0 High-Fidelity DNA Polymerase | 500 U | 2,000 U/ml | Enzymatics |
P7520L | VeraSeq™ ULtra DNA Polymerase | 500 U | 2,000 U/ml | Enzymatics |
L6030-W-L | WGS Ligase | 24 Reactions | N/A | Enzymatics |
P7640L | ZipScript™ One-Step RT-qPCR Kit | 1000 Reactions | N/A | Enzymatics |
P7020-HC-L | φ29 DNA Polymerase (High Concentration) | 2,000 U | 100,000 U/ml | Enzymatics |
P7020-LC-L | φ29 DNA Polymerase (Low Concentration) | 2,000 U | 10,000 U/ml | Enzymatics |
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