Bacterial alpha-L-rhamnosidase 6 hairpin glycosidase domain. This family consists of bacterial rhamnosidase A and B enzymes. L-Rhamnose is abundant in biomass as a common constituent of glycolipids and glycosides, such as plant pigments, pectic polysaccharides, gums or biosurfactants. Some rhamnosides are important bioactive compounds. For example, terpenyl glycosides, the glycosidic precursor of aromatic terpenoids, act as important flavouring substances in grapes. Other rhamnosides act as cytotoxic rhamnosylated terpenoids, as signal substances in plants or play a role in the antigenicity of pathogenic bacteria.

Amylo-alpha-1,6-glucosidase. This family includes human glycogen branching enzyme AGL. This enzyme contains a number of distinct catalytic activities. It has been shown for the yeast homolog GDB1 that mutations in this region disrupt the enzymes Amylo-alpha-1,6-glucosidase (EC:3.2.1.33).

Penicillin-Binding Protein C-terminus Family. This conserved region of approximately 90 residues is found in a sub-group of bacterial Penicillin-Binding Proteins (PBPs). A variable length loop region separates this region from the transpeptidase unit (pfam00905). It is predicted by PROF to be an all beta fold.

Glycosyl hydrolase 36 superfamily, catalytic domain. This is the catalytic region of the superfamily of enzymes referred to as GH36. UniProtKB:Q76IQ9 is a chitobiose phosphorylase that catalyzes the reversible phosphorolysis of chitobiose into alpha-GlcNAc-1-phosphate and GlcNAc with inversion of the anomeric configuration. The full-length enzyme comprises a beta sandwich domain and an (alpha/alpha)(6) barrel domain. The alpha-helical barrel component of the domain, this family, is the catalytic region.

Cellobiose phosphorylase [Carbohydrate transport and metabolism].

Crystalstructure of a putative alpha-rhamnosidase from Bacteroides thetaiotaomicron [Bacteroides thetaiotaomicron VPI-5482]

ChainA, Alpha-L-rhamnosidase [Klebsiella oxytoca],4XHC_B Chain B, Alpha-L-rhamnosidase [Klebsiella oxytoca]