Nucleotide sequences of the VP1 capsid proteins of wild poliovirus types 1 and 3 from epidemic areas of Brazil
Braz. j. med. biol. res
;
23(1): 1-5, 1990. ilus
Article
in English
| LILACS
| ID: lil-83163
ABSTRACT
The nucleotide sequences encoding the capsid protein VP1 were determined for the wild polioviruses of serotypes 1 and 3 endemic to the northeastern region of Brazil. Compared with the corresponding Sabin vaccine strain sequences, the wild isolates differed at 20%(type 1) and 22%(type 3) of their nucleotide positions, and in 7%(type 1) and 11%(type 3) of their amino acid residues. The highest degree of amino acid heterogeneity occurred within the amino-terminal residues of the VP1 proteins. Intratypic amino acid differences also occurred in VP1 surface residues that form parts of antigenic sites for neutralizing antibodies
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Index:
LILACS (Americas)
Main subject:
Base Sequence
/
Capsid
/
Poliovirus
/
Genes, Viral
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
1990
Type:
Article
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