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Literature summary for 1.5.1.34 extracted from

  • Scrimgeour, K.G.; Cheema-Dhadli, S.
    Dihydropteridine reductase from sheep brain (1987), Methods Enzymol., 142, 127-132.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
HgCl2 0.002 mM, 50% inhibition, enzyme from brain Ovis aries
NAD+ competitive vs. NADH Ovis aries
p-chloromercuribenzoate 0.2 mM, 50% inhibition, enzyme from brain Ovis aries

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.01
-
quinonoid 7,8-(6H)-dihydropterin enzyme from brain Ovis aries
0.022
-
NADH enzyme from brain Ovis aries

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
27000
-
2 * 27000, brain, SDS-PAGE Ovis aries
47000
-
gel filtration Ovis aries

Organism

Organism UniProt Comment Textmining
Ovis aries
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Ovis aries

Source Tissue

Source Tissue Comment Organism Textmining
brain
-
Ovis aries
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
610
-
enzyme from brain Ovis aries

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
quinonoid 7,8-(6H)-dihydropterin + NADPH + H+
-
Ovis aries 5,6,7,8-tetrahydropterin + NADP+
-
r

Subunits

Subunits Comment Organism
dimer 2 * 27000, brain, SDS-PAGE Ovis aries

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Ovis aries