APOBEC3A enzyme (IMAGE) University of California - Irvine Caption This image depicts the APOBEC3A enzyme (yellow) attacking a DNA (white) to promote the deamination of the cytosine (bright orange) generating DNA mutations in the genome of the cell. Credit UCI School of Medicine Usage Restrictions None License Original content 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.