Fig. 4. Antibody responses in Hp91 immunised mice.
Serum was obtained from immunised mice (5 mice per group) 10 days after the final immunisation and analysed for antibody levels by ELISA. (A) A 1:100 dilution of the serum from immunised mice as indicated, (B) a 1:100 dilution of serum from mice immunised with OVA protein and Hp91 (0 or 250μg in PBS) or (C) a serial dilution of serum from mice immunised with OVA protein and Hp91 (500 μg) in PBS was added to the plates, followed by a peroxidase-conjugated anti-mouse IgG1 antibody. Plates were developed with TMB substrate and absorbance was analysed on a microplate reader. Asterisks, p < 0.001; Student's t-test.