##gff-version 3 P77921 UniProtKB Initiator methionine 1 1 . . . Note=Removed;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:8068652;Dbxref=PMID:8068652 P77921 UniProtKB Chain 2 50 . . . ID=PRO_0000183904;Note=Cytochrome c oxidase subunit 4 P77921 UniProtKB Topological domain 2 17 . . . Note=Cytoplasmic P77921 UniProtKB Transmembrane 18 49 . . . Note=Helical P77921 UniProtKB Topological domain 50 50 . . . Note=Periplasmic P77921 UniProtKB Helix 18 49 . . . Ontology_term=ECO:0007829;evidence=ECO:0007829|PDB:7ATE