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Literature summary for 5.1.3.14 extracted from

  • Sommar, K.M.; Ellis, D.B.
    Uridine diphosphate N-acetyl-D-glucosamine 2-epimerase from rat liver. I. Catalytic and regulatory properties (1972), Biochim. Biophys. Acta, 268, 581-589.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
CMP-N-acetylneuraminic acid
-
Rattus norvegicus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.2
-
UDP-N-acetyl-D-glucosamine
-
Rattus norvegicus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
UDP-N-acetyl-D-glucosamine Rattus norvegicus initial enzyme responsible for the biosynthesis of CMP-N-acetylneuraminic acid ?
-
?

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Rattus norvegicus

Reaction

Reaction Comment Organism Reaction ID
UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-mannosamine products: UDP + N-acetyl-D-mannosamine Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.29
-
-
Rattus norvegicus

Storage Stability

Storage Stability Organism
-10°C, overnight, in a saturated (NH4)2SO4 solution, approximately 20% loss of activity Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
UDP-N-acetyl-D-glucosamine
-
Rattus norvegicus UDP-N-acetyl-D-mannosamine
-
?
UDP-N-acetyl-D-glucosamine initial enzyme responsible for the biosynthesis of CMP-N-acetylneuraminic acid Rattus norvegicus ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.1
-
and a second optimum at pH 7.9 Rattus norvegicus
7.9
-
and a second optimum at pH 7.1 Rattus norvegicus

pH Range

pH Minimum pH Maximum Comment Organism
6.5 8.6 6.5: about 30% of maximal activity, 8.6: about 65% of maximal activity Rattus norvegicus