[Term] id: PR:000048978 name: glycogen phosphorylase, muscle form, initiator methionine removed pyridoxal phosphate lysine 1 (human) def: "A glycogen phosphorylase, muscle form (human) that has had the initiator methionine removed and has been post-translationally modified to include pyridoxal phosphate lysine at position 681 of the amino acid sequence represented by UniProtKB:P11217. UniProtKB:P11217, 2-842, Lys-681, MOD:00128." [PRO:DNx, Reactome:R-HSA-71537] comment: Category=organism-modification. synonym: "hPYGM/InitMet-/Pyrdox:1" EXACT PRO-short-label [PRO:DNx] synonym: "PRO_0000188529, Lys-681, MOD:00128" EXACT PRO-proteoform-ftid [PRO:DNx] synonym: "UniProtKB:P11217, 2-842, Lys-681, MOD:00128" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-71537 "PR:000048978 located_in GO:0005829" is_a: PR:P11217 ! glycogen phosphorylase, muscle form (human) relationship: has_part MOD:00128 ! N6-pyridoxal phosphate-L-lysine relationship: lacks_part PR:000021937 ! initiator methionine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens