KAPA hgDNA Quantification and QC Kit


KAPA hgDNA Quantification and QC Kits contain all the consumables needed for the qPCR-based quantification and quality assessment of human genomic DNA samples prior to NGS library construction. Each kit contains KAPA SYBR FAST qPCR Master Mix, optimized for high-performance SYBR Green I-based qPCR through our Directed Evolution Technology, a set of pre-diluted DNA standards and primer premixes targeting different portions of a highly conserved single-copy human locus. Absolute quantification is achieved with the primer pair defining the shortest fragment and the additional primers providing information about the amount of amplifiable template in the DNA sample. Quality scores (or Q-ratios) generated with the kit may be used to predict the outcome of library construction or tailor workflows for samples of variable quality, particularly FFPE DNA.


Benefits of KAPA hgDNA Quantification and QC Kits

  • Quantification and quality assessment with a single assay
  • Ability to correlate quality scores to sequencing metrics
  • A versatile and easy-to-automate workflow


Principle of the hgDNA Quantification and QC assay

First, a single set of DNA standards is used to generate up to three standard curves using three different primer pairs that amplify targets of 41 bp, 129 bp, or 305 bp within a conserved, single-copy human locus. Next, the 41 bp assay is used for absolute quantification of DNA samples. For assessing DNA quality, standard curves are generated and samples assayed with the 129 bp and/or 305 bp primer premix(es). Since poor DNA quality has a greater impact on the amplification of longer targets, the relative quality of a DNA sample can be inferred by normalizing the concentration obtained using the 129 bp or 305 bp assay against the concentration obtained from the 41 bp assay. This normalization generates a Q-ratio (with a value between 0 and 1) that is indicative of DNA quality, or the amount of amplifiable material in a DNA sample.

Product highlights


Obtain concentration and quality information with a single assay

  • Allows for absolute quantification of dilute DNA samples
  • Quantification with an additional primer pair provides a Q-ratio that is indicative of sample quality


Establish sample control minimum

  • Indicate whether a sample is of sufficient quantity and quality for successful library preparation
  • Reduce time and effort by eliminating library construction and sequencing of samples that do not pass QC


Obtain actionable data for sample preparation

  • Q-ratios correlate with key sequencing metrics such as duplication rates and mean target coverage

All graphic data is on file, unless otherwise noted.