|
Basic Characteristics of Mutations
|
|
Mutation Site
|
S813T |
|
Mutation Site Sentence
|
We identify that S813T mutation is sufficient in S2 interfering with the cleavage of SARS-CoV-2 S by TMPRSS2, reducing spike fusogenicity and pseudoparticle entry. |
|
Mutation Level
|
Amino acid level |
|
Mutation Type
|
Nonsynonymous substitution |
|
Gene/Protein/Region
|
S |
|
Standardized Encoding Gene
|
S
|
|
Genotype/Subtype
|
- |
|
Viral Reference
|
-
|
|
Functional Impact and Mechanisms
|
|
Disease
|
Cell line
|
|
Immune
|
- |
|
Target Gene
|
-
|
|
Clinical and Epidemiological Correlations
|
|
Clinical Information
|
- |
|
Treatment
|
- |
|
Location
|
- |
|
Literature Information
|
|
PMID
|
37196033
|
|
Title
|
Spike substitution T813S increases Sarbecovirus fusogenicity by enhancing the usage of TMPRSS2
|
|
Author
|
Ma Y,Li P,Hu Y,Qiu T,Wang L,Lu H,Lv K,Xu M,Zhuang J,Liu X,He S,He B,Liu S,Liu L,Wang Y,Yue X,Zhai Y,Luo W,Mai H,Kuang Y,Chen S,Ye F,Zhou N,Zhao W,Chen J,Chen S,Xiong X,Shi M,Pan JA,Chen YQ
|
|
Journal
|
PLoS pathogens
|
|
Journal Info
|
2023 May 17;19(5):e1011123
|
|
Abstract
|
SARS-CoV Spike (S) protein shares considerable homology with SARS-CoV-2 S, especially in the conserved S2 subunit (S2). S protein mediates coronavirus receptor binding and membrane fusion, and the latter activity can greatly influence coronavirus infection. We observed that SARS-CoV S is less effective in inducing membrane fusion compared with SARS-CoV-2 S. We identify that S813T mutation is sufficient in S2 interfering with the cleavage of SARS-CoV-2 S by TMPRSS2, reducing spike fusogenicity and pseudoparticle entry. Conversely, the mutation of T813S in SARS-CoV S increased fusion ability and viral replication. Our data suggested that residue 813 in the S was critical for the proteolytic activation, and the change from threonine to serine at 813 position might be an evolutionary feature adopted by SARS-2-related viruses. This finding deepened the understanding of Spike fusogenicity and could provide a new perspective for exploring Sarbecovirus' evolution.
|
|
Sequence Data
|
-
|
|
|