GDP-β-L-fucose is a metabolite in plant and animal. It used for microbe agglutination assay and agglutination inhibition assay. GDP-β-L-fucose is formed by the oxidation-reduction and epimerization of GDP-R-D-mannose in most organisms.
Mycothiol is a glyco-inositol-cysteine. It also conjugates exogenous compounds for detoxication. It also is the microbe equivalent of glutathione in the eukaryote.