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Literature summary for 2.4.2.19 extracted from

  • Okuno, E.; Schwarcz, R.
    Purification of quinolinic acid phosphoribosyltransferase from rat liver and brain (1985), Biochim. Biophys. Acta, 841, 112-119.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Phthalic acid
-
Rattus norvegicus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.012
-
quinolinate enzyme from liver and brain Rattus norvegicus
0.022
-
5-phospho-alpha-D-ribose 1-diphosphate enzyme from liver Rattus norvegicus
0.023
-
5-phospho-alpha-D-ribose 1-diphosphate enzyme from brain Rattus norvegicus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
32000
-
5 * 32000, SDS-PAGE Rattus norvegicus
160000
-
sucrose density gradient centrifugation, gel filtration Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
brain
-
Rattus norvegicus
-
liver
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.01235
-
-
Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
pyridine-2,3-dicarboxylate + 5-phospho-alpha-D-ribose 1-diphosphate
-
Rattus norvegicus nicotinate D-ribonucleotide + diphosphate + CO2
-
?

Subunits

Subunits Comment Organism
pentamer 5 * 32000, SDS-PAGE Rattus norvegicus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
80
-
3 min, 50% loss of activity Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5 7
-
Rattus norvegicus

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.0014
-
Phthalic acid
-
Rattus norvegicus