Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 3.1.1.53 extracted from

  • Ashida, H.; Tanigawa, K.; Kiyohara, M.; Katoh, T.; Katayama, T.; Yamamoto, K.
    Bifunctional properties and characterization of a novel sialidase with esterase activity from Bifidobacterium bifidum (2018), Biosci. Biotechnol. Biochem., 82, 2030-2039 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Bifidobacterium bifidum

Inhibitors

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

Localization Comment Organism GeneOntology No. Textmining
extracellular extracellular membrane-anchored protein Bifidobacterium bifidum
-
-
membrane extracellular membrane-anchored protein Bifidobacterium bifidum 16020
-

Organism

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 and Products (Substrate)

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

Subunits Comment Organism
? x * 1898000, calculated from sequence, xy * 190000, SDS-PAGE Bifidobacterium bifidum

Synonyms

Synonyms Comment Organism
SiaBb1
-
Bifidobacterium bifidum

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
40 45
-
Bifidobacterium bifidum

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40
-
stable below Bifidobacterium bifidum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5
-
-
Bifidobacterium bifidum

pH Stability

pH Stability pH Stability Maximum Comment Organism
6 9
-
Bifidobacterium bifidum

General Information

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