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"Language": "en",
"Value": "This novel optimized mixture of high-quality N-terminal-deleted Taq DNA Polymerase and a specific oligonucleotide (aptamer) provides improved discrimination against misextension. As with the AptaTaq DNA Polymerase System, the AptaTaq exo DNA Polymerase-based assay shows high specificity and a broad dynamic range of products.",
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"Value": "Use AptaTaq exo DNA Polymerase for:
- SNP analysis and genotyping
- Allele-specific PCR
- Multiplexing
- Arbitrarily primed PCR
- Automated PCR requiring prolonged handling at room temperature
When time to result matters, this novel hot start technology is ideal as it does not require any activation time.",
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"Value": "N-terminal truncated Taq DNA Polymerase with reversible hot start system and no 5'-3' exonuclease activity for optimal detection of mismatches.",
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- Optimize your SNP analysis.
Discriminate between paired and unpaired primer ends using an enzyme optimized for allele-specific PCR. - Obtain reliable results fast.
Benefit from the general features of the AptaTaq DNA Polymerase System with the differentiating capabilities of a 5'-3' exonuclease activity-lacking Taq DNA Polymerase.
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"Value": "The aptamer/polymerase mixture is a hot start system with reversible inhibition of the polymerase activity at lower temperatures. Polymerase inactivation is achieved by a tight bond of the folded aptamer-oligonucleotide to the active site of the polymerase at lower temperatures. Upon heating above +60°C, the aptamer acts like a molecular switch, changing its temperature-dependent tertiary structure and releasing the active polymerase. Dropping the temperature below +55°C shuts off the polymerase activity again. Similar to antibody-based methods, the enzyme is much more quickly activated by heating, than chemically modified polymerases. In contrast to antibodies, the aptamer-oligonucleotide is much more stable, allowing longer storage at room temperature.",
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"Value": "AptaTaq exo DNA Polymerase is active at temperature above +60 to +65°C and inactive below +55°C. This hot start feature eliminates the risk of nonspecific primer extension. Taq DNA Polymerase is a highly processive 5'-3' DNA Polymerase that lacks 5'-3' and 3'-5' exonuclease activity. Taq DNA Polymerase is stable during prolonged incubations at elevated temperatures (+95°C). The enzyme exhibits highest activity at a pH of approximately 9 (adjusted at +20°C) and temperatures approximately +75°C. Taq DNA Polymerase accepts dNTP analogs as substrates.
pH optimum: Approximately 8.3 (+20°C)
Temperature optimum for elongation: Approximately +72°C
Half life at +95°C: Approximately 40 minutes
Divalent ion requirement: Mg
2+ (standard concentration, 2 mmol/L)
dNTP requirement: Approximately 200 μmol/L for each dNTP",
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Appearance: Clear, colorless solution
Storage buffer: Tris/HCl, 20 mmol/L; KCl, 100 mmol/L; EDTA, 0.1 mmol/L; DTT, 1 mmol/L; Nonidet P40, 0.5% (v/v); Tween 20, 0.5% (v/v); glycerol, 50% (v/v); casein, 0.1 g/L; pH approximately 8.0 at +4°C
Volume activity: 5.5±0.5 U/μL
Aptamer concentration (HPLC): 24.0 μmol/L ±10%
Unspecific endonucleases (λDNA): Not detectable in up to 30 U after 16 hours incubation at +37°C.
Nicking activity (pBR322 DNA): Not detectable in up to 30 U after 16 hours incubation at +37°C.
Exonucleases (
3H-DNA): Not detectable in up to 30 U after 4 hours incubation at +65°C.
Performance test in qPCR using LightCycler® 480 (≥0.03 ng human genomic DNA, 339 bp tPA fragment): Corresponds to reference
Stability: At -15 to -25°C within specification range for 12 months.",
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