qPCR

Nucleases are enzymes that catalyze the hydrolysis of phosphodiester bonds in DNA or RNA. They play fundamental roles in nucleic acid extraction, sample purification, contamination control, and molecular experiment quality control.

Polymerases are core enzymes used in nucleic acid replication, amplification, sequencing, labeling, reverse transcription, and in vitro transcription. Different polymerases vary significantly in template compatibility, thermostability, extension rate, fidelity, strand-displacement activity, ...

In real-time quantitative PCR (qPCR) and reverse-transcription real-time quantitative PCR (RT-qPCR), probe chemistries convert target amplification into quantifiable signals through “sequence-specific hybridization–fluorescence switching.” Compared with intercalating dye methods, ...

The readout intensity in real-time quantitative fluorescence PCR reflects not only the target amplification process, but also superimposed system-level factors such as well-to-well optical variation, pipetting volume deviations, evaporation and condensation, bubble-induced scattering, and drift ...