Extended Data Fig. 4: LC–HRMS extracted ion chromatogram traces of the metabolic extracts of muf+ strains.
From: Mutanofactin promotes adhesion and biofilm formation of cariogenic Streptococcus mutans

a, A comparison of LC–HRMS extracted ion chromatogram traces of the metabolic extracts of Smu57 (upper panel) and its Δmuf mutant (bottom panel). A 1-hour elution condition was employed. b, LC–HRMS extracted ion chromatogram traces of the metabolic extract from Smu57 (upper panel), and HPLC trace of the same sample monitored at UV λ = 330 nm (bottom panel). A 30-min elution condition was employed. c, LC–HRMS extracted ion chromatogram traces of the metabolic extract of Smu50. d, LC–HRMS extracted ion chromatogram traces of the metabolic extract of Smu56. a–d, EIC + = 459.23 ± 0.01, 542.21 ± 0.01, 540.23 ± 0.01, 608.22 ± 0.01, and 698.25 ± 0.01, which correspond to compounds 1, 2, 3, 4, and 5, respectively.