Base editing and chemical proteomics (IMAGE) Scripps Research Institute Caption Scripps Research scientists combined two methods to study cysteine residues in proteins previously linked to cancer. Using chemical proteomics (top), they learned which cysteines were accessible to drugs. Using genome editing (bottom), they analyzed the functional consequences of altering each cysteine. Together, they suggest which cysteines may be effective cancer drug targets. Credit Scripps Research Usage Restrictions With related coverage and credit 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.