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摘要
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Melting is a fundamental property of DNA that can be monitored by absorbance or fluorescence. PCR conveniently produces enough DNA to be directly monitored on real-time instruments with fluorescently labeled probes or dyes. Dyes monitor the entire PCR product, while probes focus on a specific locus within the amplicon. Advances in amplicon melting include high resolution instruments, saturating DNA dyes that better reveal multiple products, prediction programs for domain melting, barcode taxonomic identification, high speed microfluidic melting, and highly parallel digital melting. Most single base variants and small insertions or deletions can be genotyped by high resolution amplicon melting. High resolution melting also enables heterozygote scanning for any variant within a PCR product. A web application (uMelt, http://www.dna-utah.org) predicts amplicon melting curves with multiple domains, a useful tool for verifying intended products. Additional applications include methylation assessment, copy number determination and verification of sequence identity. When amplicon melting does not provide sufficient detail, unlabeled probes or snapback primers can be used instead of covalently labeled probes. DNA melting is a simple, inexpensive, and powerful tool with many research applications that is beginning to make its mark in clinical diagnostics.
Keyword:
Nucleic acid
High resolution melting
Genotyping
Scanning
Methylation
Molecular diagnostics
期刊
IF:
10.3
论文数:
974
被引数:
9.7K
机构
引用论文
Comparison of multiple DNA dyes for real-time PCR: effects of dye concentration and sequence composition on DNA amplification and melting temperature
NUCLEIC ACIDS RESEARCH
IF13.1
Sensitivity and specificity of single-nucleotide polymorphism scanning by high-resolution melting analysis
CLINICAL CHEMISTRY
IF6.3
Sub-7-second genotyping of single-nucleotide polymorphism by high-resolution melting curve analysis on a thermal digital microfluidic device通过热数字微流控设备上的高分辨率熔解曲线分析对单核苷酸多态性进行亚7秒基因分型
LAB ON A CHIP
IF5.4
Direct Detection and Quantification of Methylation in Nucleic Acid Sequences Using High-Resolution Melting Analysis
ANALYTICAL CHEMISTRY
IF6.7

