aLICator LIC Cloning and Expression Kit 4 (N-terminal His-tag/WQ)

货号：K1281

规格：K1281

价格：2557

产品类型：分子生物学

品牌：Thermo Fisher

描述Thermo Scientific aLICator™ LIC Cloning and Expression System is designed for fast and efficient ligation independent cloning and tight regulation of gene expression inE. coli. The pLATE bacterial expression vectors are designed for high levels of target protein expression in concert with minimal background (uninduced) expression, which permits expression of proteins that are toxic toE. colicells. To streamline and facilitate the process of insert cloning into the expression vector, the aLICator system uses directional LIC cloning technology, a rapid procedure that provides high-cloning efficiencies.The tightly regulated expression and fast, efficient directional cloning makes the aLICator LIC Cloning and Expression System the best choice for routine and toxic gene cloning and expression inE. coli.Highlights• High efficiency LIC cloning• Tight control of gene expression• High yield expression• Versatile—tagged or untaged protein expression with tag removal optionApplications• Directional PCR product cloning• Tightly regulated protein expression• Expression of toxic genesPrincipleThe aLICator LIC cloning system uses directional LIC cloning technology to streamline and facilitate cloning into an expression vector. LIC ensures high-cloning efficiencies of more than 95% and eliminates the need for ligation and restriction enzyme digestion steps.The LIC method uses T4 DNA polymerase to create specific 14 to 21 nucleotide single-stranded overhangs on the pLATE vectors and DNA inserts. T4 DNA polymerase has two enzymatic activities: 5'→3' polymerase activity and 3'→5' exonuclease activity. The exonuclease activity removes nucleotides from the 3' ends of the DNA while the polymerase activity restores the chain using dNTPs and the complementary DNA strand as a template. In the LIC protocol, only dGTP is included in the reaction, causing the 3'→5'-exonuclease and 5'→3'-polymerase activities to equilibrate at the first occurrence of cytosine in the complementary strand. After annealing, the LIC vector and insert are transformed into competentE. colicells without the use of T4 DNA ligase. Covalent bond formation at the vector-insert junctions occurs within the cell to yield circular plasmid.FeaturesThe system consists of four kits based on the pLATE series of bacterial expression vectors:•aLICator™ LIC Cloning and Expression Kit 1- pLATE11 vector, untagged protein expression.•aLICator™ LIC Cloning and Expression Kit 2 (N-terminal His-tag/EK)—pLATE51 vector, N-terminal His-tag protein expression.•aLICator™ LIC Cloning and Expression Kit 3 (C-terminal His-tag)—pLATE31 vector, C-terminal His-tag protein expression.•aLICator™ LIC Cloning and Expression Kit 4 (N-terminal His-tag/WQ)—pLATE 52 vector, N-terminal His-tag protein expression, WELQut cleavage.•aLICator™ LIC Cloning and Expression Set 1 (All-in-One/EK)—pLATE11, pLATE51 and pLATE31 vectors, choice of untagged, N- or C-terminal His-tag protein expression.•aLICator™ LIC Cloning and Expression Set 2 (All-in-One/WQ)—pLATE11, pLATE52, and pLATE31 vectors, choice of untagged, N- or C-terminal His tag protein expression, WELQut cleavage.For proteins with a known preference for either the N- or C-terminal 6xHis-tag position, using the appropriate N- or C-terminal kit is recommended. When the protein structure and features are not well known, it is recommended to clone into all three vectors and determine the most compatible vector for further research.Related ProductsaLICator LIC Cloning and Expression Kit 2 (N-terminal His-tag/EK)aLICator LIC Cloning and Expression Kit 3 (C-terminal His-tag)aLICator LIC Cloning and Expression Set 1 (All-in-One/EK)aLICator LIC Cloning and Expression Kit 4 (N-terminal His-tag/WQ)aLICator LIC Cloning and Expression Set 2 (All-in-One/WQ)Generation of sticky ends on the gene of interest with T4 DNA polymerase and dGTP

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