AVM v1, released 02-OCT-22

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

Mutation detail:


Mutation site A1298V
Virus SARS-CoV-2
Mutation level Amino acid level
Gene/protein/region type ORF1ab(NSP3)
Gene ID 43740578
Country -
Mutation type nonsynonymous mutation
Genotype/subtype/clade -
Sample Human
Variants -
Viral reference sequence NC_045512.2
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 P0DTC1
Protein length 7096 amino acids
Protein description ORF1ab, the largest gene, contains overlapping open reading frames that encode polyproteins PP1ab and PP1a. The polyproteins are cleaved to yield 16 nonstructural proteins, NSP1-16. Production of the longer (PP1ab) or shorter protein (PP1a) depends on a -1 ribosomal frameshifting event. The proteins, based on similarity to other coronaviruses, include the papain-like proteinase protein (NSP3), 3C-like proteinase (NSP5), RNA-dependent RNA polymerase (NSP12, RdRp), helicase (NSP13, HEL), endoRNAse (NSP15), 2'-O-Ribose-Methyltransferase (NSP16) and other nonstructural proteins. SARS-CoV-2 nonstructural proteins are responsible for viral transcription, replication, proteolytic processing, suppression of host immune responses and suppression of host gene expression. The RNA-dependent RNA polymerase is a target of antiviral therapies.

Literature information:


Pubmed ID 33549714
Clinical information No
Disease -
Published year 2021
Journal GENE
Title Mutational analysis and assessment of its impact on proteins of SARS-CoV-2 genomes from India
Author Rezwanuzzaman Laskar, Safdar Ali
Evidence A total of 281 SNPs which were present which were altering the amino acid sequence. Their details and positions have been summarized in Table 4 and Supplementary file 5.