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SYBR Green fluorescence chart produced in real-time PCR Melting curve produced at the end of real-time PCR. A real-time polymerase chain reaction (real-time PCR, or qPCR when used quantitatively) is a laboratory technique of molecular biology based on the polymerase chain reaction (PCR).
SYBR Green When the SYBR Green binds to the double-stranded DNA of the PCR products, it will emit light upon excitation. The intensity of the fluorescence increases as the PCR products accumulate. This technique is easy to use since designing of probes is not necessary given lack of specificity of its binding.
SYBR Green I (SG) is an asymmetrical cyanine dye [1] used as a nucleic acid stain in molecular biology. The SYBR family of dyes is produced by Molecular Probes Inc., now owned by Thermo Fisher Scientific. SYBR Green I binds to DNA. The resulting DNA-dye-complex best absorbs 497 nanometer blue light (λ max = 497 nm) and emits green light (λ ...
SYBR Green I is a first generation dye for HRM. It fluoresces when intercalated into dsDNA and not ssDNA. Because it may inhibit PCR at high concentrations, it is used at sub-saturating concentrations. Recently, some researchers have discouraged the use of SYBR Green I for HRM, [10] claiming that substantial protocol modifications are required ...
The Minimum Information for Publication of Quantitative Real-Time PCR Experiments (MIQE) guidelines are a set of protocols for conducting and reporting quantitative real-time PCR experiments and data, as devised by Bustin et al. in 2009. [1]
A master mix is a mixture containing precursors and enzymes used as an ingredient in polymerase chain reaction techniques in molecular biology. Such mixtures contain a mixture dNTPs (required as a substrate for the building of new DNA strands), MgCl 2, Taq polymerase (an enzyme required to building new DNA strands), a pH buffer and come mixed in nuclease-free water.
TaqMan probes are hydrolysis probes that are designed to increase the specificity of quantitative PCR.The method was first reported in 1991 by researcher Kary Mullis at Cetus Corporation, [1] and the technology was subsequently developed by Hoffmann-La Roche for diagnostic assays and by Applied Biosystems (now part of Thermo Fisher Scientific) for research applications.
Since the late 1990s product analysis via SYBR Green, other double-strand specific dyes, or probe-based melting curve analysis has become nearly ubiquitous. The probe-based technique is sensitive enough to detect single-nucleotide polymorphisms (SNP) and can distinguish between homozygous wildtype , heterozygous and homozygous mutant alleles by ...
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