(A-C) Confocal microscopy of fixed 5 dpf larval zebrafish intestine indicating Aer01 (anti-dTom, magenta) and mucus (WGA-488, green) distribution (a) throughout the entire larval zebrafish gut, (b) the fore/mid-gut, and (c) distal mid-gut region. See also Figure S1.
(D) Experimental design of culture-based aggregation assay and calculation of aggregation index.
(E) Top: representative images of mucin-and GlcNAc-mediated Aer01 aggregation after 6 hr exposure. Bottom: mean aggregation index of Aer01 exposed to PGM or its monomeric glycan components (N=3).
(F) Aer01 hydrolysis of 4-Nitrophenyl (pNP) substrates. (N=5). The mean values are indicated in all figures.