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Literature summary for 6.3.2.1 extracted from

  • Miyatake, K.; Nakano, Y.; Kitaoka, S.
    Some properties of pantothenate synthetase partially purified from Escherichia coli B (1975), Bull. Univ. Osaka Prefect, 27, 57-67.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
1,10-phenanthroline
-
Escherichia coli
4-aminobutanoate
-
Escherichia coli
5-Aminopentanoate
-
Escherichia coli
Ag+
-
Escherichia coli
AMP
-
Escherichia coli
Asp uncompetitive Escherichia coli
Ca2+
-
Escherichia coli
Cu2+
-
Escherichia coli
cysteine weak Escherichia coli
diphosphate
-
Escherichia coli
DTT weak Escherichia coli
Fe2+
-
Escherichia coli
Hg2+
-
Escherichia coli
iodoacetate weak Escherichia coli
L-Ala
-
Escherichia coli
L-Val uncompetitive Escherichia coli
Li+
-
Escherichia coli
mercaptoethanol weak Escherichia coli
Mercaptoethanolamine weak Escherichia coli
Mercaptopurine weak Escherichia coli
Ni2+
-
Escherichia coli
pantothenic acid
-
Escherichia coli
Pb2+
-
Escherichia coli
PCMB
-
Escherichia coli
taurine
-
Escherichia coli
Zn2+
-
Escherichia coli

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.063
-
D-pantoate beta-alanine Escherichia coli
0.091
-
ATP
-
Escherichia coli
0.12
-
(R)-pantoate
-
Escherichia coli

Metals/Ions

Metals/Ions Comment Organism Structure
K+ Km: 5.5 mM Escherichia coli
Mg2+ divalent cation required, Mg2+ or Mn2+, Km: 2.0 mM. Optimal concentration: 10 mM, inhibition above Escherichia coli

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
69000
-
gel filtration Escherichia coli

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + (R)-pantoate + beta-alanine Escherichia coli formation of pantothenic acid, an important member of the B vitamins ?
-
?

Organism

Organism UniProt Comment Textmining
Escherichia coli
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Escherichia coli

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + (R)-pantoate + beta-alanine
-
Escherichia coli AMP + diphosphate + (R)-pantothenate
-
?
ATP + (R)-pantoate + beta-alanine formation of pantothenic acid, an important member of the B vitamins Escherichia coli ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
-
Escherichia coli

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
20 50 20°C: about 60% of maximal activity, 50°C, about 25% of maximal activity Escherichia coli

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
37
-
pH 5.0-10.0, 15 min stable Escherichia coli

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
10
-
-
Escherichia coli

pH Range

pH Minimum pH Maximum Comment Organism
8 12 about 50% of maximal activity at pH 8 and 12 Escherichia coli