Pfu DNA Polymerase is a high-fidelity, thermostable enzyme isolated from Pyrococcus furiosus. Pfu DNA Polymerase possesses 3?→5? exonuclease (proofreading) activity. Base misincorporations that may occur during polymerization are rapidly excised by this proofreading activity. AceGFast Pfu DNA Polymerase has been genetically engineered to enhance the amplification efficiency by fusing DNA binding domains to the Pfu DNA polymerase. AceGFast Pfu DNA Polymerase has the characteristics of high amplification speed (extension ~2 kb/min), high fidelity and strong anti-interference ability. Consequently, AceGFast Pfu DNA Polymerase is recommended for use in PCR and primer extension reactions that require high-fidelity synthesis. AceGFast Pfu DNA Polymerase-generated PCR fragments are blunt-ended.