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Product details
名称
AlkB (RNA/DNA 去甲基化酶, Nuclease-free)
英文别名
alkB | aidD | ECK2204
货号
A743741-25×200U
包装规格
25×200U
级别
无动物源
浓度
20 U/µL
产品介绍
本公司生产的 AlkB (RNA/DNA 去甲基化酶, Nuclease-free) 即 AlkB (RNA/DNA demethylase, Nuclease-free)是由本公司自主研发的技术平台 通过大肠杆菌表达、纯化获得的不含 DNase 和 RNase 的高品质重组酶。AlkB 是一种α-酮戊二酸(α-Ketoglutarate, α-KG)和 Fe(II)依赖的双加氧 酶(Dioxygenase),可以有效地修复单链或双链 DNA 和 RNA 中的各种烷基化损伤(Alkylation damage),常被用于去除 RNA 中的 m6A 等甲基化 修饰,去除 DNA 中的 m1A、m3C、m6A 等修饰,并进一步用于后续的 qPCR 或高通量测序分析。N6-Methyladenosine (m6A)是真核生物中一 种最普遍和丰富的 RNA 转录后修饰,存在于各类真核或病毒 RNA,包括 mRNA、rRNA、tRNA、snRNA、microRNA (miRNA)和长链非编码 RNA (Long non-coding RNA, lncRNA)中,这种修饰被认为占据了超过 80%的 RNA 甲基化修饰。mRNA 转录物中 m6A 的丰度会影响 RNA 的多种代谢 过程,例如剪接(Splicing)、出核(Nuclear export)、翻译的能力及稳定性以及 RNA 转录。AlkB 可以在体外以α-酮戊二酸和 Fe(II)依赖的方式催化 RNA 的 m6A 去甲基化,通过生成 6-羟甲基衍生物(HO-m6A)并进一步转化为腺嘌呤(Adenine)。AlkB 是细菌暴露于甲基化试剂环境时产生的一种 适应性应激反应蛋白,不仅可以修复 RNA 的甲基化损伤,还可以修复 DNA 的甲基化损伤。AlkB 催化 DNA 中 1-甲基腺嘌呤(m1A)和 3-甲基胞嘧 啶(m3C)的去甲基化需要 O2、Fe2+和α-酮戊二酸的参与;AlkB 在催化 DNA 去甲基化修饰的同时,将α-酮戊二酸转化为琥珀酸和 CO2,并生成不 稳定的羟甲基,被羟基化的甲基再以甲醛的形式释放。单链 DNA (ssDNA)比双链 DNA (dsDNA)中的腺嘌呤的 N1 和胞嘧啶的 N3 更容易受到甲基 化影响,因此,相比 dsDNA,AlkB 对 ssDNA 中的损伤修复更为高效。 纯度(Purity) 不含 DNA 内切酶和外切酶,不含 RNA 酶,不含磷酸酯酶。 组分和说明 A743741
生物活性
One unit (U) is the amount of AlkB that removes 90-100% of the m6A modifications in total RNA of HEK 293T cells in 20 ul of reaction mixture at 37℃ after 100minutes of incubation. Under the regular conditions, the enzymatic activity of 1 μg of AlkB is approximately 1 unit.
来源
重组表达
表达系统
E. coli Accession #: P05050.1 | E. coli
种属
大肠杆菌K12株(Escherichia coli (strain K12))
无动物源
Yes
无载体
Yes
Safety
「No Dangerous Attributes」
Related
「No upstream and downstream information yet」
Technical Documents
「No technical documents」
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「No related articles yet」
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Research chemical

Research chemical; supplied for laboratory research, analysis, inspection, and scientific procurement use.

item number:A743741-25×200U
Product model:25×200U
level: No animal source
Lead Time:30days
sold 543 Items
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25×200U

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