Related Experiment Video
Updated: Feb 3, 2026

Detection of a CDH1 Rare Transcript Variant in Fresh-frozen Gastric Cancer Tissues by Chip-based Digital PCR
Published on: February 5, 2018
Rare Variant Quantitation Using Droplet Digital PCR
Brian Parkin1,2
1Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA. bparkin@med.umich.edu.
Abstract:
Droplet digital PCR (ddPCR) allows precise quantitation of individual copies of DNA. Using allele-specific fluorescent oligonucleotide probes, ddPCR can enumerate both mutant and wild-type alleles enabling highly sensitive detection and quantitation of the variant allele frequency of mutated genes. In this protocol, we describe a method for using ddPCR to detect mutations in genomic DNA with a sensitivity of up to 1 in 50,000 DNA copies.
Related Concept Videos
Histone Variants at the Centromere
PCR
Real Time RT-PCR
The real-time quantification of the number of amplified products is...
Transmission-based Precautions I: Contact, Enteric, and Droplets
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
Quantitative Analysis
In quantitative analysis, two key measurements are made: the sample quantity and a property proportional to the amount of the analyte (the substance being analyzed). This forms the basis of the...
Social Foundations of Self IV: Self in Digital Communication

