##gff-version 3 P61289 UniProtKB Initiator methionine 1 1 . . . Note=Removed;Ontology_term=ECO:0000269,ECO:0007744;evidence=ECO:0000269|Ref.9,ECO:0007744|PubMed:22814378;Dbxref=PMID:22814378 P61289 UniProtKB Chain 2 254 . . . ID=PRO_0000161789;Note=Proteasome activator complex subunit 3 P61289 UniProtKB Modified residue 2 2 . . . Note=N-acetylalanine;Ontology_term=ECO:0000269,ECO:0007744;evidence=ECO:0000269|Ref.9,ECO:0007744|PubMed:22814378;Dbxref=PMID:22814378 P61289 UniProtKB Modified residue 17 17 . . . Note=Phosphoserine;Ontology_term=ECO:0007744;evidence=ECO:0007744|PubMed:23186163;Dbxref=PMID:23186163 P61289 UniProtKB Modified residue 24 24 . . . Note=Phosphoserine;Ontology_term=ECO:0007744;evidence=ECO:0007744|PubMed:18669648;Dbxref=PMID:18669648 P61289 UniProtKB Modified residue 195 195 . . . Note=N6-acetyllysine%3B by P300/CBP;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:23612972;Dbxref=PMID:23612972 P61289 UniProtKB Modified residue 247 247 . . . Note=Phosphoserine%3B by CHEK2;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:25361978;Dbxref=PMID:25361978 P61289 UniProtKB Alternative sequence 1 13 . . . ID=VSP_055047;Note=In isoform 3. MASLLKVDQEVKL->MEKWILKKIKYLQSGGLSASYYSY;Ontology_term=ECO:0000305;evidence=ECO:0000305 P61289 UniProtKB Alternative sequence 135 135 . . . ID=VSP_004516;Note=In isoform 2. T->TPSGKGPHICFDLQ;Ontology_term=ECO:0000303;evidence=ECO:0000303|PubMed:7951316;Dbxref=PMID:7951316 P61289 UniProtKB Mutagenesis 188 188 . . . Note=Assembles into less stable hexamers/heptamers and therefore impairs specificity of activation of trypsin-like subunits of the proteasome. K->E%2CD%2CA%2CC%2CN%2CQ%2CH%2CF%2CS%2CI%2CP;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:11432824;Dbxref=PMID:11432824 P61289 UniProtKB Sequence conflict 25 25 . . . Note=E->K;Ontology_term=ECO:0000305;evidence=ECO:0000305 P61289 UniProtKB Sequence conflict 94 94 . . . Note=E->K;Ontology_term=ECO:0000305;evidence=ECO:0000305