Glycosyl hydrolase family 115. Glyco_hydro_115 is a family of glycoside hydrolases likely to have the activity of xylan a-1,2-glucuronidase, EC:3.2.1.131, or a-(4-O-methyl)-glucuronidase EC:3.2.1.-.

Gylcosyl hydrolase family 115 C-terminal domain. This domain is found at the C-terminus of glycosyl hydrolase family 115 proteins. This domain has a beta-sandwich fold.

Bacteroidetes-Associated Carbohydrate-binding (putative) Often N-terminal (BACON) domain. The BACON domain is found in diverse domain architectures and accociated with a wide variety of domains, including carbohydrate-active enzymes and proteases. It was named for its suggested function of carbohydrate binding; the latter was inferred from domain architectures, sequence conservation, and phyletic distribution. However, recent experimental data suggest that its primary function in Bacteroides ovatus endo-xyloglucanase BoGH5A is to distance the catalytic module from the cell surface and confer additional mobility to the catalytic domain for attack of the polysaccharide. No evidence for a direct role in carbohydrate binding could be found in that case. The large majority of BACON domains are found in Bacteroidetes.

Viral BACON domain. This family represents a distinct class of BACON domains found in crAss-like phages, the most common viral family in the human gut, in which they are found in tail fiber genes. This suggests they may play a role in phage-host interactions.

Putative binding domain, N-terminal. The BACON (Bacteroidetes-Associated Carbohydrate-binding Often N-terminal) domain is an all-beta domain found in diverse architectures, principally in combination with carbohydrate-active enzymes and proteases. These architectures suggest a carbohydrate-binding function which is also supported by the nature of BACON's few conserved amino-acids. The phyletic distribution of BACON and other data tentatively suggest that it may frequently function to bind mucin. Further work with the characterized structure of a member of glycoside hydrolase family 5 enzyme, Structure 3ZMR, has found no evidence for carbohydrate-binding for this domain.

Crystalstructure of GH115 enzyme AxyAgu115A from Amphibacillus xylanus [Amphibacillus xylanus NBRC 15112],6NPS_B Crystal structure of GH115 enzyme AxyAgu115A from Amphibacillus xylanus [Amphibacillus xylanus NBRC 15112]

Crystalstructure of a five-domain GH115 alpha-Glucuronidase from the Marine Bacterium Saccharophagus degradans 2-40T [Saccharophagus degradans 2-40],4ZMH_B Crystal structure of a five-domain GH115 alpha-Glucuronidase from the Marine Bacterium Saccharophagus degradans 2-40T [Saccharophagus degradans 2-40]

ChainA, xylan alpha-1,2-glucuronidase [uncultured bacterium]

Evidencethat GH115 alpha-glucuronidase activity is dependent on conformational flexibility [Bacteroides ovatus],4C90_B Evidence that GH115 alpha-glucuronidase activity is dependent on conformational flexibility [Bacteroides ovatus],4C91_A Evidence that GH115 alpha-glucuronidase activity is dependent on conformational flexibility [Bacteroides ovatus],4C91_B Evidence that GH115 alpha-glucuronidase activity is dependent on conformational flexibility [Bacteroides ovatus]

ChainA, xylan alpha-1,2-glucuronidase [uncultured bacterium]