Evolutionary Pattern of Asian HIV-1 Subtype B from 1990 to 2007: In Silico Analysis Based on Envelop Protein

HIV-1 envelop gene is a major target for vaccine development. Envelop protein and its V3 loop is shown to be important determinant of HIV-1 pathogenecity. Herein, the evolutionary pattern of most prevalent HIV-1 subtype B in Asia is determined by analyzing envelop protein and V3 domain based on the...

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Main Authors: Sobia Kanwal, Tariq Mahmood
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/2012/978917
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author Sobia Kanwal
Tariq Mahmood
author_facet Sobia Kanwal
Tariq Mahmood
author_sort Sobia Kanwal
collection DOAJ
description HIV-1 envelop gene is a major target for vaccine development. Envelop protein and its V3 loop is shown to be important determinant of HIV-1 pathogenecity. Herein, the evolutionary pattern of most prevalent HIV-1 subtype B in Asia is determined by analyzing envelop protein and V3 domain based on the 40 randomly selected sequences of HIV-1 from database (Los Alamos), divided into four groups since 1990–2007. Construction of envelop protein phylogeny by using MEGA 5 exhibit the active mutation pattern, increase in potential N-glycosylation sites which were predicted by using online software SignalP-NN. An online available tool Drawgram was used for multiple sequence alignment (MSA) of HIV-1 subtype B envelop region and V3 loop while the alignment was rechecked by using CLUSTAL W and further was analyzed for GPGX motif and conserved region in V3 loop. Variation at fourth position of the GPGX motif and 60% conservation was found in V3 loop. Hence, this diversifying pattern of envelop protein in the Asia formulates the HIV-1 strains more pathogenic during the period of 17 years. These findings might help in understanding significant structural and functional constrains of the mutant viral strains and ultimately in vaccine development.
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spelling doaj-art-d7b4c089474541d491644c45ef3028922025-02-03T06:00:25ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/978917978917Evolutionary Pattern of Asian HIV-1 Subtype B from 1990 to 2007: In Silico Analysis Based on Envelop ProteinSobia Kanwal0Tariq Mahmood1Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, PakistanFaculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, PakistanHIV-1 envelop gene is a major target for vaccine development. Envelop protein and its V3 loop is shown to be important determinant of HIV-1 pathogenecity. Herein, the evolutionary pattern of most prevalent HIV-1 subtype B in Asia is determined by analyzing envelop protein and V3 domain based on the 40 randomly selected sequences of HIV-1 from database (Los Alamos), divided into four groups since 1990–2007. Construction of envelop protein phylogeny by using MEGA 5 exhibit the active mutation pattern, increase in potential N-glycosylation sites which were predicted by using online software SignalP-NN. An online available tool Drawgram was used for multiple sequence alignment (MSA) of HIV-1 subtype B envelop region and V3 loop while the alignment was rechecked by using CLUSTAL W and further was analyzed for GPGX motif and conserved region in V3 loop. Variation at fourth position of the GPGX motif and 60% conservation was found in V3 loop. Hence, this diversifying pattern of envelop protein in the Asia formulates the HIV-1 strains more pathogenic during the period of 17 years. These findings might help in understanding significant structural and functional constrains of the mutant viral strains and ultimately in vaccine development.http://dx.doi.org/10.1100/2012/978917
spellingShingle Sobia Kanwal
Tariq Mahmood
Evolutionary Pattern of Asian HIV-1 Subtype B from 1990 to 2007: In Silico Analysis Based on Envelop Protein
The Scientific World Journal
title Evolutionary Pattern of Asian HIV-1 Subtype B from 1990 to 2007: In Silico Analysis Based on Envelop Protein
title_full Evolutionary Pattern of Asian HIV-1 Subtype B from 1990 to 2007: In Silico Analysis Based on Envelop Protein
title_fullStr Evolutionary Pattern of Asian HIV-1 Subtype B from 1990 to 2007: In Silico Analysis Based on Envelop Protein
title_full_unstemmed Evolutionary Pattern of Asian HIV-1 Subtype B from 1990 to 2007: In Silico Analysis Based on Envelop Protein
title_short Evolutionary Pattern of Asian HIV-1 Subtype B from 1990 to 2007: In Silico Analysis Based on Envelop Protein
title_sort evolutionary pattern of asian hiv 1 subtype b from 1990 to 2007 in silico analysis based on envelop protein
url http://dx.doi.org/10.1100/2012/978917
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