##gff-version 3
Q91UL0	UniProtKB	Chain	1	577	.	.	.	ID=PRO_0000390622;Note=Hemagglutinin-neuraminidase	
Q91UL0	UniProtKB	Topological domain	1	26	.	.	.	Note=Intravirion;Ontology_term=ECO:0000255;evidence=ECO:0000255	
Q91UL0	UniProtKB	Transmembrane	27	47	.	.	.	Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255	
Q91UL0	UniProtKB	Topological domain	48	577	.	.	.	Note=Virion surface;Ontology_term=ECO:0000255;evidence=ECO:0000255	
Q91UL0	UniProtKB	Region	124	152	.	.	.	Note=Important for interaction with fusion/F protein;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:14512552;Dbxref=PMID:14512552	
Q91UL0	UniProtKB	Glycosylation	341	341	.	.	.	Note=N-linked (GlcNAc...) asparagine%3B by host;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:27928741;Dbxref=PMID:27928741	
Q91UL0	UniProtKB	Glycosylation	433	433	.	.	.	Note=N-linked (GlcNAc...) asparagine%3B by host;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:27928741;Dbxref=PMID:27928741	
Q91UL0	UniProtKB	Glycosylation	481	481	.	.	.	Note=N-linked (GlcNAc...) asparagine%3B by host;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:27928741;Dbxref=PMID:27928741	
Q91UL0	UniProtKB	Glycosylation	538	538	.	.	.	Note=N-linked (GlcNAc...) asparagine%3B by host;Ontology_term=ECO:0000255;evidence=ECO:0000255	
Q91UL0	UniProtKB	Mutagenesis	83	83	.	.	.	Note=About 95%25 loss of the fusion promotion activities. R->T;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:23740987;Dbxref=PMID:23740987	
Q91UL0	UniProtKB	Mutagenesis	97	97	.	.	.	Note=About 95%25 loss of the fusion promotion activities. L->T;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:23740987;Dbxref=PMID:23740987	
Q91UL0	UniProtKB	Mutagenesis	133	133	.	.	.	Note=About 80%25 loss of the fusion promotion activities. I->A;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:14512552;Dbxref=PMID:14512552	
Q91UL0	UniProtKB	Mutagenesis	140	140	.	.	.	Note=About 80%25 loss of the fusion promotion activities. L->A;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:14512552;Dbxref=PMID:14512552	
Q91UL0	UniProtKB	Mutagenesis	158	158	.	.	.	Note=About 98%25 loss of the fusion promotion activities. E->A;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:12438628;Dbxref=PMID:12438628	
Q91UL0	UniProtKB	Mutagenesis	160	160	.	.	.	Note=About 97%25 loss of the fusion promotion activities. L->A;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:12438628;Dbxref=PMID:12438628	
Q91UL0	UniProtKB	Mutagenesis	220	220	.	.	.	Note=About 97%25 loss of the fusion promotion activities. F->A;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:12438628;Dbxref=PMID:12438628	
Q91UL0	UniProtKB	Mutagenesis	224	224	.	.	.	Note=About 97%25 loss of the fusion promotion activities. L->A;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:12438628;Dbxref=PMID:12438628	
Q91UL0	UniProtKB	Mutagenesis	526	526	.	.	.	Note=About 30%25 to 50%25 loss of the fusion promotion activities. Y->Q;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:12438628;Dbxref=PMID:12438628	
Q91UL0	UniProtKB	Mutagenesis	536	536	.	.	.	Note=About 96%25 loss of the fusion promotion activities. K->A;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:12438628;Dbxref=PMID:12438628	
Q91UL0	UniProtKB	Mutagenesis	557	557	.	.	.	Note=About 99%25 loss of the fusion promotion activities. R->A;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:12438628;Dbxref=PMID:12438628