scholarly journals Bioinformatics and Molecular Analysis of the Evolutionary Relationship between Bovine Rhinitis A Viruses and Foot-And-Mouth Disease Virus

2015 ◽  
Vol 9s2 ◽  
pp. BBI.S37223 ◽  
Author(s):  
Devendra K. Rai ◽  
Paul Lawrence ◽  
Steve J. Pauszek ◽  
Maria E. Piccone ◽  
Nick J. Knowles ◽  
...  
Keyword(s):  
Positive Selection ◽  
Disease Virus ◽  
Evolutionary Relationship ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Branch Site ◽  
Mouth Disease Virus ◽  
Foot And Mouth ◽  
The 1960S ◽  
The Uk

Bovine rhinitis viruses (BRVs) cause mild respiratory disease of cattle. In this study, a near full-length genome sequence of a virus named RS3X (formerly classified as bovine rhinovirus type 1), isolated from infected cattle from the UK in the 1960s, was obtained and analyzed. Compared to other closely related Aphthoviruses, major differences were detected in the leader protease (Lpro), P1, 2B, and 3A proteins. Phylogenetic analysis revealed that RS3X was a member of the species bovine rhinitis A virus (BRAV). Using different codon-based and branch-site selection models for Aphthoviruses, including BRAV RS3X and foot-and-mouth disease virus, we observed no clear evidence for genomic regions undergoing positive selection. However, within each of the BRV species, multiple sites under positive selection were detected. The results also suggest that the probability (determined by Recombination Detection Program) for recombination events between BRVs and other Aphthoviruses, including foot-and-mouth disease virus was not significant. In contrast, within BRVs, the probability of recombination increases. The data reported here provide genetic information to assist in the identification of diagnostic signatures and research tools for BRAV.

scholarly journals John Burns Brooksby. 25 December 1914 — 17 December 1998

2007 ◽  
Vol 53 ◽  
pp. 77-92
Author(s):  
R. F. Sellers
Keyword(s):  
Disease Virus ◽  
International Organizations ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Virus Diseases ◽  
Animal Virus ◽  
Mouth Disease Virus ◽  
Foot And Mouth ◽  
The Uk

John Brooksby was an outstanding veterinary virologist, who worked at the Animal Virus Diseases Research Institute, Pirbright, for 40 years, for 16 of which he was Director of the Institute. He will be remembered for his contributions to the diagnosis of foot-and-mouth disease, for his discovery of four new types, for the classification of subtypes and for fundamental studies of the virus. As Deputy Director and Director he was responsible for programmes on fundamental investigations of foot–and–mouth disease virus and other viruses exotic to the UK and for the application of the results both in the UK and worldwide. His advice on the distribution and the control of foot–and–mouth disease was sought by international organizations and by individual countries and was responsible for reducing the risk of spread of disease.

scholarly journals Evidence for Positive Selection in Foot-and-Mouth Disease Virus Capsid Genes From Field Isolates

Genetics ◽  
2001 ◽  
Vol 157 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Daniel T Haydon ◽  
Armanda D Bastos ◽  
Nick J Knowles ◽  
Alan R Samuel
Keyword(s):  
Amino Acid ◽  
Positive Selection ◽  
Disease Virus ◽  
Foot And Mouth Disease ◽  
Selective Advantage ◽  
Mouth Disease ◽  
Data Sets ◽  
African Buffalo ◽  
Mouth Disease Virus ◽  
Foot And Mouth

AbstractThe nature of selection on capsid genes of foot-and-mouth disease virus (FMDV) was characterized by examining the ratio of nonsynonymous to synonymous substitutions in 11 data sets of sequences obtained from six different serotypes of FMDV. Using a method of analysis that assigns each codon position to one of a number of estimated values of nonsynonymous to synonymous ratio, significant evidence of positive selection was identified in 5 data sets, operating at 1-7% of codon positions. Evidence of positive selection was identified in complete capsid sequences of serotypes A and C and in VP1 sequences of serotypes SAT 1 and 2. Sequences of serotype SAT-2 recovered from a persistently infected African buffalo also revealed evidence for positive selection. Locations of codons under positive selection coincide closely with those of antigenic sites previously identified with the use of monoclonal antibody escape mutants. The vast majority of codons are under mild to strong purifying selection. However, these results suggest that arising antigenic variants benefit from a selective advantage in their interaction with the immune system, either during the course of an infection or in transmission to individuals with previous exposure to antigen. Analysis of amino acid usage at sites under positive selection indicates that this selective advantage can be conferred by amino acid substitutions that share physicochemically similar properties.

scholarly journals Evolutionary Analysis of Structural Protein Gene VP1 of Foot-and-Mouth Disease Virus Serotype Asia 1

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Qingxun Zhang ◽  
Xinsheng Liu ◽  
Yuzhen Fang ◽  
Li Pan ◽  
Jianliang Lv ◽  
...  
Keyword(s):  
Positive Selection ◽  
Disease Virus ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Evolutionary Analysis ◽  
Structural Protein ◽  
Mouth Disease Virus ◽  
Virus Serotype ◽  
Foot And Mouth ◽  
Serotype Asia 1

Foot-and-mouth disease virus (FMDV) serotype Asia 1 was mostly endemic in Asia and then was responsible for economically important viral disease of cloven-hoofed animals, but the study on its selection and evolutionary process is comparatively rare. In this study, we characterized 377 isolates from Asia collected up until 2012, including four vaccine strains. Maximum likelihood analysis suggested that the strains circulating in Asia were classified into 8 different groups (groups I–VIII) or were unclassified (viruses collected before 2000). On the basis of divergence time analyses, we infer that the TMRCA of Asia 1 virus existed approximately 86.29 years ago. The result suggested that the virus had a high mutation rate (5.745 × 10−3substitutions/site/year) in comparison to the other serotypes of FMDV VP1 gene. Furthermore, the structural protein VP1 was under lower selection pressure and the positive selection occurred at many sites, and four codons (positions 141, 146, 151, and 169) were located in known critical antigenic residues. The remaining sites were not located in known functional regions and were moderately conserved, and the reason for supporting all sites under positive selection remains to be elucidated because the power of these analyses was largely unknown.

High resolution surface structure of foot-and-mouth disease virus

1978 ◽  
Vol 36 (2) ◽  
pp. 376-377
Author(s):  
S. S. Breese ◽  
H. L. Bachrach
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Surface Structure ◽  
Disease Virus ◽  
Potassium Phosphate ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Physical Measurements ◽  
Mouth Disease Virus ◽  
Foot And Mouth

Models for the structure of foot-and-mouth disease virus (FMDV) have been proposed from chemical and physical measurements (Brown, et al., 1970; Talbot and Brown, 1972; Strohmaier and Adam, 1976) and from rotational image-enhancement electron microscopy (Breese, et al., 1965). In this report we examine the surface structure of FMDV particles by high resolution electron microscopy and compare it with that of particles in which the outermost capsid protein VP3 (ca. 30, 000 daltons) has been split into smaller segments, two of which VP3a and VP3b have molecular weights of about 15, 000 daltons (Bachrach, et al., 1975).Highly purified and concentrated type A12, strain 119 FMDV (5 mg/ml) was prepared as previously described (Bachrach, et al., 1964) and stored at 4°C in 0. 2 M KC1-0. 5 M potassium phosphate buffer at pH 7. 5. For electron microscopy, 1. 0 ml samples of purified virus and trypsin-treated virus were dialyzed at 4°C against 0. 2 M NH4OAC at pH 7. 3, deposited onto carbonized formvar-coated copper screens and stained with phosphotungstic acid, pH 7. 3.

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