产品说明
DescriptionFormerly DNA Extraction Control 560.DNA Extraction Control not only enables users of a diagnostic qPCR assay to determine if there are inhibitors in the PCR assay, but also to validate the success of the extraction step, reducing the chance of obtaining a false negative result in the sample DNA.Product HighlightsSimple - streamlined protocol for straightforward validation of DNA extraction and determination of qPCR assay inhibitionSensitive - control assay identifies even small effects on DNA extraction and inhibition of amplificationOptimized - control DNA has a sequence with no known homology to any organism thereby avoiding detection of sample DNASpecific - probe-based assay designed specifically for real-time PCR assaysFlexible - ideal for use with a wide range of sample types, including inhibitor-rich samples like blood, urine and sputum samplesProduct DescriptionA common practice in qPCR is to add a known amount of spiked control DNA after DNA extraction, this monitors PCR inhibition but has no value as an extraction control. The ideal situation is to have the test sample and internal control undergo the same processing prior to qPCR. Meridian has developed the qPCR Extraction Control, which more closely mimics the test sample, as compared to spike controls. Genetic material from the test sample and the qPCR Extraction Control is simultaneously extracted by common extraction methods, with the extraction control being as sensitive to inhibition and extraction failure as the test sample.The qPCR Extraction Control cells are of a known concentration, containing the Internal Control DNA sequence. This sequence contains no known homology to any organism and, importantly, has minimal interference with detection of sample DNA. The qPCR Extraction Control cells are spiked into the lysis buffer with the target sample, prior to DNA extraction. Control Mix, which includes primers and probe, is then added to the reaction mix before amplification. Signal derived from the Internal Control DNA confirms the success of the extraction step. qPCR Extraction Control also monitors co-purification of PCR inhibitors that may cause biased or false amplification patterns.Request InfoApplicationsPathogen detectionCancer risk assessmentGene expression analysisCopy number variation (CNV) analysisGenotypingViral loading Fig. 1 Illustration of the extraction processDEC assesses effects of extraction as well as inhibition throughout the entire workflow. Fig 2 Minimal interference of DEC in sample detection.A/ β 2 Microglobulin (b2MG) was amplified in triplicate from human genomic DNA in singleplex (green) and in duplex with Internal Control (blue). B/ The Internal Control was amplified in singleplex (red) and in duplex with b2MG (blue). The Cts show no difference between singleplex (b2MG - green, Internal Control - red) and duplex (blue) reaction assays in both target gene and Internal Control. Fig. 3 PCR reaction inhibitionA/ A fragment of the β2MG gene was amplified from genomic DNA and B/ the internal control sequence from the DEC. Increasing concentrations of EDTA were included in the reaction to simulate increasing concentrations of an inhibitor. The results illustrate that DEC gives the same pattern of inhibition as with the sample target, showing that inhibition of PCR reaction can be identified using DEC.Real-Time PCR Selection Chart Application NoteqPCR Extraction Control Orange
Bioline成立于1992年,总部设在英国伦敦;随着时间推移,信息化的高速发展,Bioline目前已经成国际化公司,其分部设在美国,德国,法国和澳大利亚。BIOLINE是一家通过ISO9001:2008认证的公司,是世界上为数不多的超纯的dNTPs制造商之一。BIOLINE能够为大型实验室提供批量,定制和OEM的dNTP,我们已经开发和制造多种专利试剂和试剂盒。我们的核心竞争力,研发和制造的主要活动领域包括:实时定量PCR试剂盒,DNA聚合酶,逆转录酶,克隆试剂,核酸分离,超纯核苷酸合成,DNA与RNA分子量Marker,感受态细胞,分子生物学试剂,蛋白的表达及纯化。2010年,Meridian Life Science收购了 Bioline 公司。
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