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QuantiMir™ RNU43 Reference Assays

Extend your QuantiMir Kit with additional reference assays for endogenous RNU43 snoRNA, suitable for human, mouse, and rat

  • Ready-to-use reference assay
  • Designed for use with the QuantiMir Kit
  • Suitable for high-throughput screening of clinical samples
Catalog Number
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QuantiMir™ RNU43 Reference Assays
50 Assays
$ 95


Supporting your studies with ready-to-go reference assays

QuantiMir™ is SBI’s simple and robust technology for profiling miRNAs. For labs using our QuantiMir Kit who need additional reference assays for endogenous RNU43 snoRNA—suitable for human, mouse, and rat—we offer this stand-alone set of 50 assays.

Visit the QuantiMir page to order the complete kit.

See all of our reference assays:

Catalog #Amplified small RNASpecies compatibility
RA420A-hU6Human U6Human
RA420A-miR-16miR-16Human, Mouse
RA420A-mU6Mouse U6Mouse
RA420A-RNU1RNU1 (U1)Human, Mouse, Rat, Monkey
RA420A-RNU43RNU43Human, Mouse, Rat
RA420A-rU6Rat U6Rat

How the QuantiMir Kit Works

The QuantiMir Kit enables robust miRNA quantitation through a simple and efficient workflow

Highly efficient poly-A tailing and reverse transcription in a single reaction tube provides uniform cDNA synthesis of miRNAs. The optimized reaction conditions and buffer components maximize cDNA yield when starting with several micrograms down to picograms of input total RNA. The universal 3′ tag sequence incorporated during reverse transcription enables easily scalable and accurate miRNA expression analysis by qPCR—profile thousands of different miRNAs from a single reverse transcription reaction.

  • Tag all small RNAs with a poly-A tail
  • Anneal an oligo-dT adaptor
  • Reverse transcribe to create first-strand cDNA

The result is a cDNA pool of anchor-tailed miRNAs that are ready for qPCR.

Create custom miRNA assays

To design your own miRNA assays, simply synthesize an oligo using the sequence of the mature miRNA you’d like to profile as the forward primer in your miRNA qPCR assay, and use with the universal reverse primer included in the QuantiMir Kit.

Supporting Data for the QuantiMir Kit

Converting miRNA into cDNA for accurate qPCR profiling and quantitation

The QuantiMir Kit is sensitive

Figure 1. The QuantiMir Kit is highly sensitive and enables measurement across a wide dynamic range. (A) Starting with total, Trizol-extracted RNA or fractionated small RNA samples you can measure from several micrograms down to picograms of input RNA with excellent accuracy. (B) You can also detect differential miRNA expression across a dynamic range of at least 6 logs.

The QuantiMir Kit is accurate

Figure 2. The QuantiMir Kit is accurate. We used the QuantiMir Kit to synthesize first strand cDNAs from 18 different human tissues: adipose, bladder, brain, cervix, colon, esophagus, heart, kidney, liver, lung, ovary, placenta, prostate, skeletal muscle, small intestine, spleen, testes, and thymus. The cDNAs were balanced to yield equal Ct values for the U6 snRNA normalizing transcript (bottom left plot, green bars). Real-time PCR results demonstrate that the normalizing snRNA is uniformly expressed across the 18 tissues examined. As expected, assays for miR-1 are show specific expression in heart and musculoskeletal tissues (top left plot, red bars) whereas assays for miR-122 show specific expression in the liver (top right plot, blue bar).

Use the QuantiMir Kit to profile miRNAs from cancerous and normal tissues

Figure 3. Use the QuantiMir Kit to profile miRNAs from cancerous and normal tissues. Example of quantitative miRNA profiling of nine miRNAs in five different normal and tumor-derived samples.

Measure both siRNA and mRNA knockdown in a single QuantiMir cDNA sample

Figure 4. Measure both siRNA and mRNA knockdown in a single QuantiMir cDNA sample. A time-course using anti-p53 shRNA-directed knockdown of the endogenous p53 mRNA transcript demonstrates how the QuantiMir Kit can be used to measure both p53 siRNA (orange bars) and p53 mRNA (blue line) via qPCR.


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