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Literature summary for 2.4.1.74 extracted from

  • Nakahara, Y.; Okamoto, K.
    Unusual properties of the prespore-specific enzyme, UDP galactose:polysaccharide galactosyl transferase, of Dictyostelium discoideum (2004), J. Basic Microbiol., 44, 459-470.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
Polyethyleneglycol enhances activity Dictyostelium discoideum

General Stability

General Stability Organism
rapid loss of activity is prevented by the presence of albumin or Triton-X Dictyostelium discoideum

Inhibitors

Inhibitors Comment Organism Structure
ATP reversible, possibly regulates activity in vivo Dictyostelium discoideum
CuCl2 5-10 mM, more than 90% inhibition Dictyostelium discoideum
Lead acetate 5-10 mM, more than 90% inhibition Dictyostelium discoideum
p-chloromercuribenzoate 5-10 mM, more than 90% inhibition Dictyostelium discoideum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.006
-
UDP-galactose
-
Dictyostelium discoideum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
200000
-
non-denaturing PAGE Dictyostelium discoideum

Organism

Organism UniProt Comment Textmining
Dictyostelium discoideum
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Dictyostelium discoideum

Source Tissue

Source Tissue Comment Organism Textmining
prespore specifically localized in. Activity sharply changes in response to differentiation and dedifferentiation Dictyostelium discoideum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.00000023
-
-
Dictyostelium discoideum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
UDP-galactose + glycosaminoglycan
-
Dictyostelium discoideum UDP + D-galactosylglycosaminoglycan
-
?

Synonyms

Synonyms Comment Organism
UDP galactose:polysaccharide galactosyl transferase
-
Dictyostelium discoideum

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
-
21 reaction proceeds faster at 0°C than at 21°C Dictyostelium discoideum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Dictyostelium discoideum

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
2
-
ATP
-
Dictyostelium discoideum

pI Value

Organism Comment pI Value Maximum pI Value
Dictyostelium discoideum isoelectric focusing
-
7