貨號(hào):L6020L
產(chǎn)品描述:
T7 DNA連接酶催化雙鏈DNA中5'磷酸和3'羥基末端之間形成磷酸二酯鍵。該酶將加入平端和粘性末端以及修復(fù)雙鏈DNA中的單鏈缺口。
規(guī)格: | 900,000 U |
濃度: | 3,000,000 U/ml |
保存: | -25°C至-15°C |
純度(SDS-PAGE) | > 99% |
活性: | 3,000,000 U/mg |
SS核酸外切酶 | 30,000 U <1.0% released |
DS核酸外切酶 | 30,000 U <1.0% released |
DS內(nèi)切核酸酶 | 30,000 U = No conversion |
大腸桿菌 DNA污染 | 30,000 U <10 copies |
其他 | 1.在沒有高濃度擁擠劑(例如20-30%PEG 6-8000)的情況下,T7 DNA連接酶的特異性活性在平末端片段上減少1000倍(1,2)。 2.T7 DNA連接酶不能連接單鏈DNA的片段(1)。 |
蛋白質(zhì)來源
攜帶T7 DNA連接酶基因的重組大腸桿菌菌株。
提供:
20mM Tris-HCl
50mM NaCl
1mM DTT
0.1mM EDTA
50%甘油
pH 7.5在25℃
隨附:
B1010 (2X Rapid Ligation Buffer)
2X Rapid Ligation Buffer (B1010):
132mM Tris-HCI
20 mM MgCl2
2 mM DTT
2 mM ATP
15% PEG 6000
pH 7.6 @ 25°C
單位定義
1單位定義為在23℃30分鐘內(nèi)連接50ng 100ng DNA的片段與粘性末端所需的T7 DNA連接酶的量。
質(zhì)量控制分析
單位表征測定
單位活性使用2倍系列稀釋法測量。在1X快速連接緩沖液中進(jìn)行酶稀釋,并加入到20μL含有雙鏈DNA的片段和1X快速連接緩沖液的反應(yīng)中。將反應(yīng)在?23℃(室溫)孵育30分鐘,在冰上沉降,并在用溴化乙錠染色的1%瓊脂糖凝膠上分析。
蛋白質(zhì)濃度(OD 280)測量使用使用2.0mg / ml BSA樣品(Pierce Cat#23209)標(biāo)準(zhǔn)化的Nanodrop ND-1000分光光度計(jì)
在OD 280處分析2.0μL酶樣品并用產(chǎn)品儲(chǔ)存溶液沖切。觀察到的3個(gè)重復(fù)樣品的平均測量值使用67,850的消光系數(shù)和41,132道爾頓的分子量轉(zhuǎn)換為mg / mL。
SDS-Page(物理純度評(píng)估)
將2.0μL濃縮的酶溶液加載到變性的4-20%Tris-甘氨酸SDS-PAGE凝膠上,該凝膠側(cè)翼為寬范圍的MW標(biāo)記和2.0μL的樣品的1:100稀釋物。電泳后,將凝膠染色并比較??樣品以確定物理純度。該測試的驗(yàn)收標(biāo)準(zhǔn)要求濃縮樣品中污染帶的總量不超過稀釋樣品中目的蛋白質(zhì)條帶的質(zhì)量,確認(rèn)濃縮樣品的純度大于99%。
污染測試
單鏈核酸外切酶活性
將含有10,000cpm放射性標(biāo)記的單鏈DNA底物和10μL酶溶液的50μL反應(yīng)物在37℃下溫育4小時(shí),導(dǎo)致TCA可溶性計(jì)數(shù)的釋放小于1.0%。
雙鏈外切核酸酶活性將含有5,000cpm放射性標(biāo)記的雙鏈DNA底物和10μL酶溶液的50μL反應(yīng)物在37℃下溫育4小時(shí),導(dǎo)致TCA可溶性計(jì)數(shù)的釋放小于1.0%。
雙鏈核酸內(nèi)切酶活性將含有0.5μgpBR322 DNA和10μL酶溶液的50μL反應(yīng)物在37℃下溫育4小時(shí),結(jié)果通過瓊脂糖凝膠電泳確定沒有肉眼可察覺地轉(zhuǎn)化為帶切口的環(huán)狀DNA。
大腸桿菌 16S rDNA污染測試
復(fù)制酶溶液的5uL樣品變性,并在TaqMan qPCR測定中篩選污染性大腸桿菌基因組DNA,使用對(duì)應(yīng)于16S rRNA基因座的寡核苷酸引物。測試的驗(yàn)收標(biāo)準(zhǔn)是由3個(gè)重復(fù)的無模板對(duì)照樣品的平均值產(chǎn)生的閾值循環(huán)計(jì)數(shù)(C t)?;跓o模板對(duì)照 Ct 值與標(biāo)準(zhǔn)曲線數(shù)據(jù)之間的相關(guān)性,該測定的檢測限為<10拷貝基因組/樣品。
部分產(chǎn)品信息:
貨號(hào) | 品名 | 規(guī)格 | 濃度 | 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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