Cloned (Comment) | Organism |
---|---|
expression in Escherichia coli | Bifidobacterium bifidum |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Cu2+ | 5 mM, 30% residual activity | Bifidobacterium bifidum | |
additional information | not inhibitory: Ca2+, Zn2+, Co2+, Mn2+ and Mg2+ or EDTA | Bifidobacterium bifidum |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
extracellular | extracellular membrane-anchored protein | Bifidobacterium bifidum | - |
- |
membrane | extracellular membrane-anchored protein | Bifidobacterium bifidum | 16020 | - |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Bifidobacterium bifidum | N0DNS0 | bifunctional enzyme, glycoside hydrolase family 33 member. SiaBb1 preferentially hydrolyzes alpha2,3-linked sialic acid from sialoglycan, reaction of EC 3.2.1.18, and has an SGNH hydrolase domain with sialate-O-acetylesterase activity | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
4-nitrophenyl acetate + H2O | - |
Bifidobacterium bifidum | 4-nitrophenol + acetate | - |
? | |
5-N-acetyl-9-O-acetylneuraminic acid + H2O | - |
Bifidobacterium bifidum | 5-N-acetylneuraminic acid + acetate | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 1898000, calculated from sequence, xy * 190000, SDS-PAGE | Bifidobacterium bifidum |
Synonyms | Comment | Organism |
---|---|---|
SiaBb1 | - |
Bifidobacterium bifidum |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | 45 | - |
Bifidobacterium bifidum |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | - |
stable below | Bifidobacterium bifidum |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
4.5 | - |
- |
Bifidobacterium bifidum |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
6 | 9 | - |
Bifidobacterium bifidum |
General Information | Comment | Organism |
---|---|---|
physiological function | a SiaBb1 construct that lacks the SGNH hydrolase and Lam G domains cannot catalyze 4-nitrophenyl acetate hydrolysis, but retains sialidase activity | Bifidobacterium bifidum |