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Literature summary for 2.1.1.13 extracted from

  • Grabau, W.; Rudiger, H.
    Purification and properties of the tetrahydropteroylglutamate methyltransferase from green beans (Phaseolus vulgaris) (1977), Hoppe-Seyler's Z. Physiol. Chem., 358, 695-698.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.43
-
L-homocysteine
-
Phaseolus vulgaris
2.4
-
N5-methyltetrahydropteroylmonoglutamate
-
Phaseolus vulgaris

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ activates Phaseolus vulgaris

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
40000
-
gel filtration Phaseolus vulgaris

Organism

Organism UniProt Comment Textmining
Phaseolus vulgaris
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Phaseolus vulgaris

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
assay method Phaseolus vulgaris

Storage Stability

Storage Stability Organism
0°C, pH 7, half-life 6 days Phaseolus vulgaris
freeze-dried, 20% loss of activity after 3 months Phaseolus vulgaris

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
N5-methyltetrahydropteroylmonoglutamate + L-homocysteine
-
Phaseolus vulgaris tetrahydropteroylmonoglutamate + L-methionine
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
31
-
-
Phaseolus vulgaris
39
-
-
Phaseolus vulgaris

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
10 39 10°C: about 10% of maximum activity, 39°C: maximum activity Phaseolus vulgaris
15 31 15°C: about 10% of maximum activity, 31°C: maximum activity Phaseolus vulgaris

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
-
Phaseolus vulgaris

pH Stability

pH Stability pH Stability Maximum Comment Organism
7
-
stability optimum, 0°C, t1/2: 6 days Phaseolus vulgaris