On comparing log10 units of protection at 28 days after challenge in individual protein immunized mice, rOmp25 (1.46) and rL7/12 (1.75) with alum as the adjuvant, it was observed that Omp25+L7/L12 immunized mice showed a superior level of protection against B. abortus 544 infection, however S19 exhibited the maximum. Here, SYNJ2BP is linked to infection.