Structural and serological evidence for a novel mechanism of antigenic variation in foot-and-mouth disease virus
Parry, Nigel ; Fox, Graham ; Rowlands, David ; Brown, Fred ; Fry, Elizabeth ; Acharya, Ravindra ; Logan, Derek LU
and Stuart, David
(1990)
In Nature
347.
p.569-572
- Abstract
CHANGES resulting in altered antigenic properties of viruses nearly always occur on their surface and have been attributed to the substitution of residues directly involved in binding antibody. To investigate the mechanism of antigenic variation in foot-and-mouth disease virus (FMDV), variants that escape neutralization by a monoclonal antibody have been compared crystallographically and serologically with parental virus. FMDVs form one of the four genera of the Picornaviridae. The unenveloped icosahedral shell comprises 60 copies each of four structural proteins VP1-4. Representatives from each of the genera have similar overall structure, but differences in the external features1-4. For example, human rhinovirus has a... (More)
CHANGES resulting in altered antigenic properties of viruses nearly always occur on their surface and have been attributed to the substitution of residues directly involved in binding antibody. To investigate the mechanism of antigenic variation in foot-and-mouth disease virus (FMDV), variants that escape neutralization by a monoclonal antibody have been compared crystallographically and serologically with parental virus. FMDVs form one of the four genera of the Picornaviridae. The unenveloped icosahedral shell comprises 60 copies each of four structural proteins VP1-4. Representatives from each of the genera have similar overall structure, but differences in the external features1-4. For example, human rhinovirus has a pronounced 'canyon' that is proposed to contain the cell attachment site1,5-7, whereas elements of the attachment site for FMDV, which involves the G-H loop (residues 134-160) and C-terminus (200-213) of VP18,9, are exposed on the surface. Moreover, this G-H loop, which is a major antigenic site of FMDV, forms a prominent, highly accessible protrusion4, a feature not seen in other picornaviruses. It is this loop that is perturbed in the variant viruses that we have studied. The amino acid mutations characterizing the variants are not at positions directly involved in antibody binding, but result in far-reaching perturbations of the surface structure of the virus. Thus, this virus seems to use a novel escape mechanism whereby an induced confor-mational change in a major antigenic loop destroys the integrity of the epitope.
(Less)
- author
- Parry, Nigel
; Fox, Graham
; Rowlands, David
; Brown, Fred
; Fry, Elizabeth
; Acharya, Ravindra
; Logan, Derek
LU
and Stuart, David
- publishing date
- 1990
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nature
- volume
- 347
- pages
- 4 pages
- publisher
- Nature Publishing Group
- external identifiers
-
- scopus:0025094320
- pmid:1699132
- ISSN
- 0028-0836
- DOI
- 10.1038/347569a0
- language
- English
- LU publication?
- no
- id
- 381727c1-8347-41a4-8307-a51843e87aa0
- date added to LUP
- 2022-04-08 08:58:56
- date last changed
- 2024-01-13 06:05:14
@article{381727c1-8347-41a4-8307-a51843e87aa0,
abstract = {{<p>CHANGES resulting in altered antigenic properties of viruses nearly always occur on their surface and have been attributed to the substitution of residues directly involved in binding antibody. To investigate the mechanism of antigenic variation in foot-and-mouth disease virus (FMDV), variants that escape neutralization by a monoclonal antibody have been compared crystallographically and serologically with parental virus. FMDVs form one of the four genera of the Picornaviridae. The unenveloped icosahedral shell comprises 60 copies each of four structural proteins VP1-4. Representatives from each of the genera have similar overall structure, but differences in the external features<sup>1-4</sup>. For example, human rhinovirus has a pronounced 'canyon' that is proposed to contain the cell attachment site<sup>1,5-7</sup>, whereas elements of the attachment site for FMDV, which involves the G-H loop (residues 134-160) and C-terminus (200-213) of VP1<sup>8,9</sup>, are exposed on the surface. Moreover, this G-H loop, which is a major antigenic site of FMDV, forms a prominent, highly accessible protrusion<sup>4</sup>, a feature not seen in other picornaviruses. It is this loop that is perturbed in the variant viruses that we have studied. The amino acid mutations characterizing the variants are not at positions directly involved in antibody binding, but result in far-reaching perturbations of the surface structure of the virus. Thus, this virus seems to use a novel escape mechanism whereby an induced confor-mational change in a major antigenic loop destroys the integrity of the epitope.</p>}},
author = {{Parry, Nigel and Fox, Graham and Rowlands, David and Brown, Fred and Fry, Elizabeth and Acharya, Ravindra and Logan, Derek and Stuart, David}},
issn = {{0028-0836}},
language = {{eng}},
pages = {{569--572}},
publisher = {{Nature Publishing Group}},
series = {{Nature}},
title = {{Structural and serological evidence for a novel mechanism of antigenic variation in foot-and-mouth disease virus}},
url = {{http://dx.doi.org/10.1038/347569a0}},
doi = {{10.1038/347569a0}},
volume = {{347}},
year = {{1990}},
}