|
Basic Characteristics of Mutations
|
|
Mutation Site
|
Y384H |
|
Mutation Site Sentence
|
One of the mutants with an amino acid substitution from tyrosine to histidine at residue 384 revealed strongly reduced pathogenicity after peripheral inoculation of adult mice but retained its capacity to replicate in the mice and to induce a high-titered antibody response. |
|
Mutation Level
|
Amino acid level |
|
Mutation Type
|
Nonsynonymous substitution |
|
Gene/Protein/Region
|
E |
|
Standardized Encoding Gene
|
envelope
|
|
Genotype/Subtype
|
- |
|
Viral Reference
|
Neudoerfl
|
|
Functional Impact and Mechanisms
|
|
Disease
|
Cell line
|
|
Immune
|
Y |
|
Target Gene
|
-
|
|
Clinical and Epidemiological Correlations
|
|
Clinical Information
|
- |
|
Treatment
|
- |
|
Location
|
- |
|
Literature Information
|
|
PMID
|
2398538
|
|
Title
|
A single amino acid substitution in envelope protein E of tick-borne encephalitis virus leads to attenuation in the mouse model
|
|
Author
|
Holzmann H,Heinz FX,Mandl CW,Guirakhoo F,Kunz C
|
|
Journal
|
Journal of virology
|
|
Journal Info
|
1990 Oct;64(10):5156-9
|
|
Abstract
|
We have determined the virulence characteristics of seven monoclonal antibody escape mutants of tick-borne encephalitis virus in the mouse model. One of the mutants with an amino acid substitution from tyrosine to histidine at residue 384 revealed strongly reduced pathogenicity after peripheral inoculation of adult mice but retained its capacity to replicate in the mice and to induce a high-titered antibody response. Infection with the attenuated mutant resulted in resistance to challenge with virulent virus. Assessment of nonconservative amino acid substitutions in other attenuated flaviviruses suggests that a structural element including residue 384 may represent an important determinant of flavivirus virulence in general.
|
|
Sequence Data
|
-
|