Arginine Transporter (IMAGE) Indiana University Caption This image shows increased expression of an arginine transporter (CAT1, green) in host cells infected with Toxoplasma parasites (nuclei stained blue). Credit Indiana 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.