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Molecular Biology
Quality Level
form
buffered aqueous glycerol solution
specific activity
4,000 U/mL
mol wt
68 kDa
UniProt accession no.
storage temp.
−20°C
Gene Information
bacteriophage T4 ... 30(1258680)
Application
适用于:
- 平端和粘性DNA片段的连接
- 克隆载体和限制性插入片段的连接
- 双链DNA和RNA或DNA/RNA杂合体中的缺口补平
- 通过桥连寡核苷酸接头来偶联RNA单链
Biochem/physiol Actions
T4 DNA连接酶可在双链体DNA的相邻多核苷酸的末端之间形成能量依赖性的磷酸二酯键。连接反应需要ATP作为辅助因子。平末端片段的连接需要更高的酶浓度并可通过在反应混合物中使用PEG来促进。该酶需要3′羟基和5′磷酸基用于连接。可通过用碱性磷酸酶进行去磷酸化来防止载体DNA的自连。T4连接酶在DNA和RNA缺口的修复中可发挥积极作用。
Other Notes
T4 DNA连接酶以溶于20 mM Tris-HCl(pH 7.5),50 mM KCl,1 mM DTT和50%(v/v)甘油的溶液形式提供。
T4 DNA连接酶可通过在65 °C加热10分钟灭活。
一个Weiss单位的定义是在37℃ 下,在20分钟内催化1 nmol的P32从焦磷酸盐交换至ATP作为Norit可吸收物质所需的酶量。
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
存储类别
10 - Combustible liquids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
法规信息
常规特殊物品
此项目有
Sambrook, J., et al.
Molecular Cloning: A Laboratory Manual, 1-1 (1989)
Tiansheng Wang et al.
Bioorganic & medicinal chemistry letters, 22(11), 3699-3703 (2012-05-09)
A series of 4-amino-pyrido[2,3-d]pyrimidin-5(8H)-ones were designed and synthesized as a novel class of inhibitors of NAD(+)-dependent DNA ligase that possess potency against Gram-positive bacteria.
P Upcroft et al.
Gene, 51(1), 69-75 (1987-01-01)
We describe a system to generate cDNA or genomic libraries from DNA segments that have blunt termini. Background and rearrangement levels are low, but efficiencies are high and the procedural times very short. T4 ligase in the presence of polyethylene
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| D2886-100UN | 04061835572540 |
| D2886-500UN | 04061833562642 |
