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商品描述
Concentration | 100mM Stock Solution |
---|---|
Application | Blue/white colony screening |
Induction of lac operon of protein expression |
IPTG (isopropyl-beta-D-thiogalactopyranoside) is a highly stable synthetic analog of lactose. It inactivates the lac repressor and induces synthesis of beta-galactosidase, an enzyme that promotes lactose utilization. The IPTG is used to induce the expression of cloned genes which are under control of the lac operon. It is used in conjunction with X-Gal to determine the lac phenotype in blue/white colony screening.
Gendepot的T4 DNA连接酶是最通用的DNA克隆连接酶。这种ATP依赖性酶将5'-磷酸与3'-羟基化的末端共价连接,这些末端是通过限制性酶消化或其他酶促过程产生的双链DNA片段的平末端或相容的内聚末端。T4 DNA连接酶对单链核酸无活性。连接反应后,可通过在65℃温育10分钟使T4 DNA连接酶失活。