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Literature summary for 4.2.1.118 extracted from

  • Stroeman, P.; Reinert, W.R.; Giles, N.H.
    Purification and characterization of 3-dehydroshikimate dehydratase, an enzyme in the inducible quinic acid catabolic pathway of Neurospora crassa (1978), J. Biol. Chem., 253, 4593-4598.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
EDTA presence of Mg2+ reactivates Neurospora crassa
K+ weak Neurospora crassa
Na+ weak Neurospora crassa
NH4+ weak Neurospora crassa

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.00059
-
3-dehydroshikimate pH 7.5, 37°C Neurospora crassa

Metals/Ions

Metals/Ions Comment Organism Structure
Ba2+ activation Neurospora crassa
Co2+ activation Neurospora crassa
Mg2+ up to 35fold activation. Presence at 25 mM protects from thermal inactivation Neurospora crassa
Mn2+ activation Neurospora crassa
Mo2+ activation Neurospora crassa

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
36500
-
gel filtration Neurospora crassa
37000
-
SDS-PAGE Neurospora crassa

Organism

Organism UniProt Comment Textmining
Neurospora crassa
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Neurospora crassa

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
257
-
pH 7.5, 37°C Neurospora crassa

Storage Stability

Storage Stability Organism
-20°C, loss of 50% of activity within 3 days Neurospora crassa
0-2°C, presence of 25 mM Mg2+, one week, less than 50% loss of activity Neurospora crassa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3-dehydroshikimate
-
Neurospora crassa protocatechuate + H2O
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
47
-
half-life below 12 min, presence of 25 mM Mg2+ extends the half-life to 220 min Neurospora crassa

pI Value

Organism Comment pI Value Maximum pI Value
Neurospora crassa minor component, and 5.0, minor component
-
4.8
Neurospora crassa major component, and 4.8, minor component
-
5