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Vic mgb probe

Manufactured by Thermo Fisher Scientific
Sourced in Germany

The VIC/MGB probe is a fluorescent probe used in real-time PCR (polymerase chain reaction) assays. It is designed to detect and quantify specific DNA or RNA sequences. The probe contains a fluorescent reporter dye (VIC) and a non-fluorescent quencher (MGB), which quenches the fluorescence of the reporter dye when the probe is intact. During the PCR amplification process, the probe binds to the target sequence and is cleaved, releasing the reporter dye and allowing it to emit fluorescence, which is detected by the real-time PCR instrument.

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5 protocols using vic mgb probe

1

Quantitative Gene Expression Analysis

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RNA isolation was performed using a RNeasy Plus Micro Kit (74034, Qiagen). High-Capacity RNA-to-cDNA Kit (4387406, ThermoFisher Scientific) was used for reverse transcription. TaqMan Fast Universal PCR Master Mix (4352042, ThermoFisher Scientific) and primers for Chat (Mm01221882_m1, FAM-MGB, Thermo Fisher Scientific) and Gapdh (4352339E, VIC/MGB probe, Thermo Fisher Scientific) were used to quantify target genes. Gene expression was measured by 7500 Real Time PCR system (Applied Biosystems) and target gene expression was normalized to Gapdh.
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2

Quantitative Gene Expression Analysis

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RNA isolation was performed using a RNeasy Plus Micro Kit (74034, Qiagen). High-Capacity RNA-to-cDNA Kit (4387406, ThermoFisher Scientific) was used for reverse transcription. TaqMan Fast Universal PCR Master Mix (4352042, ThermoFisher Scientific) and primers for Chat (Mm01221882_m1, FAM-MGB, Thermo Fisher Scientific) and Gapdh (4352339E, VIC/MGB probe, Thermo Fisher Scientific) were used to quantify target genes. Gene expression was measured by 7500 Real Time PCR system (Applied Biosystems) and target gene expression was normalized to Gapdh.
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3

Mitochondrial DNA Copy Number Quantification

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A relative copy number of the mitochondrial DNA (mtDNA) was calculated as the number of mtDNA molecules in relation to nDNA molecules by real-time qPCR expression analysis of 5 ng DNA for a mitochondria-encoded NADH dehydrogenase subunit 1 (Mt-nd1) and the nuclear-encoded single copy gene for lipoprotein lipase (Lpl), normalized to 18S rRNA. Primer sequences: Mt-nd1—forward: CTACAACCATTTGCAGACGC/–reverse: GGAACTCATAGACTTAATGC/probe: CCAATACGCCCTTTAACAACCTC; Lpl—forward: GGTTTGGATCCAGCTGGGCC/–reverse: GATTCCAATACTTCGACCAGG/probe: CTTTGAGTATGCAGAAGCCC; Eukaryotic 18S rRNA-endogenous control (VIC™/MGB-probe) (Thermo Fischer Scientific, Germany) [27 (link)].
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4

qRT-PCR Analysis of Folate Pathway Genes

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qRT-PCR was performed on a PRISM® 7900HT sequence detection system (Applied Biosystems, Foster City, CA, USA) using TaqMan® Universal PCR Master Mix (Applied Biosystems). Gene expression levels were normalized to those of β-actin (ACTB). The primers and TaqMan® probes were prepared using Assay-on-Demand gene-expression products (Applied Biosystems) and Human ACTB Endogenous Control (VIC / MGB Probe, Applied Biosystems). Probe IDs were Hs00195560_m1 for MTHFR, Hs01068263_m1 for MTHFD1, Hs00894582_m1 for GART, Hs01124179_g1 for FOLR1, Hs00758822_s1 for DHFR, and Hs00426586_m1 for TYMS.
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5

Gene Expression Analysis of Corneal Cells

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Total RNA was extracted and processed, and qRT-PCR was performed, as previously described (Karamichos et al., 2011b (link)). Briefly, RNA was annealed with oligo dt and random hexamer primers, and first strand synthesis was carried out with MMLV reverse transcriptase (Life technologies; Grand Island, NY). Negative controls were performed without reverse transcriptase. The TaqMan® Gene Expression Master Mix and cDNA template produced were optimized for each assay. The cDNA template was incubated for an initial 2min at 50°C and 10min at 95°C, followed by 40–50 amplification cycles of 95°C for 15s and 60°C for 1min. qRT-PCR was performed using an ABI 7300 (Applied Biosystems; Foster City, CA). Target genes included Col3A1, Col5A1, Keratocan, Perlecan, Decorin, Lumican, Lysyl oxidase, alpha-smooth muscle actin (SMA), and Eukaryotic 18S rRNA Endogenous Control (VIC/MGB Probe: Primer Limited Applied Biosystems; Grand Island, NY). Results were calculated using the ΔΔCt method (Livak and Schmittgen, 2001 (link)), using 18S rRNA as the endogenous control. Values were plotted as the mean ± standard error (SEM).
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