TPC2 in a Melanosome (IMAGE) Brown University Caption Green fluorescent protein marks where the protein TPC2 is located in a melaonsome. Credit Oancea et. al./Brown University Usage Restrictions with credit 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.