Sample Submission

The key to a successful project is starting with high quality samples. Depending on the experiment and application (DNA methylation or chromatin analyses), investigators will submit DNA or tissues/cells. 

Below are our requirements for genomic DNA. For any questions about DNA preparation, please email us here

DNA Methylation

For all methylation assays we require high-quality genomic DNA:

  • 260 / 280 = 1.8 - 2.0
  • 260 / 230 ~ 2

DNA specifications for each assay are reported in table below.

The Gene Profile Shared Resources (GPSR) is a great resource that supports DNA extractions and/or QA here at OHSU. The team at the GPSR works closely with our team to obtain high quality DNA suitable for our assays. DNA specifications for each DNA methylation assay are reported in the table below.


Hi-C experiments start from tissues or cells. The sample requirements are dependent on the assay to be performed. Please contact us here before preparing your samples.

Assay Recommended DNA Input Range Recommended DNA Elution Volume Minimum Concentration Species Restriction
Whole Genome Bisulfite Sequencing 50-100ng per library prep 50-100ul 1 ng/ul None
Reduced Representation Bisulfite Sequencing 100ng per library prep 50-100ul 3 ng/ul None
Low-Input Whole Genome Bisulfite Sequencing 10pg-100ng per library prep 1-20ul 10 ng/ul None

Sample Drop-off

Ready to start a project? Please fill out the intake form and email it to us here. We will schedule a drop off after reviewing the submission.

We are located in the CHH1 at the 14th floor.