##gff-version 3
Q8CDB3	UniProtKB	Signal peptide	1	17	.	.	.	Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:SignalP	
Q8CDB3	UniProtKB	Chain	18	218	.	.	.	ID=PRO_5004304058;Note=T-cell-specific surface glycoprotein CD28;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:SignalP	
Q8CDB3	UniProtKB	Transmembrane	150	176	.	.	.	Note=Helical;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:Phobius	
Q8CDB3	UniProtKB	Domain	26	123	.	.	.	Note=Immunoglobulin V-set;Ontology_term=ECO:0000259;evidence=ECO:0000259|Pfam:PF07686