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Ambion cells to ct kit

Manufactured by Thermo Fisher Scientific
Sourced in United States

The Ambion Cells-to-CT kit is a laboratory product designed for the rapid extraction and preparation of RNA from small cell samples. The kit provides a streamlined workflow for isolating RNA directly from cells, without the need for prior RNA purification.

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5 protocols using ambion cells to ct kit

1

Quantification of Viral RNA Levels

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Cells were seeded on 96-well plates (Greiner Bio-One) and incubated overnight before being infected by designated viruses with the indicated multiplicity of infection (MOI). At designated time points, cell lysates were harvested using the Ambion Cells-to-CT kit (Thermo Fisher) according the manufacturer’s protocol. After reverse transcription (RT) reaction, quantitative PCR (qPCR) was performed. Viral RNA levels were normalized to 18S RNA levels.
The following primers (5’−3’ orientation) were used for the qPCR:
18S-Fwd: AGAAACGGCTACCACATCCA
18S-Rev: CACCAGACTTGCCCTCCA
CV-A10-Fwd: CACTCAACCGGTTTTGGATT
CV-A10-Rev: TAGTTGTGCCACTCGGTCAC
EV-A71-Fwd40 (link): CCCTGAATGCGGCTAATCC
EV-A71-Rev40 (link): ATTGTCACCATAAGCAGCCA
EV-D68-Fwd41 (link): GGTGTGAAGAGTCTATTGAGC
EV-D68-Rev41 (link): CACCCAAAGTAGTCGG
RV-A2-Fwd: ACCTGGCAGATGAGGCTAGA
RV-A2-Rev: TGTTTGGCTTCACACCCATA
RV-B14-Fwd: AGTTGGCCCTGTAACAATGG
RV-B14-Rev: TGCCCAGTTTTTGTTGCATA
RV-C15- Fwd: AATTCTCAGGTGCCATGGAG
RV-C15- Rev: GTTGGGTGATTGCTCATCCT
Note that the downward error bar in Figure 1d, panel d (SETD3KO, 48 hpi) was omitted because it would reach a negative value that is invalid on a logarithmic scale.
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2

Quantification of Viral RNA Levels

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Cells were seeded on 96-well plates (Greiner Bio-One) and incubated overnight before being infected by designated viruses with the indicated multiplicity of infection (MOI). At designated time points, cell lysates were harvested using the Ambion Cells-to-CT kit (Thermo Fisher) according the manufacturer’s protocol. After reverse transcription (RT) reaction, quantitative PCR (qPCR) was performed. Viral RNA levels were normalized to 18S RNA levels.
The following primers (5’−3’ orientation) were used for the qPCR:
18S-Fwd: AGAAACGGCTACCACATCCA
18S-Rev: CACCAGACTTGCCCTCCA
CV-A10-Fwd: CACTCAACCGGTTTTGGATT
CV-A10-Rev: TAGTTGTGCCACTCGGTCAC
EV-A71-Fwd40 (link): CCCTGAATGCGGCTAATCC
EV-A71-Rev40 (link): ATTGTCACCATAAGCAGCCA
EV-D68-Fwd41 (link): GGTGTGAAGAGTCTATTGAGC
EV-D68-Rev41 (link): CACCCAAAGTAGTCGG
RV-A2-Fwd: ACCTGGCAGATGAGGCTAGA
RV-A2-Rev: TGTTTGGCTTCACACCCATA
RV-B14-Fwd: AGTTGGCCCTGTAACAATGG
RV-B14-Rev: TGCCCAGTTTTTGTTGCATA
RV-C15- Fwd: AATTCTCAGGTGCCATGGAG
RV-C15- Rev: GTTGGGTGATTGCTCATCCT
Note that the downward error bar in Figure 1d, panel d (SETD3KO, 48 hpi) was omitted because it would reach a negative value that is invalid on a logarithmic scale.
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3

Viral RNA Quantification Assay

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Cells were plated in 96-well plates (in triplicates for each condition), infected with a moi of 0.1 pfu/cell and treated with 8 μM NGI-1 for HEK293FT cells and 4 μM NGI-1 for HAP1 cells. RNA was harvested using the Ambion Cells-to-CT kit (ThermoFisher Scientific) at 48 hours post infection for flaviviruses, 24 hours for CHIKV and VEEV, and 16 hours for poliovirus. After RT reaction quantitative PCR was performed, where viral RNA levels were normalized to 18S RNA levels.
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4

Quantifying Cardiac Marker Expression in iPSC-CMs

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RNA from iPS cell derived cardiomyocytes was isolated using the Ambion Cells-to-Ct Kit (Life Technologies) according to the manufacturer. Cardiomyocytes were dissociated as described above. To quantify the expression of pan-cardiac marker cardiac troponin T (cTnT) and ventricular specific marker myosin light chain 2 (MYL2) during cardiac differentiation, quantitative polymerase chain reaction (QPCR) was performed using pre-designed TaqMan assays (S1 Table). QPCR reagents were assembled in 384-well plates using 10 μL Taqman Gene Expression Mastermix, 5 μL of nuclease free water, 1 μL of the Taqman Gene Expression Assay of choice and 4 μL of cDNA. The PCRs were run on a ViiA7 real time instrument (Life Technologies) using the following program: 2 minutes at 50°C, 10 minutes at 95°C, 40 cycles of 95°C for 15 seconds and 1 minute at 60°C. Relative gene expression was calculated with the ΔΔCt method normalizing target gene expression to B2M [24 (link)].
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5

RNA Extraction and qRT-PCR Analysis Protocol

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The Ambion Cells-to-CT Kit (Life Technologies, Frederick, MD, USA) was used to extract RNA and reverse transcribe RNA to complementary DNA for qRT-PCR without having to purify RNA prior to amplification as per manufacturer’s instructions. qRT-PCR experiments were conducted using a CFX384 Touch Real-Time PCR Detection System (Bio-rad, Hercules, CA, USA) and TaqMan Universal PCR Master Mix (Life Technologies, Frederick, MD, USA). The housekeeping genes GAPDH and β-actin were used for ΔΔCt calculations and relative expression was calculated using Taqman primer/probe sets (Life Technologies, Frederick, MD, USA).
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