P2X7 Protein Receptor (IMAGE) Oregon Health & Science University Caption An illustration shows how the P2X7 protein receptor opens and closes, allowing charged particles to enter a cell and trigger cellular changes. OHSU resarchers used cryoelectron microscopy to obtain the protein's 3D structure for the first time. P2X7 is associated with many diseases, including inflammation, coronary artery disease, cancer and multiple sclerosis. Credit Oregon Health & Science University Usage Restrictions Credit Oregon Health & Science University 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.