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Literature summary for 4.1.1.15 extracted from

  • Satyanarayan, V.; Nair, P.M.
    Purification and characterization of glutamate decarboxylase from Solanum tuberosum (1985), Eur. J. Biochem., 150, 53-60.
    View publication on PubMed

General Stability

General Stability Organism
inactivation by repeated freezing and thawing Solanum tuberosum

Inhibitors

Inhibitors Comment Organism Structure
3-Mercaptopropionic acid
-
Solanum tuberosum
5,5'-dithiobis(2-nitrobenzoate)
-
Solanum tuberosum
Cu2+
-
Solanum tuberosum
Fe2+
-
Solanum tuberosum
Hg2+
-
Solanum tuberosum
L-Thiomalic acid
-
Solanum tuberosum
NEM
-
Solanum tuberosum
p-hydroxymercuribenzoate
-
Solanum tuberosum
Thioglycollic acid
-
Solanum tuberosum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
5.6
-
L-Glu
-
Solanum tuberosum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
43000
-
2 * 43000, SDS-PAGE Solanum tuberosum
91000
-
gel filtration Solanum tuberosum

Organism

Organism UniProt Comment Textmining
Solanum tuberosum
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Solanum tuberosum

Source Tissue

Source Tissue Comment Organism Textmining

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
148.4
-
-
Solanum tuberosum

Storage Stability

Storage Stability Organism
-20°C, stable for up to 1 month Solanum tuberosum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-Glu
-
Solanum tuberosum 4-Aminobutanoate + CO2
-
?

Subunits

Subunits Comment Organism
dimer 2 * 43000, SDS-PAGE Solanum tuberosum

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
-
Solanum tuberosum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.8
-
-
Solanum tuberosum

pH Range

pH Minimum pH Maximum Comment Organism
4.5 7 about 25% of maximal activity at pH 4.5 and pH 7.0 Solanum tuberosum

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate Km: 0.02 mM Solanum tuberosum
pyridoxal 5'-phosphate contains 2 mol of pyridoxal 5'-phosphate per mol of enzyme Solanum tuberosum