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Pcpgfree lacz

Manufactured by InvivoGen
Sourced in United States

The PCpGfree-LacZ is a plasmid that contains the LacZ gene, which encodes the enzyme β-galactosidase. This plasmid lacks CpG motifs, making it suitable for studies involving gene expression in various cell types.

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5 protocols using pcpgfree lacz

1

Plasmid Construction and Labeling

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pCMV-Luciferase (pCMV-Luc) was constructed previously (Kawakami et al., 2000 (link)). pZsGreen1-N1 and pDNAs of Mercury Pathway Profiling Luciferase system 1 (pTAL-Luc, pAP-1-Luc, and pNF-κB-Luc) were purchased from Clontech (Takara Bio Inc., Shiga, Japan). pCpG-free-LacZ and pCpG-free-Lucia were purchased from Invivogen (San Diego, CA). pCMV-Luc, pZsGreen1-N1, and pDNAs of Mercury Pathway Profiling Luciferase system 1 were amplified and purified as described previously (Kawakami et al., 2000 (link)). For amplification of the pCpG-free-plasmid (pCpG-free-LacZ and pCpG-free-Lucia), the E. coli competent strain GT115 (Invivogen) was used. Cy5-labeled pCMV-Luc and pZsGreen1-N1 were prepared using a Label IT Nucleic Acid Labeling Kit (Mirus Co., Madison, WI) according to the manufacturer’s protocol.
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2

Lentiviral LacZ Expression Cassette

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The LacZ expression cassette consists of the EF1-α core promoter, the mouse cytomegalovirus enhancer, a synthetic intron, and the LacZ cDNA from the pCpGfree-LacZ (Invivogen, San Diego, CA, USA), and a SV40 late polyadenylation signal from pTarget (Promega, Madison, WI, USA).
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3

Construction and Purification of Plasmids

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pCMV-Luc was constructed as previously described [20 (link)]. The hHGF expression vector without any CpG, pCpGfree-hHGF was custom-made by subcloning the CpG-depleted hHGF gene into the pCpGfree-mcs vector (InvivoGen, San Diego, CA, USA). pCMV-Luc and pZsGreen1-N1 (Takara Bio Inc., Shiga, Japan) were amplified in the Escherichia coli strain DH5α. pCpGfree-LacZ (InvivoGen, San Diego, CA, USA) and pCpGfree-hHGF were amplified in the E. coli strain GT115. Endofree Plasmid Giga Kit (QIAGEN GmbH, Hilden, Germany) was used to purified pDNA.
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4

Cloning and Labeling Luciferase Plasmids

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pCMV-Luc, which contains a cytomegalovirus promoter and expresses firefly luciferase, was constructed as previously reported [18 (link)]. pCpG-free-LacZ was purchased from Invivogen (San Diego, CA, USA) and pZsGreen1-N1 was purchased from Clontech (Takara Bio Inc., Shiga, Japan). TMRhodamine-labeled pCMV-Luc was prepared using the Label IT-TM-Rhodamine Labeling Kit (Mirus Corp., Madison, WI, USA), according to the manufacturer’s instructions.
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5

Lentiviral LacZ Expression Cassette

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The LacZ expression cassette consists of the EF1-α core promoter, the mouse cytomegalovirus enhancer, a synthetic intron, and the LacZ cDNA from the pCpGfree-LacZ (Invivogen, San Diego, CA, USA), and a SV40 late polyadenylation signal from pTarget (Promega, Madison, WI, USA).
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