NCBI Accession #
NP_199792.1
NCBI GenBank Nucleotide #
NM_124359.4
NCBI Official Full Name
methionine S-methyltransferase
NCBI Official Synonym Symbols
methionine S-methyltransferase
NCBI Protein Information
methionine S-methyltransferase
NCBI Summary
Arabidopsis thaliana methionine S-methyltransferase, an enzyme that catalyzes S -methylmethionine formation.
UniProt Synonym Gene Names
MMT
UniProt Protein Name
Methionine S-methyltransferase
UniProt Synonym Protein Names
AdoMet:Met S-methyltransferase
UniProt Primary Accession #
Q9LTB2
UniProt Secondary Accession #
Q9SWR2
UniProt Related Accession #
Q9LTB2
UniProt Comments
Catalyzes the S-methylmethionine (SMM) biosynthesis from adenosyl-L-homocysteine (AdoMet) and methionine. SMM biosynthesis (by MMT1) and degradation (by HMT-1, HMT-2 and HMT-3) constitute the SMM cycle in plants, which is probably required to achieve short term control of AdoMet level. Also able to catalyze the selenium-methylmethionine (SeMM) from AdoMet and selenium-methionine (SeMet). May play a role in phoem sulfur transport; such function is however not essential.