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Literature summary for 2.4.1.5 extracted from

  • Monchois, V.; Remaud-Simeon, M.; Russell, R.R.B.; Monsan, P.; Willemot, R.M.
    Characterization of Leuconostoc mesenteroides NRRL B-512F dextransucrase (DSRS) and identification of amino-acid residues playing a key role in enzyme activity (1997), Appl. Microbiol. Biotechnol., 48, 465-472.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Leuconostoc mesenteroides

Protein Variants

Protein Variants Comment Organism
D511N mutant protein shows no dextran formation Leuconostoc mesenteroides
D513N mutant enzyme shows reduced dextran formation Leuconostoc mesenteroides
D551N mutant protein shows no dextran formation Leuconostoc mesenteroides
H161R mutant protein retains a very low dextran synthesis activity Leuconostoc mesenteroides

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
26
-
sucrose
-
Leuconostoc mesenteroides

Organism

Organism UniProt Comment Textmining
Leuconostoc mesenteroides
-
NRRl B-512(F)
-
Leuconostoc mesenteroides NRRl B-512(F)
-
NRRl B-512(F)
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
sucrose + (1,6-alpha-D-glucosyl)n
-
Leuconostoc mesenteroides D-fructose + (1,6-alpha-D-glucosyl)n+1
-
?
sucrose + (1,6-alpha-D-glucosyl)n
-
Leuconostoc mesenteroides NRRl B-512(F) D-fructose + (1,6-alpha-D-glucosyl)n+1
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
-
Leuconostoc mesenteroides

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.2
-
-
Leuconostoc mesenteroides