Products & ReviewLife Sciences

BHQ™ Probes

Dual-labelled probes featuring the original BHQ dye technologies

LGC Diagnostics and Genomics - Biosearch Technologies Oligo-Synthesis

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Description

Dual-Labeled BHQ Probes are traditional, linear, FRET probes incorporating a fluorophore and quencher covalently attached to the 5' and 3' ends of an oligo typically 20 to 30 bases in length. Fluorescence is released through the 5' exonuclease activity of Taq polymerase, which cleaves off the fluorescent dye upon the probe's hybridization to its complementary sequence.

Dual-Labeled BHQ Probes are ideal for detecting the presence and quantifying the amount of specific target sequences.

Application eBookLife Sciences

Top tips for robust qPCR results

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Reproducibility issues are a common pain point experienced by scientists carrying out quantitative polymerase chain reaction (qPCR), or real-time PCR, with challenges being linked to suboptimal design, probe selection, or workflow execution. The inconsistencies impact not only data quality, but also wasted time, lost samples and delayed research milestones.

A successful qPCR experiment relies on a well‑designed workflow, from high‑quality sample preparation to optimized reagents, primers, and probes, supported by thoughtful assay design that avoids issues like nonspecific binding or inefficient amplification. Expert probe‑selection strategies enhance specificity, especially in multiplexing, while effective troubleshooting helps diagnose common problems such as poor efficiency, primer‑dimers, or high variability. By applying key optimization techniques, researchers can achieve sensitive, accurate, and reproducible qPCR results.

Download this SelectScience guide to explore:

  • How to overcome challenges in qPCR assay design
  • A guide to selecting the right qPCR probe
  • The best way to troubleshoot your qPCR
  • Tips for qPCR optimization and validation

Resource details:

  • Document type: SelectScience guide
  • Page count: 49
  • Read time: 69 mins
  • Edition: 1st


Application eBookClinical Diagnostics

Simplifying the journey from molecular diagnostic assay development to commercialization

Molecular diagnostics (MDx) is rapidly advancing, with a growing array of DNA- and RNA-based tests now available to physicians, pharmacists, geneticists, research scientists, and other healthcare professionals.

As labs work with human and microbial genes, test developers must comply with clinical guidelines and regulations. Both established companies and start-ups face challenges, including meeting regulatory standards, ensuring quality, and managing supply chain issues. Early planning and robust partnerships are key to overcoming these obstacles.

This essential guide explores these challenges through detailed case studies. It covers everything from early development and assay formulation, to supply chain security, offering expert insights on successfully bringing PCR, next-generation sequencing (NGS), and other nucleic acid-based diagnostic tests to market.

The future of diagnostics: How innovators in molecular techniques are shaping healthcare

From enzymatics to informatics, Hillary Sullivan, Vice President of R&D at LGC Biosearch Technologies, shares her thoughts on some of the latest advancements in molecular diagnostics. With insights from successful partnerships in healthcare, Sullivan provides her perspective on what the most promising areas of scientific advancements might hold for this rapidly developing field in the next 25 years.


7 innovative qPCR probe types explained

This comprehensive walkthrough animation outlines the latest developments in probe technologies in the qPCR field, highlighting the mechanisms of seven different real-time PCR probe and primer formats:

  • Dual-labelled hydrolysis probes [00:19]
  • BHQnova™ Probes [01:17]
  • Minor groove binder (MGB) probes [01:49]
  • Locked nucleic acid (LNA) probes [02:31]
  • BHQplus™ Probes [03:15]
  • Molecular Beacons [04:45]
  • Scorpions™ Primers [06:00]


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