[Term] id: PR:000060496 name: hemoglobin subunit alpha, initiator methionine removed carboxylated and protonated 1 (human) def: "A hemoglobin subunit alpha (human) that has had the initiator methionine removed, that has been carboxylated on the residue at the position equivalent to Val-2 of the amino acid sequence represented by UniProtKB:P69905, and that includes at least 1 protonated residue. UniProtKB:P69905, 2-142, Val-2, MOD:01874|MOD:01699." [PRO:DNx, Reactome:R-HSA-1237026] comment: Category=organism-modification. synonym: "hHBA/InitMet-/Cbxprot:1" EXACT PRO-short-label [PRO:DNx] synonym: "CO-H+-HBA1" RELATED Reactome-displayName [PRO:DNx, Reactome:R-HSA-1237026] synonym: "UniProtKB:P69905, 2-142, Val-2, MOD:01874|MOD:01699" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-1237026 "PR:000060496 located_in GO:0005829" is_a: PR:P69905 ! hemoglobin subunit alpha (human) relationship: has_part MOD:01874 ! N-carboxy-L-valine relationship: has_part MOD:01699 ! protonated residue relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens