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Pmetluc2 control

Manufactured by Takara Bio
Sourced in Japan

The PMetLuc2-Control is a control plasmid designed for use with the PMetLuc2 reporter system. It expresses the Metridia luciferase (MetLuc) reporter gene under the control of a constitutive promoter, providing a positive control for MetLuc expression and assays.

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4 protocols using pmetluc2 control

1

Generating Aptamer-Functionalized Plasmids

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The plasmids pmCherry-C1 and pMetLuc2-Control were purchased from Takara Clontech (Kyoto, Japan). pmCherry-PAL and pMetLuc plasmids with aptamers in the 5’UTR were generated using the In-Fusion HD EcoDry Cloning Kit (Takara Clontech, Kyoto, Japan). Previous PCR amplification used the primer pair:

5’- CTCAAGCTTCGAATTCATGAAGGTGAACCGGCCC 3’

5’- TAGATCCGGTGGATCCCTACGACGCCAGCTGCTCCAA 3’

pmCherry-C1 was linearized using EcoRI and BamHI. Primers for the aptamer inserts were:
Primers for the linearized pMetLuc2-Control plasmid were:
HeLa cells (CLS Cell Lines Service GmbH, Eppelheim, Germany) were cultured in DMEM medium (high glucose, GlutaMAXTM, Thermo Fisher Scientific, Darmstadt, Germany) supplemented with 10% fetal calf serum (FCS, Sigma-Aldrich, St. Louis, Missouri, USA) at 37ºC and 5% CO2, and were passaged every 2 to 3 days.
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2

Plasmid-based miRNA and shRNA cloning

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All oligonucleotides were purchased from Ella Biotech, Planegg, Germany. Plasmid pIRESneo-FLAG/HA Ago2 was kindly provided by Thomas Tuschl. The plasmids pmCherry-C1, pMetLuc2-Control and peGFP-N1 were purchased from Takara Clontech. All miR and shRNAs described herein were cloned in the pSilencer 2.0-U6 plasmid backbone using restriction cloning. Corresponding miR and shRNA sequences are listed in Supplementary Table 1. The identity of all constructs was confirmed by Sanger DNA sequencing (Eurofins).
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3

Generating PXR mutant expression plasmids

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Full-length human PXR [76 (link)] and CYP3A4 enhancer/promoter reporter gene plasmid pGL4-CYP3A4 (7830Δ7208-364) [77 (link)] have been described previously. Metridia luciferase expression plasmid pMetLuc2control was obtained from Takara-Clontech (Mountain View, CA, USA). Site-directed mutagenesis of the full-length PXR expression plasmid with suitable oligonucleotides designed with NEBaseChanger using Q5 Site-Directed Mutagenesis kit (New England Biolabs, Ipswich, MA, USA) was utilized to generate PXR mutants Q285A, Y306A, S247A, H407A, W223A, F281A, W299A, and F429A. The mutations were confirmed by sequencing. Plasmids were purified using PureYield Plasmid Midiprep System (Promega, Madison, WI, USA).
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4

Generating Aptamer-Functionalized Plasmids

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The plasmids pmCherry-C1 and pMetLuc2-Control were purchased from Takara Clontech (Kyoto, Japan). pmCherry-PAL and pMetLuc plasmids with aptamers in the 5’UTR were generated using the In-Fusion HD EcoDry Cloning Kit (Takara Clontech, Kyoto, Japan). Previous PCR amplification used the primer pair:

5’- CTCAAGCTTCGAATTCATGAAGGTGAACCGGCCC 3’

5’- TAGATCCGGTGGATCCCTACGACGCCAGCTGCTCCAA 3’

pmCherry-C1 was linearized using EcoRI and BamHI. Primers for the aptamer inserts were:
Primers for the linearized pMetLuc2-Control plasmid were:
HeLa cells (CLS Cell Lines Service GmbH, Eppelheim, Germany) were cultured in DMEM medium (high glucose, GlutaMAXTM, Thermo Fisher Scientific, Darmstadt, Germany) supplemented with 10% fetal calf serum (FCS, Sigma-Aldrich, St. Louis, Missouri, USA) at 37ºC and 5% CO2, and were passaged every 2 to 3 days.
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