Fig. 3: Differential gene expression at mRNA and protein level in the identified fucoidan PULS from strains 892 and 913.

Log₂-fold changes (LFC) of mRNA and protein expression data are based on pairwise comparisons between different carbon sources in strains 892 (a) and 913 (b). Color scale indicates upregulation (blue) or downregulation (red) of transcripts or proteins in the indicated fucoidan vs. other carbon sources. Expression values were quantified in three biologically independent replicates (n = 3). Only PULs where fucosidases were detected at the protein level are shown. Bold letters highlight those proteins that were significantly more abundant in one of the fucoidan sources as compared to laminarin (two-sided Student’s t-test, p value < 0.05). Source data are provided as a Source Data file. Fuc: fucoidan from Fucus vesiculosus; Und: fucoidan from Undaria pinnatifida; Lam: laminarin; GH: glycosyl hydrolase; S: sulfatase; CE: carbohydrate esterase; CBM: carbohydrate binding modules; Hyp: hypothetical; Carb: carbohydrate.