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Literature summary for 2.1.1.14 extracted from

  • Madison, J.T.
    Sulphur metabolism. F. Enzymes involved in the synthesis of methionine (1990), Methods Plant Biochem., 3, 361-369.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
methionine
-
Daucus carota
methionine
-
Hordeum vulgare
methionine
-
Phaseolus sp.
methionine
-
Pisum sativum
methionine
-
Spinacia oleracea

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.000026
-
5-methyltetrahydropteroylglutamate
-
Pisum sativum
0.0022
-
S-methylmethionine
-
Pisum sativum
0.004
-
S-adenosylmethionine
-
Pisum sativum
0.041
-
homocysteine cosubstrate S-methyl-L-methionine Phaseolus sp.
0.055
-
S-methylmethionine
-
Phaseolus sp.
0.6
-
homocysteine cosubstrate 5-methyltetrahydropteroylglutamate Pisum sativum

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast
-
Hordeum vulgare 9507
-
chloroplast
-
Spinacia oleracea 9507
-
chloroplast
-
Pisum sativum 9507
-
chloroplast
-
Daucus carota 9507
-
chloroplast
-
Phaseolus sp. 9507
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ stimulates Hordeum vulgare
Mg2+ stimulates Spinacia oleracea
Mg2+ stimulates Pisum sativum
Mg2+ stimulates Daucus carota
Mg2+ stimulates Phaseolus sp.
phosphate
-
Hordeum vulgare
phosphate
-
Spinacia oleracea
phosphate
-
Pisum sativum
phosphate
-
Daucus carota
phosphate
-
Phaseolus sp.

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Hordeum vulgare final step in methionine synthesis ?
-
?
additional information Spinacia oleracea final step in methionine synthesis ?
-
?
additional information Pisum sativum final step in methionine synthesis ?
-
?
additional information Daucus carota final step in methionine synthesis ?
-
?
additional information Phaseolus sp. final step in methionine synthesis ?
-
?

Organism

Organism UniProt Comment Textmining
Daucus carota
-
carrot
-
Hordeum vulgare
-
barley
-
Phaseolus sp.
-
bean
-
Pisum sativum
-
pea, 2 enzyme forms: a 5-methyltetrahydropteroylglutamate dependent enzyme and a S-methylmethionine dependent enzyme
-
Spinacia oleracea
-
spinach
-

Purification (Commentary)

Purification (Comment) Organism
-
Phaseolus sp.

Reaction

Reaction Comment Organism Reaction ID
5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = tetrahydropteroyltri-L-glutamate + L-methionine final step in methionine synthesis Hordeum vulgare
5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = tetrahydropteroyltri-L-glutamate + L-methionine final step in methionine synthesis Spinacia oleracea
5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = tetrahydropteroyltri-L-glutamate + L-methionine final step in methionine synthesis Pisum sativum
5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = tetrahydropteroyltri-L-glutamate + L-methionine final step in methionine synthesis Daucus carota
5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = tetrahydropteroyltri-L-glutamate + L-methionine final step in methionine synthesis Phaseolus sp.

Source Tissue

Source Tissue Comment Organism Textmining
root
-
Hordeum vulgare
-
root
-
Spinacia oleracea
-
root
-
Pisum sativum
-
root
-
Daucus carota
-
root
-
Phaseolus sp.
-
seedling
-
Hordeum vulgare
-
seedling
-
Spinacia oleracea
-
seedling
-
Pisum sativum
-
seedling
-
Daucus carota
-
seedling
-
Phaseolus sp.
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
5-methyltetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-homocysteine
-
Hordeum vulgare tetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-methionine
-
?
5-methyltetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-homocysteine
-
Spinacia oleracea tetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-methionine
-
?
5-methyltetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-homocysteine
-
Pisum sativum tetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-methionine
-
?
5-methyltetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-homocysteine
-
Daucus carota tetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-methionine
-
?
5-methyltetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-homocysteine
-
Phaseolus sp. tetrahydropteroyl-gamma-glutamyl-gamma-glutamylglutamate + L-methionine
-
?
additional information enzymes of higher plants can use the monoglutamate Hordeum vulgare ?
-
?
additional information enzymes of higher plants can use the monoglutamate Spinacia oleracea ?
-
?
additional information enzymes of higher plants can use the monoglutamate Pisum sativum ?
-
?
additional information enzymes of higher plants can use the monoglutamate Daucus carota ?
-
?
additional information enzymes of higher plants can use the monoglutamate Phaseolus sp. ?
-
?
additional information most active with the polyglutamate forms of N5-methyltetrahydropteroylglutamate Hordeum vulgare ?
-
?
additional information most active with the polyglutamate forms of N5-methyltetrahydropteroylglutamate Spinacia oleracea ?
-
?
additional information most active with the polyglutamate forms of N5-methyltetrahydropteroylglutamate Pisum sativum ?
-
?
additional information most active with the polyglutamate forms of N5-methyltetrahydropteroylglutamate Daucus carota ?
-
?
additional information most active with the polyglutamate forms of N5-methyltetrahydropteroylglutamate Phaseolus sp. ?
-
?
additional information final step in methionine synthesis Hordeum vulgare ?
-
?
additional information final step in methionine synthesis Spinacia oleracea ?
-
?
additional information final step in methionine synthesis Pisum sativum ?
-
?
additional information final step in methionine synthesis Daucus carota ?
-
?
additional information final step in methionine synthesis Phaseolus sp. ?
-
?
N5-methyltetrahydropteroylmonoglutamate + L-homocysteine
-
Pisum sativum tetrahydropteroylmonoglutamate + L-methionine
-
?
S-adenosylmethionine + homocysteine
-
Pisum sativum methionine + S-adenosylhomocysteine
-
?
S-methylmethionine + homocysteine
-
Pisum sativum methionine
-
?
S-methylmethionine + L-homocysteine
-
Phaseolus sp. ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
5-methyltetrahydropteroylglutamate Pisum sativum
7.3
-
L-methionine Pisum sativum
7.9
-
L-methionine Phaseolus sp.

Cofactor

Cofactor Comment Organism Structure
additional information vitamin-B12 independent enzyme Hordeum vulgare
additional information vitamin-B12 independent enzyme Spinacia oleracea
additional information vitamin-B12 independent enzyme Pisum sativum
additional information vitamin-B12 independent enzyme Daucus carota
additional information vitamin-B12 independent enzyme Phaseolus sp.
additional information no requirement for a reducing system Hordeum vulgare
additional information no requirement for a reducing system Spinacia oleracea
additional information no requirement for a reducing system Pisum sativum
additional information no requirement for a reducing system Daucus carota
additional information no requirement for a reducing system Phaseolus sp.
additional information no requirement for S-adenosylmethionine Hordeum vulgare
additional information no requirement for S-adenosylmethionine Spinacia oleracea
additional information no requirement for S-adenosylmethionine Pisum sativum
additional information no requirement for S-adenosylmethionine Daucus carota
additional information no requirement for S-adenosylmethionine Phaseolus sp.