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Literature summary extracted from

  • Murakoshi, I.; Ikegami, F.; Ookawa, N.; Ariki, T.; Haginawa, J.; Kuo, Y.H.; Lambein, F.
    Biosynthesis of the uraclylalanine willdardiine and isowillardiine in higher plants (1978), Phytochemistry, 17, 1571-1576.
No PubMed abstract available

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.5.1.53 hydroxylamine 100 mM, complete Albizia julibrissin
2.5.1.53 hydroxylamine 100 mM, complete Fagus crenata
2.5.1.53 hydroxylamine 100 mM, complete Lathyrus odoratus
2.5.1.53 hydroxylamine 100 mM, complete Leucaena leucocephala
2.5.1.53 hydroxylamine 100 mM, complete Pisum sativum
2.5.1.53 KCN 100 mM, complete Albizia julibrissin
2.5.1.53 KCN 100 mM, complete Fagus crenata
2.5.1.53 KCN 100 mM, complete Lathyrus odoratus
2.5.1.53 KCN 100 mM, complete Leucaena leucocephala
2.5.1.53 KCN 100 mM, complete Pisum sativum
2.5.1.53 pyridoxal 5'-phosphate activation at 0.06 mg/ml Albizia julibrissin
2.5.1.53 pyridoxal 5'-phosphate activation at 0.06 mg/ml Fagus crenata
2.5.1.53 pyridoxal 5'-phosphate activation at 0.06 mg/ml Lathyrus odoratus
2.5.1.53 pyridoxal 5'-phosphate activation at 0.06 mg/ml Leucaena leucocephala
2.5.1.53 pyridoxal 5'-phosphate 0.25 mg/ml, 12% inhibition of willardine synthase and 4% inhibition of isowillardine synthase; activation at 0.06 mg/ml Pisum sativum
2.5.1.53 Uracil
-
Pisum sativum

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.5.1.53 3.3
-
Uracil synthesis of isowillardiine Pisum sativum
2.5.1.53 10
-
Uracil willardiine synthesis Pisum sativum

Organism

EC Number Organism UniProt Comment Textmining
2.5.1.53 Albizia julibrissin
-
-
-
2.5.1.53 Fagus crenata
-
-
-
2.5.1.53 Lathyrus odoratus
-
-
-
2.5.1.53 Leucaena leucocephala
-
-
-
2.5.1.53 no activity in Citrullus vulgaris
-
-
-
2.5.1.53 no activity in Fagus japonica
-
-
-
2.5.1.53 no activity in Lupinus luteus
-
-
-
2.5.1.53 Pisum sativum
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.5.1.53 seedling
-
Albizia julibrissin
-
2.5.1.53 seedling
-
Leucaena leucocephala
-
2.5.1.53 seedling
-
Lathyrus odoratus
-
2.5.1.53 seedling
-
Fagus crenata
-
2.5.1.53 seedling activity increases during 3-8 days growth. No activity in extracts of 1-day-old seedlings Pisum sativum
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.5.1.53 2 O3-acetyl-L-serine + 2 uracil
-
Albizia julibrissin 3-(uracil-1-yl)-L-alanine + 3-(uracil-3-yl)-L-alanine + 2 acetate i.e. willardiine and isowillardiine ?
2.5.1.53 2 O3-acetyl-L-serine + 2 uracil
-
Leucaena leucocephala 3-(uracil-1-yl)-L-alanine + 3-(uracil-3-yl)-L-alanine + 2 acetate i.e. willardiine and isowillardiine ?
2.5.1.53 2 O3-acetyl-L-serine + 2 uracil
-
Lathyrus odoratus 3-(uracil-1-yl)-L-alanine + 3-(uracil-3-yl)-L-alanine + 2 acetate i.e. willardiine and isowillardiine ?
2.5.1.53 2 O3-acetyl-L-serine + 2 uracil
-
Fagus crenata 3-(uracil-1-yl)-L-alanine + 3-(uracil-3-yl)-L-alanine + 2 acetate i.e. willardiine and isowillardiine ?
2.5.1.53 2 O3-acetyl-L-serine + 2 uracil concentration of uracil at around 13 mM and 35 mM is sufficient to give maximal rates of willardiine and isowillardiine synthesis Pisum sativum 3-(uracil-1-yl)-L-alanine + 3-(uracil-3-yl)-L-alanine + 2 acetate i.e. willardiine and isowillardiine ?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.5.1.53 7.8 7.9
-
Albizia julibrissin
2.5.1.53 7.8 7.9
-
Pisum sativum
2.5.1.53 7.8 7.9
-
Leucaena leucocephala
2.5.1.53 7.8 7.9
-
Lathyrus odoratus
2.5.1.53 7.8 7.9
-
Fagus crenata

pH Range

EC Number pH Minimum pH Maximum Comment Organism
2.5.1.53 7.5 8.2 about half-maximal activity at pH 7.5 and 8.2 Pisum sativum

Cofactor

EC Number Cofactor Comment Organism Structure
2.5.1.53 pyridoxal 5'-phosphate
-
Albizia julibrissin
2.5.1.53 pyridoxal 5'-phosphate
-
Leucaena leucocephala
2.5.1.53 pyridoxal 5'-phosphate
-
Lathyrus odoratus
2.5.1.53 pyridoxal 5'-phosphate
-
Fagus crenata
2.5.1.53 pyridoxal 5'-phosphate increases activity Pisum sativum