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商品详细Qiagen/miRCURY LNA miRNA PCR Assays/339306
Qiagen/miRCURY LNA miRNA PCR Assays/339306
Qiagen/miRCURY LNA miRNA PCR Assays/339306
商品编号: 339306
品牌: Qiagen
市场价: ¥2400.00
美元价: 1440.00
产地: 美国(厂家直采)
公司:
产品分类: 多肽合成
公司分类: peptide
联系Q Q: 3392242852
电话号码: 4000-520-616
电子邮箱: info@ebiomall.com
商品介绍

miRCURY LNA miRNA PCR Assays

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For extremely sensitive and specific miRNA quantification using LNA-optimized, SYBR® Green-based miRNA PCR
  • Unmatched sensitivity allows miRNA quantification from just 1 pg total RNA
  • Great for samples with low RNA yield, such as serum/plasma, FFPE sections and LCM samples
  • High specificity discriminates closely related miRNAs and mature miRNA from precursors
  • Fast and simple two-step protocol takes less than 3 hours
  • Full miRBase coverage enables miRNA profiling from any organism

miRCURY LNA miRNA PCR Assays are individual miRNA PCR primer sets that enable extremely sensitive and specific miRNA quantification with the miRCURY LNA miRNA PCR System. Both forward and reverse PCR amplification primers are miRNA-specific and are optimized with LNA technology. Assays are available in tube or plate format with 200 reactions per tube or well.

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Cat No./ID:339306
miRCURY LNA miRNA PCR Assay
$120.00
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Contains forward and reverse primers for 200 reactions; for SYBR® Green-based detection

miRCURY LNA miRNA PCR Assays are intended for molecular biology applications. These products are not intended for the diagnosis, prevention, or treatment of a disease.

Product Details

9
Specificity test alongside competitor probe-based miRNA qPCR system.
Specificity was assessed using 8 pools each containing at least 80 different synthetic miRNAs. Closely related miRNAs are placed in different pools. This example shows results from the hsa-miR-1 assay. The miRCURY LNA miRNA PCR System performs perfectly with a high signal in pool 1, which contains the hsa-miR-1 synthetic miRNA target, and only a borderline signal in pool 7, which contains the most closely related miRNA (hsa-miR-206). The competitor platform uses ligation-based cDNA synthesis and only one miRNA-specific probe. Competitor T shows a lack of specificity. The highest signal for Competitor T is obtained with pool 1. However, non-specific false-positive signals are obtained from all other pools in the absence of hsa-miR-1 template, within a Cq range that would be interpreted as real signals.
9
Accurate quantitation from down to 1 pg total RNA starting material.
Data from serial dilutions of human AM6000 total RNA are shown. All miRNA assays exhibit linear readout with correlation coefficients R2 > 0.99.
9
miRCURY LNA miRNA PCR System at a glance.
The miRCURY LNA miRNA PCR System uses one single cDNA synthesis reaction for all amplifications, reducing pipetting and saving time and sample. Two LNA-enhanced miRNA-specific qPCR primers enable highly specific and sensitive amplification and single nucleotide discrimination. The fast and easy workflow takes only 3 hours with minimal hands-on steps.
9
Serial dilution of hsa-miR-181a.
A 10-fold serial dilution (ranging from 1 x 108 to 10 copies) of cDNA template made from synthetic hsa-miR-181a was used for real-time PCR amplification. The standard curve shows excellent linear correlation (R2 = 0.998) between the decreasing cycle numbers and the logarithm of the miRNA copy number. The assay can detect as few as 10 miRNA copies in the PCR reaction and has a dynamic range of 8 logs. Efficiency calculated from the standard curve = 1.94. The dilution series was performed in a background of MS2 bacteriophage total RNA.
9
Expression levels of reference genes in different human tissues.
9
LNA-enhanced primers result in greatly increased sensitivity compared to DNA primers.
miRCURY LNA miRNA PCR Primers and commercially available DNA-based primer sets were used for real-time PCR amplification of serially diluted cDNA (106–10 copies). LNA-based primer sets showed superior sensitivity in all cases, especially for AT-rich sequences, such as hsa-miR-155 (61% AT) and hsa-miR-1 (73% AT).
9
Detection of differential expression of miRNAs in LCM specimens from tissue FFPE sections.
Areas between 8000 and 13000 μm2 of normal tissue, tumor tissue and tumor stroma were isolated by laser dissection from FFPE sections of human colon (A). Total RNA was extracted and miRNA levels were quantified using miRCURY LNA miRNA PCR (B). Normalized data are shown on a log2 scale as relative expression compared to normal tissue. hsa-miR-103 and hsa-let-7a were used as reference genes.
9
Single nucleotide discrimination.
The LNA-enhanced, miRNA-specific primers facilitate the design of miRNA qPCR assays that discriminate between closely related miRNA sequences. The table shows the percent signal obtained from target with a single nucleotide mismatch compared to the signal from the perfectly matched target (set to 100%). Single nucleotide discrimination is possible at various positions in the miRNA sequence.
9
Specific and sensitive amplification of miRNA.
Amplification curves (A) and melting curves (B) from the hsa-miR-145 miRCURY LNA miRNA PCR Assay performed on a serial dilution of human colon total RNA (100 ng to 1 pg), performed in triplicate. The amplification curves demonstrate sensitive and reproducible detection down to 1 pg of total RNA input with no background signal. The melting curves show only one major Tm peak corresponding to a well-defined melting temperatureof the amplicon, demonstrating specific amplification of hsa-miR-145.
9
Differences in miRNA expression between serum samples.
Normalized expression levels of eight different miRNAs in two serum samples are shown. Total RNA purified from the equivalent of 8 µl serum was used in the RT reaction. hsa-let-7a and hsa-miR-103 were used as reference genes for normalization.
9
Schematic outline of the miRCURY LNA miRNA PCR System.
A poly(A) tail is added to the mature miRNA template (step 1A). cDNA is synthesized using a Poly(T) primer with a 3’ degenerate anchor and a 5’ universal tag (step 1B). The cDNA template is then amplified using two miRNA-specific and LNA-enhanced forward and reverse primers (step 2A). SYBR Green is used for detection (step 2B).
Performance
Unmatched sensitivity
The exceptional sensitivity of miRCURY LNA miRNA PCR Assays is achieved by combininguniversal reverse transcription with LNA-enhanced and Tm-normalized primers. This combination enables accurate and reliable quantification of individual miRNAs from as little as 1 pg of total RNA input in the initial first-strand cDNA synthesis (see figure Accurate quantitation from down to 1 pg total RNA starting material).Compared with other miRNA real-time PCR systems that use either stem-loop or standard DNA primers, the LNA-enhanced primers offer significantly increased sensitivity, especially for AT-rich miRNAs (see figure LNA-enhanced primers result in greatly increased sensitivity compared to DNA primers).The low sample requirements also enable miRNA quantitation using total RNA purified from difficult samples such as LCM samples and serum/plasma (see figuresDetection of differential expression of miRNAs in LCM specimens from FFPE tissue sections and Differences in miRNA expression between serum samples).
Fully validated and optimized
All wet-lab validated miRCURY LNA miRNA PCR Assays have been optimized to be as sensitive as possible. Over 80% of assays detect at least 5 miRNA copies in the PCR reaction (see figure Serial dilution of hsa-miR-181a). The primer sets have also been validated for specific amplification of the target and for minimal background signal (see figure Specific and sensitive amplification of miRNA).
The only platform with perfect specificity
The miRCURY LNA miRNA PCR Assays are the only miRNA quantification platform with absolute specificity (see the miRQC study published in Nature Methods) and out-performed another probe-based miRNA qPCR platform in specificity tests (see figure Specificity test with probe-based miRNA qPCR system). Perfect specificity eliminates false positives and ensures only robust andreliable miRNA signals.
Superior discrimination
The incorporation of LNA in both the forward and reverse PCR amplification primersmakes it possible to design assays that can distinguish between miRNA sequences that differ by only one nucleotide (see figure Single-nucleotide discrimination). In addition, the assays can discriminate between mature miRNA sequences and precursor miRNA.
Fast, easy and reproducible
The easy-to-follow, 3-hour protocol saves you bothtime and effort in the laboratory. By using the same RT reaction as the template in all subsequent PCR reactions, the procedure is greatly simplified compared with systems that require miRNA-specific first-strand synthesis. The number of pipetting steps is reduced to a minimum, and technical variation is minimized. This makes it possible to achieve extremely high reproducibility from day-to-day and even site-to-site.miRCURY LNA miRNA PCR Assays have been optimized for use with the miRCURY LNA RT Kit and the miRCURY LNA SYBR Green PCR Kit. Use of other reagents will affect the quality of the results.
Principle
A unique system for miRNA profiling
miRCURY LNA miRNA PCR Assays offer the best combination of performance and ease-of-use available on the microRNA real-time PCR market by combining universal RT with LNA PCR amplification (see figure Schematic outline of the miRCURY LNA miRNA PCR System).Universal RT makes it possible to use one first-strand cDNA synthesis reactionas thetemplate for multiple miRNA real-time PCR assays. This saves precious samples, reduces technical variation and saves time in the laboratory.Plus, both the forward and reverse PCR amplification primers are miRNA specific and optimized with LNA. This provides 1) exceptional sensitivity and extremely low background, enabling accurate quantitation of very low miRNA levels and 2) highly specific assays that allow discrimination between closely related miRNA sequences.
Coverage
Over 20,000 assays are available covering all organisms in miRBase 20. Over 1,400 assays are fully wet-lab validated for sensitivity, specificity, efficiency and background on both synthetic as well as different biological samples. The remaining assays are in silico-validated using a comprehensive design algorithm that ensures high-quality, species-specific, LNA-enhanced assays with optimal sensitivity and specificity within each organism. This means that several different assays may target the same sequence. Ultimately, the assay for each species is selected based on the genetic background of the organism. If you are working with novel miRNAs,such asfrom an NGS experiment, custom-designed LNA miRNA primer sets for any miRNA are also available.
​Reference gene assays for normalization
Nine reference gene primer sets are available, enabling high-quality data normalization and generation of reliable data from many different sample types (see table below). These control primer sets target endogenous, small non-coding RNAs that are constitutively and relatively stably expressed across different human tissues (see figure Expression levels of reference genes in different human tissues). The control reference genes cover a large range of Cq values, offering the possibility to accurately and reliably normalize across a range of miRNA expression levels.The control primer sets have been validated as reference genes for the miRCURY LNAmiRNA PCR System and work optimally with the miRCURY LNA RT Kit and the miRCURY LNA SYBR Green PCR Kits.It is very important to always confirm the consistent and unvarying expression of a gene in all tissues and under all treatments of an experiment before choosing it as the reference. We recommend that you test a number of reference genes and use software such as GeNorm and NormFinder (part of the GenEx software) to choose and validate reference genes.​
List of available reference gene assays
Product name Target organism Alternative names NCBI reference
Control primer set, SNORD38B (hsa) hsa U38B; RNU38B NR_001457
Control primer set, SNORD44 (hsa) hsa U44; RNU44 NR_002750
Control primer set, SNORD48 (hsa) hsa U48; RNU48 NR_002745
Control primer set, SNORD49A (hsa) hsa U49; U49A; RNU49 NR_002744
Control primer set, SNORA66 (hsa) hsa U66; RNU66 NR_002444
Control primer set, 5S rRNA (hsa) hsa, mmu V00589
Control primer set, U6 snRNA (hsa, mmu) hsa, mmu, rno U6 X59362
Control primer set, RNU5G snRNA (mmu, hsa) mmu, hsa, rno Rnu5a; U5a; Rnu5g NR_002852
Control primer set, RNU1A1 (mmu, hsa) mmu, hsa, rno Rnu1a-1; Rnu1a1 NR_004411
Control primer set, SNORD65 (mmu) mmu U65; RNU65 NR_028541
Control primer set, SNORD68 (mmu) mmu U68; RNU68 NR_028128
Control primer set, SNORD110 (mmu) mmu U110; RNU110 NR_028547
Procedure
The miRCURY LNA miRNA PCR Assay system is an miRNA-specific, LNA-based system designed for sensitive and accurate detection of miRNA by quantitative real-time PCR using SYBR Green. The first step of the procedure is universal reversetranscription, followed by real-time PCR amplification with LNA-enhanced primers(see figure miRCURY LNA miRNA PCR System at a glance).
Applications
miRCURY LNA miRNA PCR Assays are used as part of the miRCURY LNA miRNA PCR System for:
  • Mature miRNA quantification
  • snoRNA detection

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miRCURY LNA miRNA PCR System Product Profile
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miRCURY LNA miRNA PCR System – interactive product profile
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Explore the RNA Universe!
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Quick-Start Protocols (2)
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miRCURY LNA miRNA PCR Assays and PCR Panels Quick-Start Protocol
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miRCURY LNA RT Kit Quick-Start Protocol
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miRCURY LNA miRNA PCR –Exosomes, Serum/Plasma and Other Biofluid Samples Handbook
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品牌介绍
QIAGEN是一家专业化致力于生物分子样品制备解决方案的跨国经营企业,总部位于德国。1984年,QIAGEN在德国成立,1996年在美国纽约纳斯达克上市。QIAGEN拥有超过1000项专利和认可证明,在18个国家设立了分公司,代理商服务国超过40个,在全球有超过400000的用户。QIAGEN提供的产品超过500类,包括各种试剂,耗材和自动化纯化工作站。这些产品用于样品采集,稳定,核酸或蛋白的分离,纯化和检测中,不仅广泛的应用于科研领域的各个方面,在生物技术,制药,法医研究,食品安全检测,畜牧业和分子诊断领域也得到了广泛的应用。QIAGEN产品的卓越品质和在应用中的出色表现使得其成为样品处理中标准的代名词。