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Literature summary for 2.4.2.7 extracted from

  • Moffatt, B.A.; Somerville, C.R.
    Purification of adenine phosphoribosyltransferase from Brassica juncea (1990), Arch. Biochem. Biophys., 283, 484-490.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
N-ethylmaleimide
-
Brassica juncea
p-hydroxymercuribenzoate DTT Brassica juncea
sulfhydryl reagents
-
Brassica juncea

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0038
-
adenine
-
Brassica juncea
0.015
-
5-phospho-alpha-D-ribose 1-diphosphate
-
Brassica juncea

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Brassica juncea
Mg2+ 3 mM at 60°C, at 37°C activity varies little in the range 3-50 mM MgCl2 Brassica juncea

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
27000
-
2 * 27000, SDS-PAGE Brassica juncea
54000
-
gel filtration Brassica juncea

Organism

Organism UniProt Comment Textmining
Brassica juncea
-
cv. Green Wave
-

Purification (Commentary)

Purification (Comment) Organism
-
Brassica juncea

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Brassica juncea
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
9.15
-
-
Brassica juncea

Storage Stability

Storage Stability Organism
-70°C, 50 mM Tris-HCl, pH 7.4, 5 mM MgCl2, 10 mM KCl, 10% glycerol, stable Brassica juncea

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
adenine + 5-phospho-alpha-D-ribose 1-diphosphate
-
Brassica juncea AMP + diphosphate
-
?

Subunits

Subunits Comment Organism
dimer 2 * 27000, SDS-PAGE Brassica juncea

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Brassica juncea
60
-
-
Brassica juncea

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
9.2
-
-
Brassica juncea