OBP49a Protein (IMAGE) University of California - Santa Barbara Caption The red shows expression of the OBP49a protein in accessory (thecogen) cells in gustatory sensilla, which are distributed on the labella. Credit UCSB 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.