AVM v1, released 02-OCT-22

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

Mutation detail:


Mutation site R626K
Virus Influenzavirus A H1N1
Mutation level Amino acid Level
Gene/protein/region type PA
Gene ID 23308128
Country -
Mutation type nonsynonymous mutation
Genotype/subtype/clade clade2,7
Sample cell line
Variants -
Viral reference sequence CY041835.1
Drug/antibody/vaccine -
Transmissibility -
Transmission mechanism -
Pathogenicity -
Pathogenicity mechanism -
Immune escape mutation -
Immune escape mechanism -
RT-PCR primers probes -

Protein detail:


Protein name Polymerase PA
Uniprot protein ID C3W5X6
Protein length 716 amino acids
Protein description PA Plays an essential role in viral RNA transcription and replication by forming the heterotrimeric polymerase complex together with PB1 and PB2 subunits. The complex transcribes viral mRNAs by using a unique mechanism called cap-snatching. It consists in the hijacking and cleavage of host capped pre-mRNAs. These short capped RNAs are then used as primers for viral mRNAs. The PB2 subunit is responsible for the binding of the 5' cap of cellular pre-mRNAs which are subsequently cleaved after 10-13 nucleotides by the PA subunit that carries the endonuclease activity.

Literature information:


Pubmed ID 21288815
Clinical information No
Disease -
Published year 2011
Journal The Journal of Infectious Diseases
Title Deep Sequencing Reveals Mixed Infection with 2009 Pandemic Influenza A (H1N1) Virus Strains and the Emergence of Oseltamivir Resistance
Author Elodie Ghedin,Jennifer Laplante,Jay DePasse,David E. Wentworth,Roberto P. Santos
Evidence Sanger consensus sequence assemblies of both samples also revealed a unique set of residues, compared with the pandemic H1N1/2009 virus strains available in public databases: specifically, a D199N mutation in the NA, a N55D mutation in the HA, and a R626K mutation in the polymerase.