Chemical Structure (image) University of Chicago Share Print E-Mail Caption This image shows the differences in chemical structure of the 5-methylcytosine (5mC) base (left) from the 5-hydroxymethylcytosine (5hmC) base in DNA against a background of DNA sequencing imagery. Researchers at the University of Chicago, the Ludwig Institute for Cancer Research at the University of California, San Diego, and Emory University Have presented the first genomic map of 5hmC at single-base resolution. DNA 5hmC modification plays key roles in processes fundamental to life. Credit Chuan He Usage Restrictions News organizations may use this image in connection with reports about the work of Chuan He, Bing Ren, Peng Jin and their colleagues. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.