FB2026_03 , released September 17, 2026
CV Term Report
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Term S-methylmethionine cycle ID (Ontology) GO:0033528 (Gene Ontology)
Definition A cyclic series of interconversions involving S-methyl-L-methionine, S-adenosyl-L-homocysteine, S-adenosyl-L-methionine, L-homocysteine, and L-methionine. Converts the methionine group of S-adenosylmethionine back to free L-methionine, and may serve regulate the cellular adenosylmethionine level.[ PubMed:11337394 ]
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Genes (FBgn)GO_BIOLOGICAL_PROCESS
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 S-methylmethionine cycle (all annotations which use CV term, excluding "NOT" statements)
     involved_in | S-methylmethionine cycle
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modified amino acid metabolic process
 |__S-methylmethionine metabolic process__
sulfur compound metabolic process         |
 |__S-methylmethionine metabolic process__|
small molecule metabolic process          |
 |__one-carbon metabolic process__________|
                                          S-methylmethionine cycle  2 rec.
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Is a one-carbon metabolic process
S-methylmethionine metabolic process
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MetaCyc:PWY-5441