Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes

The glycoprotein E (gE) gene is a virulence-associated gene of pseudorabies virus (PrV). This paper reports the first documented gE sequence analysis of a locally derived PrV. A comparative sequence analysis with other herpesviral gE homologues was also performed to give an insight on where it stand...

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Main Authors: Allaudin, Zeenathul Nazariah, Mohd Lila, Mohd Azmi, Abdul Rahman, Sheikh Omar, Ideris, Aini, Bahaman, Abdul Rani, Mutalib, Abdul Rahim
Format: Article
Language:English
Published: Veterinary Association Malaysia 2007
Online Access:http://psasir.upm.edu.my/id/eprint/4669/1/100.%204669.pdf
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author Allaudin, Zeenathul Nazariah
Mohd Lila, Mohd Azmi
Abdul Rahman, Sheikh Omar
Ideris, Aini
Bahaman, Abdul Rani
Mutalib, Abdul Rahim
author_facet Allaudin, Zeenathul Nazariah
Mohd Lila, Mohd Azmi
Abdul Rahman, Sheikh Omar
Ideris, Aini
Bahaman, Abdul Rani
Mutalib, Abdul Rahim
author_sort Allaudin, Zeenathul Nazariah
collection UPM
description The glycoprotein E (gE) gene is a virulence-associated gene of pseudorabies virus (PrV). This paper reports the first documented gE sequence analysis of a locally derived PrV. A comparative sequence analysis with other herpesviral gE homologues was also performed to give an insight on where it stands among the pool of genes. The gE gene of TK gE PrV features a typical type 1 membrane protein which starts with the initiator methionine and followed directly with a 27-amino-acids signal sequence. Basically the gene could be divided into three distinct functional domains: a 429-amino-acids ectodomain, a 26-amino-acid hydrophobic transmembrane domain and a 123-amino-acid, highly charged cytoplasmic domain. A high degree of gE gene conservation was shared between TK gE+ PrV and other PrV strains. Only 23 to 31% homology was found when compared among the gE proteins of alphaherpesvirus from diverse animals. Despite the low overall level of identity, considerable similarity of cystein rich regions was observed among gE genes, indicating some important sequences for the structure of these glyproteins. Although, the gE of PrV strains have closely conserved predicted N-Linked glycosylation sites, they have no counterparts in the homologous proteins of other alphaherpesviruses. Comparison of amino acid sequences with gE homologs indicated a greater diversity of sequences in the N- terminal region of the protein. It also highlighted several features of the gE protein conserved throughout the herpesvirus family which is also shared by TK gE+ PrV. Characterisation of the local Prv gE at molecular level may facilitate the construction of recombinant or chimeric PrV as vehicles for the delivery of vaccine antigens to the host.
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spelling upm.eprints-46692019-10-30T04:06:33Z http://psasir.upm.edu.my/id/eprint/4669/ Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes Allaudin, Zeenathul Nazariah Mohd Lila, Mohd Azmi Abdul Rahman, Sheikh Omar Ideris, Aini Bahaman, Abdul Rani Mutalib, Abdul Rahim The glycoprotein E (gE) gene is a virulence-associated gene of pseudorabies virus (PrV). This paper reports the first documented gE sequence analysis of a locally derived PrV. A comparative sequence analysis with other herpesviral gE homologues was also performed to give an insight on where it stands among the pool of genes. The gE gene of TK gE PrV features a typical type 1 membrane protein which starts with the initiator methionine and followed directly with a 27-amino-acids signal sequence. Basically the gene could be divided into three distinct functional domains: a 429-amino-acids ectodomain, a 26-amino-acid hydrophobic transmembrane domain and a 123-amino-acid, highly charged cytoplasmic domain. A high degree of gE gene conservation was shared between TK gE+ PrV and other PrV strains. Only 23 to 31% homology was found when compared among the gE proteins of alphaherpesvirus from diverse animals. Despite the low overall level of identity, considerable similarity of cystein rich regions was observed among gE genes, indicating some important sequences for the structure of these glyproteins. Although, the gE of PrV strains have closely conserved predicted N-Linked glycosylation sites, they have no counterparts in the homologous proteins of other alphaherpesviruses. Comparison of amino acid sequences with gE homologs indicated a greater diversity of sequences in the N- terminal region of the protein. It also highlighted several features of the gE protein conserved throughout the herpesvirus family which is also shared by TK gE+ PrV. Characterisation of the local Prv gE at molecular level may facilitate the construction of recombinant or chimeric PrV as vehicles for the delivery of vaccine antigens to the host. Veterinary Association Malaysia 2007-07 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/4669/1/100.%204669.pdf Allaudin, Zeenathul Nazariah and Mohd Lila, Mohd Azmi and Abdul Rahman, Sheikh Omar and Ideris, Aini and Bahaman, Abdul Rani and Mutalib, Abdul Rahim (2007) Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes. Jurnal Veterinar Malaysia, 19 (1). pp. 7-16. ISSN 9128-2506
spellingShingle Allaudin, Zeenathul Nazariah
Mohd Lila, Mohd Azmi
Abdul Rahman, Sheikh Omar
Ideris, Aini
Bahaman, Abdul Rani
Mutalib, Abdul Rahim
Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes
title Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes
title_full Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes
title_fullStr Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes
title_full_unstemmed Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes
title_short Pseudorabies virus glyprotein E gene: sequence analysis and relationship to other homologous genes
title_sort pseudorabies virus glyprotein e gene sequence analysis and relationship to other homologous genes
url http://psasir.upm.edu.my/id/eprint/4669/1/100.%204669.pdf
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