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Literature summary extracted from

  • Norman, J.M.; Bunny, K.L.; Giffard, P.M.
    Characterization of levJ, a sucrase/fructanase-encoding gene from Actinomyces naeslundii T14V, and comparison of its product with other sucrose-cleaving enzymes (1995), Gene, 152, 93-98.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.2.1.48 gene levJ from a library of T14V DNA constructed in plasmid pUC18, pPNG102 contains the ORF for the sucrase polypeptide Actinomyces naeslundii
3.2.1.80 expression in Escherichia coli Actinomyces naeslundii

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.48 99320
-
gene coding sucrase cloned in pPNG102 contains a ORF which defines a polypeptide of 99319 Da, the sequence shows similarity to previously sequenced sucrose-hydrolyzing enzymes Actinomyces naeslundii

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.2.1.48 maltose + H2O Actinomyces naeslundii
-
2 glucose
-
?
3.2.1.48 maltose + H2O Actinomyces naeslundii T14V
-
2 glucose
-
?
3.2.1.48 sucrose + H2O Actinomyces naeslundii
-
D-glucose + D-fructose
-
?
3.2.1.48 sucrose + H2O Actinomyces naeslundii T14V
-
D-glucose + D-fructose
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.48 Actinomyces naeslundii
-
T14V
-
3.2.1.48 Actinomyces naeslundii T14V
-
T14V
-
3.2.1.80 Actinomyces naeslundii
-
T14V
-
3.2.1.80 Actinomyces naeslundii T14V
-
T14V
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.48 inulin + H2O
-
Actinomyces naeslundii ?
-
?
3.2.1.48 inulin + H2O
-
Actinomyces naeslundii T14V ?
-
?
3.2.1.48 levan + H2O
-
Actinomyces naeslundii ?
-
?
3.2.1.48 levan + H2O
-
Actinomyces naeslundii T14V ?
-
?
3.2.1.48 maltose + H2O
-
Actinomyces naeslundii 2 glucose
-
?
3.2.1.48 maltose + H2O
-
Actinomyces naeslundii T14V 2 glucose
-
?
3.2.1.48 raffinose + H2O
-
Actinomyces naeslundii ?
-
?
3.2.1.48 raffinose + H2O
-
Actinomyces naeslundii T14V ?
-
?
3.2.1.48 sucrose + H2O
-
Actinomyces naeslundii D-glucose + D-fructose
-
?
3.2.1.48 sucrose + H2O
-
Actinomyces naeslundii T14V D-glucose + D-fructose
-
?
3.2.1.80 inulin + H2O
-
Actinomyces naeslundii D-fructose + ?
-
?
3.2.1.80 levan + H2O
-
Actinomyces naeslundii D-fructose + ?
-
?
3.2.1.80 raffinose + H2O
-
Actinomyces naeslundii D-fructose + alpha-D-galactopyranosyl-1,6-alpha-D-glucopyranoside
-
?
3.2.1.80 sucrose + H2O
-
Actinomyces naeslundii D-fructose + D-glucose
-
?