[Term] id: PR:000047669 name: histone H2AX, initiator methionine removed symmetrically-dimethylated 1 (human) def: "A histone H2AX (human) that has had the initiator methionine removed and has been post-translationally modified to include symmetric dimethyl-L-arginine at position 4 of the amino acid sequence represented by UniProtKB:P16104. UniProtKB:P16104, 2-143, Arg-4, MOD:00076." [PRO:DNx, Reactome:R-HSA-5218317] comment: Category=organism-modification. synonym: "hH2AFX/InitMet-/Me2s:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:P16104, 2-143, Arg-4, MOD:00076" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-5218317 "PR:000047669 located_in GO:0005654" is_a: PR:P16104 ! histone H2AX (human) relationship: has_part MOD:00076 ! symmetric dimethyl-L-arginine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens relationship: lacks_part PR:000021937 ! initiator methionine