AVM v1, released 02-OCT-22

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

Mutation detail:


Mutation site K164A/H165A
Virus SARS-CoV-2
Mutation level Amino acid level
Gene/protein/region type ORF1ab(leader protein)
Gene ID 43740578
Country -
Mutation type nonsynonymous mutation
Genotype/subtype/clade -
Sample cell line
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 34624207
Clinical information No
Disease -
Published year 2021
Journal Cell Reports
Title The N-terminal domain of SARS-CoV-2 nsp1 plays key roles in suppression of cellular gene expression and preservation of viral gene expression
Author Aaron S. Mendez, Michael Ly, Angelica M. Gonzalez-Sanchez, Ella Hartenian, Nicholas T. Ingolia
Evidence Nsp1 K164A/H165A had no effect on the translation of either reporter, as expected (Figure 5B).