[Term] id: PR:000075358 name: methionine synthase methylated 3 (human) def: "A methionine synthase (human) that has been methylated on the residue at the position equivalent to Cys-277 of the amino acid sequence represented by UniProtKB:Q99707-1. Example: UniProtKB:Q99707-1, Cys-277, MOD:00660." [PRO:DNx, IEDB_epitope:1008048] comment: Category=organism-modification. synonym: "hMTR/Me:3" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:Q99707, Cys-277, MOD:00660" EXACT PRO-proteoform-std [PRO:DNx] synonym: "UniProtKB:Q99707-1, Cys-277, MOD:00660" NARROW PRO-proteoform-std [PRO:DNx] is_a: PR:Q99707 ! methionine synthase (human) relationship: has_part MOD:00660 ! methylated cysteine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens