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6 protocols using pdsred monomer f

1

Transient Transfection of HEK293 and PC12 Cells

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HEK293 cells were maintained in Dulbecco’s modified Eagle’s medium (DMEM) supplemented with 100 unit ml–1 penicillin and 100 µg ml–1 streptomycin and 10% FBS (Sigma) at 37 °C in a humidified atmosphere of 95% air and 5% CO2. HEK293 cells were transfected with plasmids (WT mGlu1, the mGlu1 mutants, or the control vector) using SuperFect transfection reagent (Qiagen) or Viafect (Promega) according to the manufacturer’s instruction. The cells were co-transfected with pEGFP-F (Clontech), pDsRed monomer-F (Clontech), or piRFP670-N1 (ref. 62 (link)) as the transfection marker. After transfection, the cells were cultured in DMEM supplemented with 10% dialyzed FBS (Gibco) instead of 10% FBS to decrease cytotoxicty. After 36–48 h incubation, the transfected HEK293 cells were utilized for experiments. piRFP670-N1 is a gift from Vladislav Verkhusha (Addgene plasmid # 45457).
PC12 cells were maintained in DMEM supplemented with 100 unit ml–1 penicillin and 100 µg ml–1 streptomycin and 10% horse serum (Gibco) at 37 °C in a humidified atmosphere of 95% air and 5% CO2.
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2

Trpc6-HA M131T Protein Expression

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To determine the ability of pCDNA3 Trpc6-HAM131T to express the proteins we performed Western blot and immunofluorescence analysis as described before [21 ]. Briefly, for Western blot HEK293 cells were transfected with the plasmid containing the Trpc6-HA M131T cDNA and lysed 16 hours after transfection. Expression was confirmed with rat anti-HA antibody 1/5000 (clone 3F10, Roche). To determine subcellular localization, HeLa cells were co-transfected with the same construct and method. Plasmid pDsRed Monomer-F (Clontech) was also transfected for membrane co-localization analysis. The same rat anti-HA antibody(1/500) was used for detecting Trpc6 M131T membrane signal. Mounted slides were analyzed with confocal Zeiss LSM710 microscope and its respective software.
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3

Culturing and Transfecting Cell Lines for Receptor Imaging

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HEK293T, HEK293, and CHO
cells were maintained in Dulbecco’s
modified Eagle’s medium (DMEM, Sigma-Aldrich) for HEK293T and
HEK293 cells or DMEM-F12 (Sigma-Aldrich) for CHO cells supplemented
with 10% fetal bovine serum (FBS) (Gibco), 100 unit/mL penicillin,
100 μg/mL streptomycin, and 0.25 μg/mL amphotericin B
(Gibco) at 37 °C in a humidified atmosphere of 95% air and 5%
CO2. For β2ARs, HEK293T and HEK293 cells
were transiently transfected with plasmids (WT β2ARs, the β2AR mutants, or the control vector) using
Lipofectamine2000 (Invitrogen) and Superfect transfection reagent
(Qiagen), respectively, in DMEM supplemented with 10% FBS according
to the manufacture’s instruction. For M1R, CHO cells were transiently
transfected with plasmids (WT M1R, the M1R mutants, or the control
vector) using Lipofectamine2000 transfection reagent in DMEM-F12 supplemented
with 10% FBS according to the manufacture’s instruction. The
cells were co-transfected with pEGFP-F (Clontech), pmCherry-F,36 (link) or pDsRed monomer-F (Clontech) as a transfection
marker. For Ca2+ imaging, the cells were grown for 24–36
h, seeded on glass coverslips (Matsunami) coated with poly-l-lysine solution (Sigma-Aldrich), and subjected to Ca2+ imaging 4–10 h after seeding.
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4

Transient Transfection of HEK293 Cells

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HEK293 cells were maintained in Dulbecco’s modified Eagle’s medium (DMEM) with 100 unit ml−1 penicillin and 100 μg ml−1 streptomycin and 10% FBS (Sigma) at 37°C in a humidified atmosphere of 95% air and 5% CO2. HEK293 cells were transiently transfected with plasmids encoding WT mGlu 1, the mGlu1 mutants, or the control vector using Viafect (Promega) following the manufacture’s instruction. The cells were co-transfected with pEGFP-F (Clontech), pDsRed monomer-F (Clontech), or iRFP-670 (kindly gifted from Prof. Verkhusha) as transfection markers. For the culture of transfected cells, DMEM supplemented with 10% dialyzed FBS (Sigma) was used to decrease the cytotoxicity. The medium was exchanged 4 h after the transfection, and the cells were used for the experiments after 24–48 h.
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5

Trpc6-HA M131T Protein Expression

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To determine the ability of pCDNA3 Trpc6-HAM131T to express the proteins we performed Western blot and immunofluorescence analysis as described before [21 ]. Briefly, for Western blot HEK293 cells were transfected with the plasmid containing the Trpc6-HA M131T cDNA and lysed 16 hours after transfection. Expression was confirmed with rat anti-HA antibody 1/5000 (clone 3F10, Roche). To determine subcellular localization, HeLa cells were co-transfected with the same construct and method. Plasmid pDsRed Monomer-F (Clontech) was also transfected for membrane co-localization analysis. The same rat anti-HA antibody(1/500) was used for detecting Trpc6 M131T membrane signal. Mounted slides were analyzed with confocal Zeiss LSM710 microscope and its respective software.
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6

Transfection and Culture of HEK293 and PC12 Cells

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HEK293 cells were maintained in Dulbecco's modified Eagle's medium (DMEM) supplemented with 100 unit ml -1 penicillin and 100 µg ml -1 streptomycin and 10% FBS (Sigma) at 37 °C in a humidified atmosphere of 95% air and 5% CO2. HEK293 cells were transfected with plasmids (WT mGlu1, the mGlu1 mutants, or the control vector) using SuperFect transfection reagent (Qiagen) or Viafect (promega) according to the manufacturer's instruction. The cells were co-transfected with pEGFP-F (Clontech), pDsRed monomer-F (Clontech), or iRFP670 (kindly gifted from Prof. Verkhusha) as the transfection marker. After transfection, the cells were cultured in DMEM supplemented with 10% dialyzed FBS (Gibco) instead of 10% FBS to decrease cytotoxicty. After 36-48 h incubation, the transfected HEK293 cells were utilized for experiments. PC12 cells were maintained in DMEM supplemented with 100 unit ml -1 penicillin and 100 µg ml -1 streptomycin and 10% horse serum (Gibco) at 37 °C in a humidified atmosphere of 95% air and 5% CO2.
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