TaqMan® SNAP Assays
The proven gold standard for detection and discrimination of virtually every SNP of interest

Single nucleotide polymorphisms (SNPs) are a common source of genetic variation within genomic DNA and typically confer a single nucleotide difference within a specific gene locus, resulting in two alleles of the gene. SNPs within the coding or regulatory regions of a gene can affect function, or more commonly serve as biological markers for inheritance of specific loci.

Applied Biosystems TaqMan SNP Genotyping assays help you detect and distinguish SNPs accurately and efficiently, so you can better understand their associations and roles in gene function and disease.

  • Minor Groove Binder (MGB) technology enables TaqMan probes to discriminate between highly homologous allele sequences
  • Robust design pipeline with 90+ parameters for optimal primer-probe combinations
  • Functional quality testing with 20 gDNA samples for each human assay
  • Flexible formats, including single tubes; 48-, 96-, and 384-well plates; and OpenArray plates, to accommodate any throughput and number of targets and samples
  • Gold-standard chemistry backed by more than 40,000 publications and over 300 patents
  • TaqMan Performance Guarantee* ensures the assay will work as described or we’ll replace it

Each TaqMan SNP Genotyping Assay includes two differentially labeled, allele-specific TaqMan MGB probes and a PCR primer pair that uniquely amplify and provide unmatched specificity for the allele of interest. Choose an assay from one of more than 17 million predesigned assays, or customize your own using our Custom Assay Design Tool.

Leverage the power of MGB for your genotyping studies

Assay search and ordering tool

The largest, most comprehensive collection of predesigned assays available anywhere

Our predesigned TaqMan Assay collection features over 17 million SNP assays, including 4 million HapMap SNPs, nearly 1 million coding SNPs, and 1.4 million common 1000 Genomes SNPs. Our expanded content ensures that we have a predesigned assay to help accelerate your human and mouse SNP genotyping studies.

Learn more about our predesigned SNP Genotyping Assays ›


Can’t find a predesigned assay that’s right for you? Design your own.

Utilize our proprietary assay design algorithm to design your own custom SNP genotyping assay for any organism you can imagine, while enjoying the benefits of our TaqMan chemistry and easy-to-use workflow.

Discover Custom TaqMan SNP Genotyping Assays ›


Flexible formats for any sample size and throughput

Order your favorite TaqMan SNP Genotyping assays pre-plated on 96- or 384-well plates using the TaqMan Custom Plating Service. Customize the perfect experiment, whether you want to analyze the prevalence of a few SNPs in a large number of samples or evaluate a few samples for a large number of SNPs.

Explore our Specialty Plating services ›


OpenArray offers even higher throughput

TaqMan OpenArray Genotyping plates enable the highest sample throughput for mid-density genotyping: >110,000 genotypes in a single day with the QuantStudio 12K Flex Real-Time PCR System.

Learn more about TaqMan OpenArray Genotyping plates ›

Video: Find the right TaqMan SNP Genotyping Assay

It's never been easier to search the more than 17 million TaqMan SNP Genotyping Assays with our new Assay Search Tool. Watch this short video to see how easy it is to find the right TaqMan SNP Genotyping Assay.