Toward epigenetic mapping of human chromosomes in nanochannel arrays

Y. Michaeli, T. Gabrieli, Y. Ebenstein*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have recently develop a method for optical detection of the epigenetic modification 5-hydroxymethylcytosine (5hmC) at the single-molecule level. We use a chemo-enzymatic reaction to covalently attach a fluorescent reporter molecule to 5hmC nucleotides. Labeled DNA is electro-kinetically squeezed into an array of silicon nanochannels and imaged on a fluorescence microscope. 5hmC residues are visible as fluorescent spots along the DNA contour. Single-molecule imaging of extended lambda phage genomes that are hydroxymethylated at specific sites revealed individual fluorescent labels at expected positions along the genome. We show first results of single-molecule epigenetic mapping of chromosomal DNA extracted from human peripheral blood cells.

Original languageEnglish
Title of host publication18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014
PublisherChemical and Biological Microsystems Society
Pages2538-2539
Number of pages2
ISBN (Electronic)9780979806476
StatePublished - 2014
Event18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014 - San Antonio, United States
Duration: 26 Oct 201430 Oct 2014

Publication series

Name18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014

Conference

Conference18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014
Country/TerritoryUnited States
CitySan Antonio
Period26/10/1430/10/14

Keywords

  • Genome mapping
  • Hydroxymethylcytosine
  • Nanochannels
  • Single-molecule

Fingerprint

Dive into the research topics of 'Toward epigenetic mapping of human chromosomes in nanochannel arrays'. Together they form a unique fingerprint.

Cite this