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Literature summary for 2.4.1.90 extracted from

  • Nakazawa, K.; Furukawa, K.; Kobata, A.; Narimatsu, H.
    Characterization of a murine beta 1-4 galactosyltransferase expressed in COS-1 cells (1991), Eur. J. Biochem., 196, 363-368.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
alpha-lactalbumin stimulates transfer of galactose from UDPgalactose to N-acetylgalactosamine Mus musculus

Cloned(Commentary)

Cloned (Comment) Organism
expression in Cos-1 cells Mus musculus

Inhibitors

Inhibitors Comment Organism Structure
alpha-lactalbumin partially inhibits reaction with UDPgalactose and asialo-agalacto-transferrin Mus musculus
EDTA
-
Mus musculus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.024
-
UDPgalactose enzyme in pCMGT1-transfected cells Mus musculus
0.056
-
asialo-agalacto-transferrin enzyme in pCMGT1-transfected cells Mus musculus
1.9
-
N-acetylglucosamine enzyme in pCMGT1-transfected cells Mus musculus

Metals/Ions

Metals/Ions Comment Organism Structure
Mn2+ required Mus musculus
Mn2+ optimal concentration is 10 mM Mus musculus

Organism

Organism UniProt Comment Textmining
Mus musculus
-
-
-

Reaction

Reaction Comment Organism Reaction ID
UDP-alpha-D-galactose + N-acetyl-D-glucosamine = UDP + N-acetyllactosamine the sequences of cDNA isolated from mammary and F9 cell lines are identical, thus indicating that EC 2.4.1.38 and EC 2.4.1.90 are non-distinguishable Mus musculus

Source Tissue

Source Tissue Comment Organism Textmining
F9 cell
-
Mus musculus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
UDPgalactose + asialo-agalacto-transferrin transfer of galactose to N-acetylglucosamine residues of Asn-linked sugar chains of glycoproteins in a beta1-4linkage Mus musculus ?
-
?
UDPgalactose + glucose in presence of alpha-lactalbumin Mus musculus lactose + UDP
-
?
UDPgalactose + N-acetylglucosamine
-
Mus musculus UDP + N-acetyllactosamine
-
?