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Literature summary for 1.1.1.49 extracted from

  • Boonyuen, U.; Chamchoy, K.; Swangsri, T.; Saralamba, N.; Day, N.P.; Imwong, M.
    Detailed functional analysis of two clinical glucose-6-phosphate dehydrogenase (G6PD) variants, G6PDViangchan and G6PDViangchan+Mahidol: Decreased stability and catalytic efficiency contribute to the clinical phenotype (2016), Mol. Genet. Metab., 118, 84-91.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli BL21(DE3) cells Homo sapiens

Protein Variants

Protein Variants Comment Organism
additional information the kcat value of the mutant enzymes is markedly reduced, resulting in a 10 and 18fold reduction in catalytic efficiency for NADP+ catalysis for mutant G6PDViangchan and mutant G6PDViangchan+Mahidol, respectively Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
Trypsin after 2 h of trypsin digestion in the presence of 0.01 mM NADP+ the enzyme retains about 57% of its original activity Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0072
-
NADP+ at pH 8.0 and 37°C Homo sapiens
0.0478
-
D-glucose 6-phosphate at pH 8.0 and 37°C Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
D-glucose 6-phosphate + NADP+ Homo sapiens
-
6-phospho-D-glucono-1,5-lactone + NADPH + H+
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens P11413
-
-

Purification (Commentary)

Purification (Comment) Organism
HiTrap QXL column chromatography Homo sapiens

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0443
-
crude extract, at pH 8.0 and 37°C Homo sapiens
0.2282
-
purified enzyme, at pH 8.0 and 37°C Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-glucose 6-phosphate + NADP+
-
Homo sapiens 6-phospho-D-glucono-1,5-lactone + NADPH + H+
-
?

Synonyms

Synonyms Comment Organism
G6PD
-
Homo sapiens
glucose-6-phosphate dehydrogenase
-
Homo sapiens

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
47
-
the half-life temperature is 47°C Homo sapiens

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
247
-
NADP+ at pH 8.0 and 37°C Homo sapiens
247
-
D-glucose 6-phosphate at pH 8.0 and 37°C Homo sapiens

Cofactor

Cofactor Comment Organism Structure
NADP+
-
Homo sapiens

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
5200
-
D-glucose 6-phosphate at pH 8.0 and 37°C Homo sapiens
34300
-
NADP+ at pH 8.0 and 37°C Homo sapiens