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Literature summary for 2.1.1.12 extracted from

  • James, F.; Nolte, K.D.; Hanson, A.D.
    Purification and properties of S-adenosyl-L-methionine:L-methionine S-methyltransferase from Wollastonia biflora leaves (1995), J. Biol. Chem., 270, 22344-22350.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
3-(methylthio)propanol
-
Wollastonia biflora
3-(methylthio)propionate
-
Wollastonia biflora
3-(methylthio)propionate methyl ester
-
Wollastonia biflora
3-(methylthio)propylamine
-
Wollastonia biflora
3-dimethylsulfoniopropionaldehyde
-
Wollastonia biflora
D-Met
-
Wollastonia biflora
DL-2-hydroxy-4-(methylthio)butyrate
-
Wollastonia biflora
Gly-Met
-
Wollastonia biflora
L-ethionine
-
Wollastonia biflora
L-Met ethyl ester
-
Wollastonia biflora
L-Met methyl ester
-
Wollastonia biflora
L-Met p-nitroanilide
-
Wollastonia biflora
L-Methioninamide
-
Wollastonia biflora
L-methioninol
-
Wollastonia biflora
N-2,4-dinitrophenyl-DL-Met
-
Wollastonia biflora
N-formyl-L-Met
-
Wollastonia biflora
NEM 0.5 mM, 99% inhibition Wollastonia biflora
p-hydroxymercuribenzoate 0.1 mM; 97% inhibition Wollastonia biflora
S-adenosyl-L-homocysteine
-
Wollastonia biflora
S-methyl-L-methionine
-
Wollastonia biflora
seleno-L-methionine
-
Wollastonia biflora

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.034
-
S-adenosyl-L-methionine
-
Wollastonia biflora
0.14
-
L-Met
-
Wollastonia biflora

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
115000
-
4 * 115000, SDS-PAGE Wollastonia biflora
450000
-
gel filtration Wollastonia biflora

Organism

Organism UniProt Comment Textmining
Brassica oleracea
-
-
-
Lactuca sativa
-
-
-
Trifolium repens
-
-
-
Wollastonia biflora
-
-
-
Zea mays
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Wollastonia biflora

Reaction

Reaction Comment Organism Reaction ID
S-adenosyl-L-methionine + L-methionine + H+ = S-adenosyl-L-homocysteine + S-methyl-L-methionine ordered bi bi mechanism with S-adenosylmethionine the first reactant to bind and S-adenosylhomocysteine the last product to be released Wollastonia biflora

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Wollastonia biflora
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Wollastonia biflora

Storage Stability

Storage Stability Organism
-20 C, complete inactivation after flash freezing in liquid N2 Wollastonia biflora

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S-adenosyl-L-methionine + L-methionine
-
Zea mays S-adenosyl-L-homocysteine + S-methyl-L-methionine
-
?
S-adenosyl-L-methionine + L-methionine
-
Lactuca sativa S-adenosyl-L-homocysteine + S-methyl-L-methionine
-
?
S-adenosyl-L-methionine + L-methionine
-
Brassica oleracea S-adenosyl-L-homocysteine + S-methyl-L-methionine
-
?
S-adenosyl-L-methionine + L-methionine
-
Trifolium repens S-adenosyl-L-homocysteine + S-methyl-L-methionine
-
?
S-adenosyl-L-methionine + L-methionine
-
Wollastonia biflora S-adenosyl-L-homocysteine + S-methyl-L-methionine
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 115000, SDS-PAGE Wollastonia biflora

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
4
-
complete inactivation after 1 week Wollastonia biflora
25
-
complete inactivation after 24 h Wollastonia biflora

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.2
-
-
Wollastonia biflora

pH Range

pH Minimum pH Maximum Comment Organism
5.8 9 about 50-55% of optimal activity at pH 5.8 and 9.0, only 1% of optimal activity at pH 5.0 Wollastonia biflora

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.013
-
S-adenosyl-L-homocysteine
-
Wollastonia biflora
0.226
-
S-methyl-L-methionine
-
Wollastonia biflora