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Literature summary extracted from

  • Lunsford, R.; Macrina, F.
    Molecular cloning and characterization of scrB, the structural gene for the Streptococcus mutans phosphoenolpyruvate-dependent sucrose phosphotransferase system sucrose-6-phosphate hydrolase (1986), J. Bacteriol., 166, 426-434.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.2.1.B3 expression in Escherichia coli Streptococcus mutans serotype c

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.B3 0.08
-
 beta-D-fructofuranosyl 6-O-phosphono-alpha-D-glucopyranoside pH 7.1, 37°C Streptococcus mutans serotype c

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.B3 57000
-
-
 Streptococcus mutans serotype c

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.B3 Streptococcus mutans serotype c P13522
-
-
3.2.1.B3 Streptococcus mutans serotype c UA159 P13522
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.B3 beta-D-fructofuranosyl 6-O-phosphono-alpha-D-glucopyranoside + H2O
-
 Streptococcus mutans serotype c alpha-D-glucose 6-phosphate + beta-D-fructose
-
 ?
3.2.1.B3 beta-D-fructofuranosyl 6-O-phosphono-alpha-D-glucopyranoside + H2O
-
 Streptococcus mutans serotype c UA159 alpha-D-glucose 6-phosphate + beta-D-fructose
-
 ?

Subunits

EC Number Subunits Comment Organism
3.2.1.B3 ? x * 57000, recombinant ScrB Streptococcus mutans serotype c
3.2.1.B3 More in wild-type Streptococcus mutans, the protein is present as a 43,000-Mr species Streptococcus mutans serotype c

Synonyms

EC Number Synonyms Comment Organism
3.2.1.B3 scrB sucrose-6-phosphate hydrolase component of the Streptococcus mutans phosphoenolpyruvate-dependent sucrose phosphotransferase system Streptococcus mutans serotype c

General Information

EC Number General Information Comment Organism
3.2.1.B3 physiological function scrB-defective strains exhibit sucrose sensitivity Streptococcus mutans serotype c