1X10^6 mouse splenocytes were surface stained with FITC Anti-Mouse CD3ε (FITC-65060, Clone: 145-2C11) and CoraLite®647-conjugated Rat IgG2a isotype control (left) or 5.00 ul CoraLite®647-conjugated Anti-Mouse CD38 (CL647-65059, Clone: 90) (right). Cells were not fixed.