Scheme 1 (IMAGE) Impact Journals LLC Caption Scheme 1: Inside activation of EGFR by PAR as indicated by Tyr-phosphorylation, potently inhibited by Pc(4-4). Credit 2024 Nag et al. Usage Restrictions Original Content 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.