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Literature summary for 2.3.1.44 extracted from

  • Schauer, R.
    Sialic acids: metabolism of O-acetyl groups (1987), Methods Enzymol., 138, 611-626.
    View publication on PubMed

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
acetyl-CoA + N-acetylneuraminate Equus caballus the 4-O-acetyltransferase is specific for the hydroxyl group at C-4 of the pyranose ring of neuraminic acid CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate Equus asinus the 4-O-acetyltransferase is specific for the hydroxyl group at C-4 of the pyranose ring of neuraminic acid CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate Tachyglossus aculeatus the 4-O-acetyltransferase is specific for the hydroxyl group at C-4 of the pyranose ring of neuraminic acid CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate Equus caballus the 4-O-acetyl-group seems to be stable, as no conversion of this sialic acid to other O-acetylated species is observed CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate Equus asinus the 4-O-acetyl-group seems to be stable, as no conversion of this sialic acid to other O-acetylated species is observed CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate Tachyglossus aculeatus the 4-O-acetyl-group seems to be stable, as no conversion of this sialic acid to other O-acetylated species is observed CoA + N-acetyl-4-O-acetylneuraminate
-
r

Organism

Organism UniProt Comment Textmining
Equus asinus
-
-
-
Equus caballus
-
-
-
Tachyglossus aculeatus
-
australian monotreme echidna
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
assay method Equus caballus
additional information
-
assay method Equus asinus
additional information
-
assay method Tachyglossus aculeatus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
acetyl-CoA + N-acetylneuraminate the 4-O-acetyltransferase is specific for the hydroxyl group at C-4 of the pyranose ring of neuraminic acid Equus caballus CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate the 4-O-acetyltransferase is specific for the hydroxyl group at C-4 of the pyranose ring of neuraminic acid Equus asinus CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate the 4-O-acetyltransferase is specific for the hydroxyl group at C-4 of the pyranose ring of neuraminic acid Tachyglossus aculeatus CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate the 4-O-acetyl-group seems to be stable, as no conversion of this sialic acid to other O-acetylated species is observed Equus caballus CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate the 4-O-acetyl-group seems to be stable, as no conversion of this sialic acid to other O-acetylated species is observed Equus asinus CoA + N-acetyl-4-O-acetylneuraminate
-
r
acetyl-CoA + N-acetylneuraminate the 4-O-acetyl-group seems to be stable, as no conversion of this sialic acid to other O-acetylated species is observed Tachyglossus aculeatus CoA + N-acetyl-4-O-acetylneuraminate
-
r

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Equus caballus
37
-
assay at Equus asinus
37
-
assay at Tachyglossus aculeatus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
assay at Equus caballus
7.5
-
assay at Equus asinus
7.5
-
assay at Tachyglossus aculeatus