AVM v1, released 02-OCT-22

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

Mutation detail:


Mutation site N205S
Virus Influenzavirus A H1N1
Mutation level Amino acid Level
Gene/protein/region type NS1
Gene ID 23308111
Country Russia
Mutation type nonsynonymous mutation
Genotype/subtype/clade -
Sample Human
Variants -
Viral reference sequence NC_026432.1
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 27776172
Clinical information Yes
Disease -
Published year 2016
Journal PLoS One
Title Fatal Cases of Seasonal Influenza in Russia in 2015-2016
Author T Ilyicheva,A Durymanov,I Susloparov,N Kolosova,N Goncharova
Evidence all strains with a detected nucleotide sequence of NS gene we registered the following mutations: NS1-N205S and NS2(NEP)-T48A which increase virulence due to inhibition of IFN-dependent mechanism of the antiviral response in the infected cells (INF inhibition in culture).