Shorter probes with high melting temperatures and increased specificity compared to traditional 5' nuclease probes
These locked nucleic acid probes are commonly used for genotyping and custom applications such as transcript variant identification or the differentiation of microbial species. When incorporated into a probe, locked nucleic acids impart heightened structural stability to the target sequence leading to increased hybridization temperature.
*LNA is a registered trademark of Qiagen, Inc.
See the Product details tab on the Affinity Plus™ qPCR Probes product page for design considerations or contact us for design assistance.
Prices listed include probe sequence (10–25 standard bases with up to 6 locked nucleic acid nucleotides), reporter, quencher, and HPLC purification.
PrimeTime Mini LNA qPCR Probes are ideal for screening a small sample set or performing a few reactions to optimize probe designs.
PrimeTime LNA qPCR Probes are offered with a wider selection of dyes and quenchers than PrimeTime Mini LNA qPCR Probes, and are best-suited for large-scale or high-throughput applications.
Locked nucleic acid nucleotides can be incorporated into effective qPCR probes [1–4]. Because these bases significantly increase melting temperature (Tm), PrimeTime LNA qPCR Probes can be designed with shorter lengths than standard qPCR probes. Shorter probes have better quenching and a higher signal-to-noise ratio and are, therefore, more sensitive. More importantly, these probes offer an improved ability to distinguish mutations or single nucleotide polymorphisms (SNPs) . A locked nucleic acid probe can be designed to have a ΔTm of >15°C, which increases the precision of allele determination in real-time PCR or other methods that use differential hybridization to distinguish polymorphisms.
For design strategies and tips, see the Product details tab on the Affinity Plus qPCR Probes product page or contact us. Design fees may apply.
PrimeTime LNA qPCR Probes can be ordered either at a guaranteed yield of 0.5 nmol or at defined synthesis scales to suit your research needs.
There are no structural differences between the locked nucleic acids used in Affinity Plus and PrimeTime LNA* qPCR Probes. Functional data can be found on the Affinity Plus qPCR Probes page. While these modified probes have identical chemical structures and physical properties, Affinity Plus qPCR Probes provide a better value.
Learn more about Affinity Plus qPCR Probes.
*LNA is a registered trademark of Qiagen.
*RUO—For research use only. Not for use in diagnostic procedures. Unless otherwise agreed to in writing, IDT does not intend for these products to be used in clinical applications and does not warrant their fitness or suitability for any clinical diagnostic use. Purchaser is solely responsible for all decisions regarding the use of these products and any associated regulatory or legal obligations.