AVM v1, released 02-OCT-22

A manually curated database of aerosol-transmitted virus mutations, human diseases, and drugs

Mutation detail:


Mutation site F103S
Virus Influenzavirus A H1N1
Mutation level Amino acid Level
Gene/protein/region type NS1
Gene ID 23308111
Country -
Mutation type nonsynonymous mutation
Genotype/subtype/clade -
Sample Human
Variants -
Viral reference sequence GQ168862.1
Drug/antibody/vaccine -
Transmissibility -
Transmission mechanism -
Pathogenicity -
Pathogenicity mechanism -
Immune escape mutation -
Immune escape mechanism -
RT-PCR primers probes -

Protein detail:


Protein name Nonstructural Protein 1
Uniprot protein ID C3W611
Protein length 219 amino acids
Protein description The non-structural protein 1 (NS1) is a crucial influenza A virus immune regulator that antagonizes antiviral response. The NS1 protein counteracts the production of IFNs and the activities of IFN-induced proteins that restrict influenza virus replication. Furthermore, NS1 is a multifunctional regulatory viral protein that plays a critical role as a posttranscriptional regulatory factor in the life cycle of influenza virus; specifically, binding virion RNA. NS1 protein consists of 2 distinct functional domains connected by a flexible linker region (LR): an N-terminal RNA- binding domain (RBD, aa 1-73) and a C-terminal effector domain (ED, aa 74-207). The nucleotide sequence (NLS) (aa 35-41) overlaps the sequences needed for dsRNA binding.

Literature information:


Pubmed ID 21094080
Clinical information No
Disease -
Published year 2011
Journal J Clin Virol
Title Investigation of causes of oseltamivir chemoprophylaxis failures during influenza A (H1N1-2017) outbreaks
Author Vernon J Lee,Jonathan Yap,Sebastian Maurer-Stroh,Raphael T C Lee,Frank Eisenhaber
Evidence From the whole genome sequencing, several mutations at the HA (T220S, E275V, T333A, D240G);PB2 (K660R, L607V, V292I);NS1 (F103S), and NP (W104G) gene segments were detected, but none of them were likely to result in anti-viral resistance.