b-1,3-glucan

Laminaran is a β-1,3-glucan isolated from brown algae, often serving as a typical ligand for Dectin-1. It possesses anti-cancer, immune-modulating, and radiation-protective properties. Laminaran can be catalyzed by glucanase. In in vitro and in vivo experiments, Laminaran has demonstrated anti-tumor activity and may be used for severe cancers.

Echinocandin B is a cyclic hexapeptide echinocandin antibiotic from Aspergillus nidulans var. echinulatus . It attacks the cell wall of fungi by inhibiting beta-1,3-glucan synthesis.

Arborcandin B is an inhibitor of 1,3-β-glucan synthase and serves as an antifungal antibiotic. The IC50 values of Arborcandin B for Candida albicans (C. albicans) and Aspergillus fumigatus (A. fumigatus) are 0.30 μg mL and 0.025 μg mL, respectively. The minimum inhibitory concentration (MIC) for Candida species is 2-4 μg mL.