Diagram showing zebrafish ELAVL1a truncation and their antibacterial activities and binding to LPS and LTA.a Diagram showing zebrafish ELAVL1a truncation. b Antibacterial activity of rE181–242 against M. luteus and E. coli. c, d, e Interaction of rE181–242 (c), rE1–180 (d) and rE243–324 (e) with LTA and LPS revealed by ELISA. f The in vivo bioactivity of rE1–180, rE181–242, and rE243–324. The early (8-cell stage) embryos were first microinjected with PBS, BSA, anti-β-actin antibody (AcAb), anti ELAVL1a antibody (ELAVL1aAb), rE1–180, rE181–242, rE243–324 and rELAVL1a, then challenged by injection with live A. hydrophila. The development of the embryos was observed and the cumulative mortality rate was calculated at 24 h after injection. All data were expressed as mean values ± S.D. (n = 3). The data are from three independent experiments performed in triplicate. The bars represent the mean ± SD. The significance of the difference was determined by one-way ANOVA. *p < 0.05. AcAb, anti-β-actin antibody; ELAVL1aAb, mouse anti-ELAVL1a antibody.
|