OVA323–339 peptide was synthesized by the Emory University Microchemical Core Facility. Ovalbumin was from Worthington Biochemical Corporation and hen egg lysozyme was from Sigma-Aldrich. Some reagents were purchased: mouse IFN-γ (PeproTech), and lisinopril (Sigma). The PE-conjugated anti-CD69, PE-conjugated anti-CD80 (16–10A1), APC-conjugated anti-CD3ε, APC-conjugated anti-CD86 (GL-1) and the ELISA kits for IL-2, IFN-γ and IL-17A were all purchased from eBioscience. Alexa Fluor 488-conjugated Ovalbumin was from ThermoFisher. AF6–120.1 (anti-I-Ab),1G11 (anti-EEA1) and eBioH4A3 (anti-LAMP-1) were from eBioscience. A rabbit antiserum that recognizes mouse ACE was previously described (13 (link)). The FITC-conjugated mouse TCR Vβ Screening Panel was from BD Pharmingen. Flow cytometry stained samples were analyzed on CyAn ADP (Beckman Coulter) and data were analyzed with FlowJo software.