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Literature summary for 2.4.1.125 extracted from

  • Tsumori, H.; Shimamura, A.; Mukasa, H.
    Purification and properties of extracellular glucosyltransferases from Streptococcus mutans serotype a (1983), J. Gen. Microbiol., 129, 3251-3259.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.3
-
sucrose pH 6.5, 37°C Streptococcus mutans

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
Streptococcus mutans
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
161000
-
1 * 161000, enzyme I, SDS-PAGE Streptococcus mutans
174000
-
1 * 174000, enzyme II, SDS-PAGE Streptococcus mutans

Organism

Organism UniProt Comment Textmining
Streptococcus mutans
-
HS6, serotype a
-

Purification (Commentary)

Purification (Comment) Organism
2 isoenzymes: I and II Streptococcus mutans
HS6, serotype a Streptococcus mutans

Source Tissue

Source Tissue Comment Organism Textmining
culture supernatant
-
Streptococcus mutans
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
5.86 6.8
-
Streptococcus mutans

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
sucrose + (1,6-alpha-D-glucosyl)n also transfers glucosyl residues to the 3-position on glucose residues in glucans, producing a highly-branched 1,6-alpha-D-glucan Streptococcus mutans D-fructose + (1,6-alpha-D-glucosyl)n+1 1,6-alpha-D-glucan with 20 and 24.5 mol% 1,3,6-branch points ?

Subunits

Subunits Comment Organism
monomer 1 * 161000, enzyme I, SDS-PAGE Streptococcus mutans
monomer 1 * 174000, enzyme II, SDS-PAGE Streptococcus mutans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5
-
-
Streptococcus mutans