Literature DB >> 8893798

Sequence analysis of pre-S/S gene of hepatitis B virus strains of genotypes A, D, and F isolated in Brazil.

M T Moraes1, S A Gomes, C Niel.   

Abstract

The nucleotide sequences of pre-S/S gene of nine hepatitis B virus strains (3 adw2, 3 ayw2, and 3 ayw 3) and of pre-S region of two adw4 isolates from Rio de Janeiro, Brazil, were determined. Phylogenetic analysis allowed to classify these strains into three genotypes, A, D and F, reflecting the diverse origin of the population. However, strains belonging to a same genotype were separated by a short evolutionary distance. The presence of aminoacid mutations into Pre-S region not found in hepatitis B viruses isolated in other parts of the world is described.

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Year:  1996        PMID： 8893798     DOI： 10.1007/bf01718299

Source DB:  PubMed          Journal:  Arch Virol        ISSN： 0304-8608            Impact factor:   2.574


  16 in total

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Authors:  H Norder; B Hammas; S Löfdahl; A M Couroucé; L O Magnius
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Authors:  A M Couroucé-Pauty; J M Lemaire; J F Roux
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4.  Distribution of HBsAg subtypes in the world.

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Journal:  J Virol       Date:  1987-10       Impact factor: 5.103

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Authors:  H Norder; A M Couroucé; L O Magnius
Journal:  Virology       Date:  1994-02       Impact factor: 3.616

7.  Infectious hepatitis B virus variant defective in pre-S2 protein expression in a chronic carrier.

Authors:  D Fernholz; P R Galle; M Stemler; M Brunetto; F Bonino; H Will
Journal:  Virology       Date:  1993-05       Impact factor: 3.616

8.  Identification of a new hepatitis B virus (HBV) genotype from Brazil that expresses HBV surface antigen subtype adw4.

Authors:  H Naumann; S Schaefer; C F Yoshida; A M Gaspar; R Repp; W H Gerlich
Journal:  J Gen Virol       Date:  1993-08       Impact factor: 3.891

9.  Genetic conservation within subtypes in the hepatitis B virus pre-S2 region.

Authors:  K Kidd-Ljunggren; A M Couroucé; M Oberg; A H Kidd
Journal:  J Gen Virol       Date:  1994-06       Impact factor: 3.891

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Authors:  M Vaudin; A J Wolstenholme; K N Tsiquaye; A J Zuckerman; T J Harrison
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3.  Low frequency of mutations in the core promoter and precore regions of hepatitis B virus in anti-HBe positive Brazilian carriers.

Authors:  L De Castro; C Niel; S A Gomes
Journal:  BMC Microbiol       Date:  2001-07-06       Impact factor: 3.605

4.  An in-house real-time polymerase chain reaction: standardisation and comparison with the Cobas Amplicor HBV monitor and Cobas AmpliPrep/Cobas TaqMan HBV tests for the quantification of hepatitis B virus DNA.

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5.  Hepatitis B virus: molecular genotypes and HBeAg serological status among HBV-infected patients in the southeast of Brazil.

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Journal:  BMC Infect Dis       Date:  2009-09-08       Impact factor: 3.090

6.  Hepatitis B virus genotypes and resistance mutations in patients under long term lamivudine therapy: characterization of genotype G in Brazil.

Authors:  Marcelle Bottecchia; Francisco J D Souto; Kycia M R O; Marcia Amendola; Carlos E Brandão; Christian Niel; Selma A Gomes
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7.  Distribution of HBV subgenotypes in Ribeirão Preto, Southeastern Brazil: a region with history of intense Italian immigration.

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  7 in total

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