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Literature summary for 1.2.1.16 extracted from

  • Tokunaga, M.; Nakano, Y.; Kitaoka, S.
    Separation and properties of the NAD-linked and NADP-linked isozymes of succinic semialdehyde dehydrogenase in Euglena gracilis z (1976), Biochim. Biophys. Acta, 429, 55-62.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
sulfhydryl reagents beta-mercaptoethanol and dithiotreitol activate Euglena gracilis

General Stability

General Stability Organism
ethyleneglycol, 30%, stabilizes Euglena gracilis
glycerol, 30%, stabilizes Euglena gracilis

Inhibitors

Inhibitors Comment Organism Structure
5,5'-dithiobis(2-nitrobenzoate)
-
Euglena gracilis
glyoxylate
-
Euglena gracilis
N-ethylmaleimide
-
Euglena gracilis
p-chloromercuribenzoate
-
Euglena gracilis
potassium phosphate buffer
-
Euglena gracilis
Zn2+
-
Euglena gracilis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.038
-
NADP+
-
Euglena gracilis
1.06
-
succinate semialdehyde
-
Euglena gracilis

Metals/Ions

Metals/Ions Comment Organism Structure
K+ slight activation Euglena gracilis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
150000
-
gel filtration Euglena gracilis

Organism

Organism UniProt Comment Textmining
Euglena gracilis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
ammonium sulfate fractionation and DEAE-cellulose Euglena gracilis

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
7.94
-
-
Euglena gracilis

Storage Stability

Storage Stability Organism
5°C, complete inactivation after 2 days Euglena gracilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
malonic semialdehyde + NADP+ + H2O hydrolyzed at 8.7% the rate of succinate semialdehyde Euglena gracilis malonate + NADPH + H+
-
?
succinate semialdehyde + NADP+ + H2O
-
Euglena gracilis succinate + NADPH + H+
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
35 45
-
Euglena gracilis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60
-
up to, in presence of 30% glycerol Euglena gracilis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.7
-
-
Euglena gracilis

pH Range

pH Minimum pH Maximum Comment Organism
7.5 9.5
-
Euglena gracilis

Cofactor

Cofactor Comment Organism Structure
NADP+ specific for Euglena gracilis