Qubit PicoGreen Assay

  • The measurement of ChIP-DNA sample concentration on a NanoDrop tends to be very inaccurate due to the high percent of background measured in the A260 wavelength in dilute concentrations of nucleic acid.
  • The Qubit fluorometer (Invitrogen) uses the Quant-iT dsDNA HS Assay Kit is used to measureDNA concentration. This assay uses PicoGreen to discriminate between various nucleic acid contributors in the sample and provide an accurate measurement of the concentration of dsDNA in the sample. This assay can quantitate samples that range from 10 pg/μl to 100 ng/μl.
  • ChIP-DNA samples typically require this more-sensitive pico-green based assay to provide an accurate of assessment of the DNA concentration. ChIP-DNA samples are typically observed to have a concentration that is less than 1 ng/ul.
  • A minimum of 10 μl of each sample should be provided for measurement. Ideally, only 1 μl of sample will be used for the measurement and the remainder will be returned. However, many ChIP-DNA samples are severely dilute and the assay may take as much as 5-8 μl of sample.

Contact Us

Genomics Director
Brian K. Dalley, PhD
brian.dalley@hci.utah.edu
801-585-7192

Bioinformatic Analysis Director
David Nix, PhD
david.nix@hci.utah.edu
801-587-4611

Governance

HCI Senior Director Oversight
Bradley Cairns, PhD

Faculty Advisory Committee Chair
Bradley Cairns, PhD

Faculty Advisory Committee Members
Richard Clark, PhD
Jason Gertz, PhD
Christopher Gregg, PhD
Philip Moos, PhD
Sean Tavtigian, PhD
Katherine Varley, PhD
Joseph Yost, PhD