The binding of the Taq antibody to Taq polymerase is the premise of hot start PCR. By preventing Taq polymerase activity until the dentauration step of PCR is underway, nonspecific amplification due to mispriming and/or formation of primer dimers during PCR assembly is prevented. As a result, experimental background is significantly decreased and reaction specificity is increased.
The Taq antibody can be added to Taq Polymerase, TaKaRa Ex Taq or TaKaRa LA Taq before PCR to lower background, increase specificity and allow room temperature reaction assembly.