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Literature summary for 4.4.1.14 extracted from

  • Ko, S.; Eliot, A.C.; Kirsch, J.F.
    S-methylmethionine is both a substrate and an inactivator of 1-aminocyclopropane-1-carboxylate synthase (2004), Arch. Biochem. Biophys., 421, 85-90.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
S-methyl-L-methionine covalent inactivation after elimination of dimethylsulfide Malus domestica

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.012
-
(S,S)-S-adenosyl-L-methionine alpha,gamma-elimination Malus domestica
0.037
-
(R,S)-S-adenosyl-L-methionine beta,gamma-elimination Malus domestica
1.4
-
L-Vinylglycine alpha-ketobutyrate production Malus domestica
4.1
-
S-methyl-L-methionine beta,gamma-elimination Malus domestica
35
-
L-alanine transamination Malus domestica

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
(R,S)-S-adenosyl-L-methionine Malus domestica
-
vinylglycine + methylthioadenosine
-
?
(S,S)-S-adenosyl-L-methionine Malus domestica
-
1-aminocyclopropane-1-carboxylate + methylthioadenosine
-
?
L-alanine + pyridoxal 5'-phosphate Malus domestica
-
pyruvate + pyridoxamine 5'-phosphate
-
?
S-methyl-L-methionine Malus domestica
-
alpha-ketobutyrate + ammonia + dimethylsulfide
-
?
S-methyl-L-methionine + pyridoxal 5'-phosphate Malus domestica transamination reaction 4-dimethylsulfonium-2-oxobutyrate + pyridoxamine 5'-phosphate
-
?
vinylglycine Malus domestica
-
alpha-ketobutyrate + ammonia
-
?

Organism

Organism UniProt Comment Textmining
Malus domestica
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(R,S)-S-adenosyl-L-methionine
-
Malus domestica vinylglycine + methylthioadenosine
-
?
(S,S)-S-adenosyl-L-methionine
-
Malus domestica 1-aminocyclopropane-1-carboxylate + methylthioadenosine
-
?
L-alanine + pyridoxal 5'-phosphate
-
Malus domestica pyruvate + pyridoxamine 5'-phosphate
-
?
S-methyl-L-methionine
-
Malus domestica alpha-ketobutyrate + ammonia + dimethylsulfide
-
?
S-methyl-L-methionine beta,gamma elimination of dimethylsulfide to yield enzyme bound L-vinylglycine, which is subsequently converted to alpha-ketobutyrate and ammonia Malus domestica alpha-ketobutyrate + ammonia + dimethylsulfide
-
?
S-methyl-L-methionine + pyridoxal 5'-phosphate transamination reaction Malus domestica 4-dimethylsulfonium-2-oxobutyrate + pyridoxamine 5'-phosphate
-
?
vinylglycine
-
Malus domestica alpha-ketobutyrate + ammonia
-
?

Synonyms

Synonyms Comment Organism
ACC synthase
-
Malus domestica

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.0008
-
S-methyl-L-methionine transamination Malus domestica
0.0016
-
S-methyl-L-methionine inactivation Malus domestica
0.0025
-
L-alanine transamination Malus domestica
0.004
-
L-Vinylglycine inactivation Malus domestica
0.045
-
S-methyl-L-methionine beta,gamma-elimination Malus domestica
0.079
-
(R,S)-S-adenosyl-L-methionine beta,gamma-elimination Malus domestica
1.8
-
L-Vinylglycine alpha-ketobutyrate production Malus domestica
9.2
-
(S,S)-S-adenosyl-L-methionine alpha,gamma-elimination Malus domestica

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate
-
Malus domestica