ACE2 Expressed in the Small Intestine (IMAGE) Uppsala University Caption The enzyme ACE2 (in brown) expressed in the small intestine. Using immunohistochemical analysis, the researchers evaluate ACE2 Angiotensin expression in more than 150 human cell types. Credit The Human Protein Atlas programme Usage Restrictions May only be published in connection to reports about research from the Human Protein Atlas programme or after permission from photographer. 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.