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Hot Start Taq DNA Polymerase is a hot-start Taq enzyme obtained by mixing Taq antibody and Taq DNA polymerase in a certain proportion, which has higher stability and detection rate. Based on the thermal stability of Taq antibody, Hot Start Taq DNA Polymerase can still maintain strict sealing at 45℃, so that non-specific amplification is inhibited during the mixed sample and system heating stage. When the reaction is maintained at 95℃ for more than 30 seconds, Taq antibody is inactivated, and the activity of Taq enzyme is completely released, ensuring that the PCR system has high amplification sensitivity and specificity. Hot Start Taq DNA Polymerase activation is not affected by factors such as buffer pH and ionic strength, and is suitable for various hot-start PCR and qPCR reactions based on Taq DNA polymerase. It is commonly used to amplify low-copy genes from complex templates （genome, cDNA）, and is based on PCR/qPCR molecular diagnostic reagents using hot-start Taq enzyme.