AVM v1, released 02-OCT-22

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

Mutation detail:


Mutation site T3080A
Virus MERS-CoV
Mutation level Amino acid level
Gene/protein/region type ORF1ab(nsp4)
Gene ID 14254602
Country -
Mutation type nonsynonymous mutation
Genotype/subtype/clade -
Sample Human
Variants -
Viral reference sequence JX869059.2
Drug/antibody/vaccine -
Transmissibility -
Transmission mechanism -
Pathogenicity -
Pathogenicity mechanism -
Immune escape mutation -
Immune escape mechanism -
RT-PCR primers probes -

Protein detail:


Protein name 1AB polyprotein
Uniprot protein ID K9N7C7
Protein length 7078 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.MERS-CoV 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 24055451
Clinical information No
Disease -
Published year 2013
Journal Lancet
Title Transmission and evolution of the Middle East respiratory syndrome coronavirus in Saudi Arabia: a descriptive genomic study
Author Matthew Cotten,Simon J Watson,Paul Kellam,Abdullah A Al-Rabeeah,Hatem Q Makhdoom
Evidence The EMC/2012 sequence was obtained after extensive cell culture passage to establish a virus isolate;26 there are 76 single nucleotide differences between EMC/2012 and the root of the clade B lineage.Figure 2