S-methylmethionine metabolic process
The chemical reactions and pathways involving S-methyl-methionine (SMM). SMM can be converted 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:0006575
modified amino acid metabolic process
is_a
GO:0006790
sulfur compound metabolic process
is_a
S-methylmethionine metabolism
exact