In direct ELISAs, approximately 5% cross-reactivity with recombinant mouse (rm) EphB6 and rmEphA3 is observed and less than 1% cross-reactivity with rmEphA2, rmEphA4, rmEphA6, rmEphA7, rmEphA8, rmEphB2, and rmEphB3 is observed. Reconstitute at 0.2 mg/mL