AVM v1, released 02-OCT-22

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

Mutation detail:


Mutation site E627K
Virus Influenzavirus A H1N1
Mutation level Amino acid Level
Gene/protein/region type PB2
Gene ID 23308131
Country -
Mutation type nonsynonymous mutation
Genotype/subtype/clade -
Sample cell line
Variants -
Viral reference sequence CY176949.1
Drug/antibody/vaccine -
Transmissibility -
Transmission mechanism -
Pathogenicity -
Pathogenicity mechanism -
Immune escape mutation -
Immune escape mechanism -
RT-PCR primers probes -

Protein detail:


Protein name Polymerase PB2
Uniprot protein ID C3W5X5
Protein length 759 amino acids
Protein description PB2 plays an essential role in transcription initiation and cap-stealing mechanism, in which cellular capped pre-mRNAs are used to generate primers for viral transcription. Recognizes and binds the 7-methylguanosine-containing cap of the target pre-RNA which is subsequently cleaved after 10-13 nucleotides by the viral protein PA. Plays a role in the initiation of the viral genome replication and modulates the activity of the ribonucleoprotein (RNP) complex.

Literature information:


Pubmed ID 20130063
Clinical information No
Disease -
Published year 2010
Journal Journal of Virology
Title Introduction of virulence markers in PB2 of pandemic swine-origin influenza virus does not result in enhanced virulence or transmission
Author Sander Herfst,Salin Chutinimitkul,Jianqiang Ye,Emmie de Wit,Vincent J Munster
Evidence Mutations E627K and D701N in the PB2 protein have previously been identified as determinants of avian and pandemic influenza virus virulence in mammals.