Applied Biosystems™

TaqMan™ Gene Expression Assay (FAM) This product, and/or its packaging, incorporates one or more environmental/green features. Click on this icon to learn more.

Catalog number:  4351370

Related applications:

Real Time PCR-Based Gene Expression Profiling

| Real Time PCR (qPCR)

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Applied Biosystems TaqMan Gene Expression assays are used for quantitative real-time PCR analysis of gene expression and consist of a pair of unlabeled PCR primers and a TaqMan probe with a dye label (FAM) on the 5’ end and a minor groove binder (MGB) and non-fluorescent quencher (NFQ) on the 3’ end.

Features of TaqMan Gene Expression assays include:
Easy to use—just add cDNA and master mix and run the qPCR—no melt curves required
Specific—TaqMan assays use proprietary MGB-containing probes that can be up to 15 bases shorter than non-MGB probes, improving the specificity of the assay
Sensitive—TaqMan assays are ideal for measuring low levels of expression or low-abundance targets
Accurate—identify small fold-changes with high accuracy of quantitation
Extensive content—Over 1.8 million predesigned assays available for over 25 different species
Gold-standard TaqMan qPCR chemistry—TaqMan assays draw on Thermo Fisher Scientific's bioinformatics assay design pipeline to help ensure high specificity and minimal cross-reactivity, even for gene variants with high sequence homology
Fast delivery—your assays shipped in as little as 1–2 days (see below)

Approximate ship time
Inventoried: 1–2 days in North America, 3–5 days in Europe*
Made to order: 4–6 days in North America, 6–10 days in Europe

TaqMan Gene Expression assays are the gold standard in real-time PCR gene expression studies, built on more than 20 years of experience. Each assay includes target primers and a sequence-specific probe optimized for the best functional performance. No additional design, optimization, or melt curve analysis is needed. Available in a wide variety of formats and species, new assay designs are constantly added to help meet your research needs. TaqMan assays have been cited in over 40,000 publications and are backed by more than 350 patents.

All of our predesigned TaqMan Gene Expression assays are covered by the TaqMan Assays qPCR Guarantee.**

Recommended master mix: TaqMan Fast Advanced Master Mix

*Our most popular assays are stocked in North America and Europe for overnight delivery where possible. If an assay is out of stock, it may take an additional 3–5 business days for delivery.

**Subject to terms and conditions. For complete details, go to

For Research Use Only. Not for use in diagnostic procedures.


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Generic Product: TaqMan Gene Expression
Green Features: Sustainable packaging
Product Line: TaqMan™
Shipping Condition: Room Temperature

Contents & storage

1 tube containing 20X (XS, S, and M sizes) or 60X (L size) mix of pre-formulated assay (1 probe and 2 primers).

Store at -15°C to -25°C.