Publication Date:
2006-07-29
Description:
Comparative genomics of 45 epidemiologically varied variola virus isolates from the past 30 years of the smallpox era indicate low sequence diversity, suggesting that there is probably little difference in the isolates' functional gene content. Phylogenetic clustering inferred three clades coincident with their geographical origin and case-fatality rate; the latter implicated putative proteins that mediate viral virulence differences. Analysis of the viral linear DNA genome suggests that its evolution involved direct descent and DNA end-region recombination events. Knowing the sequences will help understand the viral proteome and improve diagnostic test precision, therapeutics, and systems for their assessment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Esposito, Joseph J -- Sammons, Scott A -- Frace, A Michael -- Osborne, John D -- Olsen-Rasmussen, Melissa -- Zhang, Ming -- Govil, Dhwani -- Damon, Inger K -- Kline, Richard -- Laker, Miriam -- Li, Yu -- Smith, Geoffrey L -- Meyer, Hermann -- Leduc, James W -- Wohlhueter, Robert M -- G0501257/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2006 Aug 11;313(5788):807-12. Epub 2006 Jul 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biotechnology Core Facility Branch, Division of Scientific Resources, National Center for Preparedness, Detection, and Control of Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30329, USA. jesposito@cdc.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16873609" target="_blank"〉PubMed〈/a〉
Keywords:
DNA, Viral/*genetics
;
Disease Outbreaks
;
*Evolution, Molecular
;
Gene Deletion
;
*Genetic Variation
;
*Genome, Viral
;
Genomics
;
Humans
;
Molecular Sequence Data
;
Open Reading Frames
;
Phylogeny
;
Proteome/analysis/genetics
;
Recombination, Genetic
;
Sequence Analysis, DNA
;
Smallpox/epidemiology/mortality/*virology
;
Variola virus/classification/*genetics/isolation & purification/pathogenicity
;
Viral Proteins/chemistry/genetics
;
Virulence/genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
