AVM v1, released 02-OCT-22

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

Mutation detail:


Mutation site 25673A>C
Virus SARS-CoV
Mutation level Nucleotide level
Gene/protein/region type ORF3a
Gene ID 1489669
Country -
Mutation type -
Genotype/subtype/clade -
Sample Human
Variants -
Viral reference sequence AY278741.1
Drug/antibody/vaccine -
Transmissibility -
Transmission mechanism -
Pathogenicity -
Pathogenicity mechanism -
Immune escape mutation -
Immune escape mechanism -
RT-PCR primers probes -

Protein detail:


Protein name ORF3a Protein
Uniprot protein ID P59632
Protein length 274 amino acids
Protein description The accessory protein orf3a of SARS-CoV is located between the spike and the E protein genes. The N-terminus of the protein is found at the extracellular side, while the C-terminus is located on the intracellular side. Also, it contains a cysteine-rich domain. The N-terminal domain of the orf3a protein contains three transmembrane domains. The orf3a plays a role in the viral envelope assembly, host cell binding and infusion since it interacts with the structural proteins (M, S, and E) and the accessory protein (7a) of SARS-CoV.

Literature information:


Pubmed ID 15347429
Clinical information No
Disease -
Published year 2004
Journal BMC INFECTIOUS DISEASES
Title Mutational dynamics of the SARS coronavirus in cell culture and human populations isolated in 2003
Author Vinsensius B Vega, Yijun Ruan, Jianjun Liu, Wah Heng Lee, Chia Lin Wei
Evidence Table S3