Fig. 3 H4K20ac Accumulated (IMAGE) Osaka University Caption H4K20ac accumulated region excludes transcriptional activators but includes only a transcriptional suppressor. Therefore, H4K20ac is implicated in gene repression. Credit Osaka University Usage Restrictions None License Licensed 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.