Fig. 4
From: Foreign peptide triggers boost in pneumococcal metabolism and growth
Effect of wild type pneumococcal strain 110.58 and its mutants ΔORF 1 + 2 and ΔORF 2 on CXCL8 induction in human nasopharyngeal Detroit 562 epithelial cells. ORF2 ligand peptide FPPQSV was either not added (open bars) or added to give a final a concentration of 0.07 mg/ml (shaded bars). No significant differences were observed between the strains under the same conditions. The bars indicate the mean of three independent experiments and error bars indicate standard error. Negative control refers to Detroit cells in the absence of bacteria