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Literature summary for 2.1.1.9 extracted from

  • Kocsis, M.G.; Ranocha, P.; Gage, D.A.; Simon, E.S.; Rhodes, D.; Peel, G.J.; Mellema, S.; Saito, K.; Awazuhara, M.; Li, C.; Meeley, R.B.; Tarczynski, M.C.; Wagner, C.; Hanson, A.D.
    Insertional inactivation of the methionine S-methyltransferase gene eliminates the S-methylmethionine cycle and increases the methylation ratio (2003), Plant Physiol., 131, 1808-1815.
    View publication on PubMedView publication on EuropePMC

Protein Variants

Protein Variants Comment Organism
additional information constructed insertion mmt null mutant lacks the SMM cycle, but grows and reproduces normally, overview Zea mays
additional information constructed insertion mmt null mutant lacks the SMM cycle, but grows and reproduces normally, the mutant shows elevated S-adenosyl-L-methionine levels and reduced S-adenosyl-L-homocysteine levels as well as other amino acid contents being reduced, overview Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
S-adenosyl-L-methionine + a thiol Zea mays enzyme is not essential as methyl donor or as sulfur transport form, enzyme is involved in regulation of the free Met pool and the S-adenosyl-L-methionine level, SMM cycle, overview S-adenosyl-L-homocysteine + a thioether
-
?
S-adenosyl-L-methionine + a thiol Arabidopsis thaliana enzyme is not essential as methyl donor or as sulfur transport form, enzyme is involved in regulation of the free Met pool and the S-adenosyl-L-methionine level, SMM cycle, overview S-adenosyl-L-homocysteine + a thioether
-
?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
gene mmt
-
Zea mays
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Zea mays
-
leaf
-
Arabidopsis thaliana
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Zea mays
additional information
-
-
Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S-adenosyl-L-methionine + a thiol
-
Zea mays S-adenosyl-L-homocysteine + a thioether
-
?
S-adenosyl-L-methionine + a thiol
-
Arabidopsis thaliana S-adenosyl-L-homocysteine + a thioether
-
?
S-adenosyl-L-methionine + a thiol enzyme is not essential as methyl donor or as sulfur transport form, enzyme is involved in regulation of the free Met pool and the S-adenosyl-L-methionine level, SMM cycle, overview Zea mays S-adenosyl-L-homocysteine + a thioether
-
?
S-adenosyl-L-methionine + a thiol enzyme is not essential as methyl donor or as sulfur transport form, enzyme is involved in regulation of the free Met pool and the S-adenosyl-L-methionine level, SMM cycle, overview Arabidopsis thaliana S-adenosyl-L-homocysteine + a thioether
-
?

Synonyms

Synonyms Comment Organism
Met S-methyltransferase
-
Zea mays
Met S-methyltransferase
-
Arabidopsis thaliana
methionine S-methyltransferase
-
Zea mays
methionine S-methyltransferase
-
Arabidopsis thaliana
MMT
-
Zea mays
MMT
-
Arabidopsis thaliana

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
in vivo assay at Zea mays
25
-
in vivo assay at Arabidopsis thaliana