[Term] id: PR:000048851 name: DNA-directed RNA polymerase II subunit RPB3, initiator methionine removed form (human) def: "A DNA-directed RNA polymerase II subunit RPB3 (human) that has had the initiator methionine removed. UniProtKB:P19387, 2-275." [PRO:DNx, Reactome:R-HSA-63506] comment: Category=organism-modification. synonym: "hPOLR2C/InitMet-" EXACT PRO-short-label [PRO:DNx] synonym: "PRO_0000132743" EXACT PRO-proteoform-ftid [PRO:DNx] synonym: "UniProtKB:P19387, 2-275" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-63506 "PR:000048851 located_in GO:0005654" intersection_of: PR:P19387 ! DNA-directed RNA polymerase II subunit RPB3 (human) intersection_of: lacks_part PR:000021937 ! initiator methionine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens