Cloned (Comment) | Organism |
---|---|
expression in Escherichia coli. Introduction of afcB gene into the Bacterioides longum 105-A strain, which has no intrinsic alpha-L-fucosidase. The transformant is able to utilize 3-fucosyllactose and lacto-N-fucopentaose II as the sole carbon source | Bifidobacterium bifidum |
Protein Variants | Comment | Organism |
---|---|---|
additional information | introduction of afcB gene into the Bacterioides longum 105-A strain, which has no intrinsic alpha-L-fucosidase. The transformant is able to utilize 3-fucosyllactose and lacto-N-fucopentaose II as the sole carbon source | Bifidobacterium bifidum |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Co2+ | 40% residual activity | Bifidobacterium bifidum | |
Cu2+ | complete inactiviation | Bifidobacterium bifidum |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
160000 | - |
2 * 160000, SDS-PAGE | Bifidobacterium bifidum |
350000 | - |
gel filtration | Bifidobacterium bifidum |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | Bifidobacterium bifidum | Bifidobacteria are predominant bacteria present in the intestines of breast-fed infants and offer important health benefits for the host. alpha-L-Fucosidase AfcB play essential roles in degrading alpha1,3/4-fucosylated milk oligosaccharides, respectively, and also glycoconjugates, in the gastrointestinal tracts | ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Bifidobacterium bifidum | - |
JCM1254 | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
L-Fuc-alpha-(1->2)-D-Gal-beta-(1->3)-[L-Fuc-alpha-(1->4)]-GlcNAc + H2O | i.e. Lewis b tetrasaccharide, 14% of the activity with 3-fucosyllactose | Bifidobacterium bifidum | L-fucose + L-Fuc-alpha-(1->2)-D-Gal-beta-(1->3)-D-GlcNAc | - |
? | |
L-Fuc-alpha-(1->2)-D-Gal-beta-(1->4)-[L-Fuc-alpha-(1->3)]-D-GlcNAc + H2O | i.e. Lewis y tetrasaccharide, 128% of the activity with 3-fucosyllactose | Bifidobacterium bifidum | L-fucose + L-Fuc-alpha-(1->2)-D-Gal-beta-(1->4)-D-GlcNAc | - |
? | |
L-Fuc-alpha-(1->3)-[D-Gal-beta-(1->4)]-D-Glc + H2O | i.e. 3-fucosyllactose | Bifidobacterium bifidum | L-fucose + D-Gal-beta-(1->4)-D-Glc | - |
? | |
L-Fuc-alpha-(1->3)-[D-Gal-beta-(1->4)]-D-GlcNAc + H2O | i.e. Lewis a trisaccharide, 160% of the activity with 3-fucosyllactose | Bifidobacterium bifidum | L-fucose + D-Gal-beta-(1->4)-D-GlcNAc | - |
? | |
L-Fuc-alpha-(1->3)-[D-Gal-beta-(1->4)]-D-GlcNAc-beta-(1->3)-D-Gal-beta-(1->4)-D-Glc + H2O | i.e. lacto-N-fucopentaose III, 159% of the activity with 3-fucosyllactose | Bifidobacterium bifidum | L-fucose + D-Gal-beta-(1->4)-D-GlcNAc-beta-(1->3)-D-Gal-beta-(1->4)-D-Glc | - |
? | |
L-Fuc-alpha-(1->4)-D-Gal-beta-(1->3)-D-GlcNAc-beta-(1->3)-D-Gal-beta-(1->4)-D-Glc + H2O | i.e. lacto-N-fucopentaose II, 186% of the activity with 3-fucosyllactose | Bifidobacterium bifidum | L-fucose + | - |
? | |
L-Fuc-alpha-(1->4)-[D-Gal-beta-(1->3)]-D-GlcNAc + H2O | i.e. Lewis a trisaccharide, 166% of the activity with 3-fucosyllactose | Bifidobacterium bifidum | L-fucose + D-Gal-beta-(1->3)-D-GlcNAc | - |
? | |
additional information | Bifidobacteria are predominant bacteria present in the intestines of breast-fed infants and offer important health benefits for the host. alpha-L-Fucosidase AfcB play essential roles in degrading alpha1,3/4-fucosylated milk oligosaccharides, respectively, and also glycoconjugates, in the gastrointestinal tracts | Bifidobacterium bifidum | ? | - |
? | |
additional information | enzyme specifically releases alpha-1,3- and alpha-1,4-linked fucosyl residues from 3-fucosyllactose, various Lewis blood group substances, and lacto-N-fucopentaose II and III. The enzyme does not act on glycoconjugates containing alpha-1,2-fucosyl residue or on synthetic alpha-fucoside, i.e. p-nitrophenyl-alpha-L-fucoside | Bifidobacterium bifidum | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | 2 * 160000, SDS-PAGE | Bifidobacterium bifidum |
Synonyms | Comment | Organism |
---|---|---|
AfcB | - |
Bifidobacterium bifidum |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
45 | - |
- |
Bifidobacterium bifidum |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
50 | - |
stable below, pH 6.0 | Bifidobacterium bifidum |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
5.5 | 6 | - |
Bifidobacterium bifidum |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
3.5 | 8 | stable | Bifidobacterium bifidum |
General Information | Comment | Organism |
---|---|---|
physiological function | Bifidobacteria are predominant bacteria present in the intestines of breast-fed infants and offer important health benefits for the host. alpha-L-Fucosidase AfcB play essential roles in degrading alpha1,3/4-fucosylated milk oligosaccharides, respectively, and also glycoconjugates, in the gastrointestinal tracts | Bifidobacterium bifidum |
kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.46 | - |
L-Fuc-alpha-(1->3)-[D-Gal-beta-(1->4)]-D-Glc | pH 6.0, 37°C | Bifidobacterium bifidum |