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本公司生产的 T4 多聚核苷酸激酶,即 T4 Polynucleotide Kinase,简称 T4 PNK,是一种多聚核苷酸 5'羟基激酶,可以催化 ATP 的γ位磷酸基团向单链或双链 DNA、RNA、寡核苷酸或带有 3'磷酸基团的单核苷酸的 5'羟基转移。其它 NTP 也可产生相同的反应:5'-OH + NTP → 5'-P + NDP。上述的磷酸化反应是可逆的。当缺失 ATP 并且存在 ADP 的情况下,T4 Polynucleotide Kinase 可以显示出 5'磷酸酯酶的活性,催化单链或双链 DNA、RNA、寡核苷酸或带有 3'磷酸基团的单核苷酸的 5'磷酸基团向 ADP 的转移形成 ATP。其它 NTP 也可产生相同的反应:5'-P + NDP → 5'-OH + NTP(最适 pH 为 6.4 左右)。当 ATP 和 ADP 都适量存在时,T4 Polynucleotide Kinase 可以催化单链或双链 DNA、RNA、寡核苷酸或带有 3'磷酸基团的单核苷酸的 5'磷酸基团和 ATP 的γ位磷酸基团之间的交换反应。其它 NTP 也可产生相同的反应:5'-P + NTP + NDP → 5'-P + NDP + NTP。T4Polynucleotide Kinase 同时具有 3'磷酸酯酶活性,可催化 3'磷酸化的多聚核苷酸的去磷酸化:3'-P → 3'-OH + Pi (最适 pH 为 5.9 左右)。T4Polynucleotide Kinase 的激酶活性在 N-末端附近,而磷酸酯酶活性在 C-末端附近。 纯度(Purity):不含 DNA 内切酶和外切酶,不含 RNA 酶。 组分和说明 T665879
Chinese name
T4 多聚核苷酸激酶 (T4 PNK)
English name
T4 Polynucleotide Kinase
Chinese alias
T4多核苷酸激酶 | T4多聚核苷酸激酶 | 核苷酸5'-激酶和3'-磷酸酶 | T4多核苷酸激酶
English alias
T4Polynucleotide Kinase | T4 PNK | Polynucleotide 5'-kinase and 3'-phosphatase | pseT
CAS number
NP_049834.1
molecular formula
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molecular weight
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Exact mass
无动物源
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Research chemical

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

item number:T665879-5×2KU
Product model:5×2KU
level: No animal source
Lead Time:30days
sold 549 Items
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