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Literature summary for 5.1.3.37 extracted from

  • Jerga, A.; Raychaudhuri, A.; Tipton, P.A.
    Pseudomonas aeruginosa C5-mannuronan epimerase: steady-state kinetics and characterization of the product (2006), Biochemistry, 45, 552-560.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
erxpression in Escherichia coli Pseudomonas aeruginosa

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information the Km decreases from 80 microM for substrate containing fewer than 15 residues to 4 microM for substrate containing over 100 residues, pH 7.3 Pseudomonas aeruginosa

Metals/Ions

Metals/Ions Comment Organism Structure
additional information no Ca2+ ions required for activity, and the Ca2+-alginate complex is not a substrate for the enzyme Pseudomonas aeruginosa

Organism

Organism UniProt Comment Textmining
Pseudomonas aeruginosa
-
-
-

Storage Stability

Storage Stability Organism
-80 °C, 10% (v/v) glycerol, retains full catalytic activity for at least two months Pseudomonas aeruginosa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information the minimal substrate contains 9 monosaccharide residues. Tracts of adjacent guluronate residues are readily formed. The reaction reaches an apparent equilibrium when the guluronate composition of the polymer is 75% Pseudomonas aeruginosa ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Pseudomonas aeruginosa

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
additional information
-
additional information the maximum velocity of the reaction increases from 0.0018 per s to 0.0218 per s as the substrate size increases from 10 to 20 residues, and no additional increase in kcat is observed for substrates up to 100 residues in length, pH 7.3, temperature not specified in the publication Pseudomonas aeruginosa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.3
-
assay at Pseudomonas aeruginosa