Transcriptional delineation of polysaccharide utilization loci in the human gut commensal DSM18205 and co-culture with exemplar species on dietary plant glycans.

Unlabelled: There is growing interest in members of the genus (family ) as members of a well-balanced human gut microbiota (HGM). are particularly associated with the consumption of a diet rich in plant polysaccharides comprising dietary fiber. However, understanding of the molecular basis of complex carbohydrate utilization in species is currently incomplete.

The molecular basis of cereal mixed-linkage β-glucan utilization by the human gut bacterium Segatella copri.

Mixed-linkage β(1,3)/β(1,4)-glucan (MLG) is abundant in the human diet through the ingestion of cereal grains and is widely associated with healthful effects on metabolism and cholesterol levels. MLG is also a major source of fermentable glucose for the human gut microbiota (HGM). Bacteria from the family Prevotellaceae are highly represented in the HGM of individuals who eat plant-rich diets, including certain indigenous people and vegetarians in postindustrial societies.

SACCHARIS v2: Streamlining Prediction of Carbohydrate-Active Enzyme Specificities Within Large Datasets.

Carbohydrates are chemically and structurally diverse, composed of a wide array of monosaccharides, stereochemical linkages, substituent groups, and intermolecular associations with other biological molecules. A large repertoire of carbohydrate-active enzymes (CAZymes) and enzymatic activities are required to form, dismantle, and metabolize these complex molecules. The software SACCHARIS (Sequence Analysis and Clustering of CarboHydrate Active enzymes for Rapid Informed prediction of Specificity) provides a rapid, easy-to-use pipeline for the prediction of potential CAZyme function in new datasets.