S-methylmethionine biosynthetic process
The chemical reactions and pathways resulting in the formation of S-methyl-methionine (SMM) from methionine and S-adenosyl-methionine (Ado-Met), catalyzed by methionine S-methyltransferase (MMT). SMM can be reconverted to methionine by donating a methyl group to homocysteine, and concurrent operation of this reaction and that mediated by MMT sets up the SMM cycle.
GO:0033477
S-methylmethionine metabolic process
is_a
GO:0042398
modified amino acid biosynthetic process
is_a
GO:0044272
sulfur compound biosynthetic process
is_a
S-methylmethionine anabolism
exact
S-methylmethionine biosynthesis
exact
S-methylmethionine formation
exact
S-methylmethionine synthesis
exact