AVM v1, released 02-OCT-22

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

Mutation detail:


Mutation site 17620C>T
Virus SARS-CoV
Mutation level Nucleotide level
Gene/protein/region type ORF1ab(Helicase)
Gene ID 1489680
Country China
Mutation type -
Genotype/subtype/clade -
Sample Human
Variants -
Viral reference sequence NC_004718.3
Drug/antibody/vaccine -
Transmissibility -
Transmission mechanism -
Pathogenicity -
Pathogenicity mechanism -
Immune escape mutation -
Immune escape mechanism -
RT-PCR primers probes -

Protein detail:


Protein name ORF1ab polyprotein
Uniprot protein ID P0C6X7
Protein length 7073 amino acids
Protein description The Orf1ab polyprotein contains the Orf1a polyprotein and 16 non-structural proteins. The Orf1ab polyprotein and its cleavage products carry out a wide range of activities associated with the viral replication, including ATP binding and breaking down of ADP and phosphate, cysteine-directed endopeptidase, leading to the formation of nonstructural proteins, such as exonuclease that produces ribose- 5-phosphate, methyltransferase for the synthesis of new nucleotides, RNA polymerase for the viral replication, RNA helicase for the removal of super twisting, as well as the regulation of the transcription through binding of zinc. However, the functions of the Orf1ab are the collective functions of the non-structural proteins encoded by the gene of Orf1ab

Literature information:


Pubmed ID 16229772
Clinical information No
Disease -
Published year 2005
Journal Emerging Infectious Diseases
Title Molecular epidemiology of SARS-associated coronavirus, Beijing
Author Wei Liu, Fang Tang, Arnaud Fontanet, Lin Zhan, Tian-Bao Wang
Evidence Table3