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ATAC Sequencing

The Assay for Transposase-Accessible Chromatin Sequencing (ATAC-seq)

ATAC-Seq is a rapid assay of the epigenetic state by enabling identification of open chromatin regions. In the assay, intact nuclei are treated with a hyperactive Tn5 transposase mutant which is able to simultaneously tag the target DNA with sequencing adapters and fragment the DNA in a process termed “tagmentation”. Because of the assay's speed, simplicity, sensitivity, and applicability to a wide range of sample types, ATAC-Seq has become a commonly used epigenetic assay, and can serve as a gateway to further, more detailed, epigenetic analyses.

ATAC Sequencing

Sample submission requirements

Service Sample Type Minimum Amount Minimum Cell Viability
ATAC-seq Cells 1 million cells per sample 80%
  • Single cells are suspended in 1xPBS
  • Samples have to be sent to core before 2pm
  • The cells will be checked the quality and the core has the rights to determine if the samples are qualified for the experiment
  • Please contact the core via email at [email protected] or call 713-500-7933 for more information.

Service workflow

ATAC-Seq service workflow diagram illustrating steps from sample preparation and nuclei isolation to sequencing and data analysis. Labels outline the steps, from cells to isolate nuclei to transposition to purify DNA to PCR amplification to purify library to library QC to sequencing.

Useful documents