Characterization of the 3-HKT gene in important malaria vectors in India, viz: Anopheles culicifacies and Anopheles stephensi (Diptera: Culicidae)

The 3-hydroxykynurenine transaminase (3-HKT) gene plays a vital role in the development of malaria parasites by participating in the synthesis of xanthurenic acid, which is involved in the exflagellation of microgametocytes in the midgut of malaria vector species. The 3-HKT enzyme is involved in the...

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Main Authors: R Vidhyanandhini, N Pradeep Kumar
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2008-09-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762008000600014
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author R Vidhyanandhini
N Pradeep Kumar
author_facet R Vidhyanandhini
N Pradeep Kumar
author_sort R Vidhyanandhini
collection DOAJ
description The 3-hydroxykynurenine transaminase (3-HKT) gene plays a vital role in the development of malaria parasites by participating in the synthesis of xanthurenic acid, which is involved in the exflagellation of microgametocytes in the midgut of malaria vector species. The 3-HKT enzyme is involved in the tryptophan metabolism of Anophelines. The gene had been studied in the important global malaria vector, Anopheles gambiae. In this report, we have conducted a preliminary investigation to characterize this gene in the two important vector species of malaria in India, Anopheles culicifacies and Anopheles stephensi. The analysis of the genetic structure of this gene in these species revealed high homology with the An. gambiae gene. However, four non-synonymous mutations in An. stephensi and seven in An. culicifacies sequences were noted in the exons 1 and 2 of the gene; the implication of these mutations on enzyme structure remains to be explored.
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spelling doaj.art-82f37cc36b2b457da0bdaa65490180d02023-08-02T09:28:20ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602008-09-01103659559710.1590/S0074-02762008000600014Characterization of the 3-HKT gene in important malaria vectors in India, viz: Anopheles culicifacies and Anopheles stephensi (Diptera: Culicidae)R VidhyanandhiniN Pradeep KumarThe 3-hydroxykynurenine transaminase (3-HKT) gene plays a vital role in the development of malaria parasites by participating in the synthesis of xanthurenic acid, which is involved in the exflagellation of microgametocytes in the midgut of malaria vector species. The 3-HKT enzyme is involved in the tryptophan metabolism of Anophelines. The gene had been studied in the important global malaria vector, Anopheles gambiae. In this report, we have conducted a preliminary investigation to characterize this gene in the two important vector species of malaria in India, Anopheles culicifacies and Anopheles stephensi. The analysis of the genetic structure of this gene in these species revealed high homology with the An. gambiae gene. However, four non-synonymous mutations in An. stephensi and seven in An. culicifacies sequences were noted in the exons 1 and 2 of the gene; the implication of these mutations on enzyme structure remains to be explored.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-027620080006000143-hydroxykynurenine transaminase genexanthurenic acidAnopheles
spellingShingle R Vidhyanandhini
N Pradeep Kumar
Characterization of the 3-HKT gene in important malaria vectors in India, viz: Anopheles culicifacies and Anopheles stephensi (Diptera: Culicidae)
Memorias do Instituto Oswaldo Cruz
3-hydroxykynurenine transaminase gene
xanthurenic acid
Anopheles
title Characterization of the 3-HKT gene in important malaria vectors in India, viz: Anopheles culicifacies and Anopheles stephensi (Diptera: Culicidae)
title_full Characterization of the 3-HKT gene in important malaria vectors in India, viz: Anopheles culicifacies and Anopheles stephensi (Diptera: Culicidae)
title_fullStr Characterization of the 3-HKT gene in important malaria vectors in India, viz: Anopheles culicifacies and Anopheles stephensi (Diptera: Culicidae)
title_full_unstemmed Characterization of the 3-HKT gene in important malaria vectors in India, viz: Anopheles culicifacies and Anopheles stephensi (Diptera: Culicidae)
title_short Characterization of the 3-HKT gene in important malaria vectors in India, viz: Anopheles culicifacies and Anopheles stephensi (Diptera: Culicidae)
title_sort characterization of the 3 hkt gene in important malaria vectors in india viz anopheles culicifacies and anopheles stephensi diptera culicidae
topic 3-hydroxykynurenine transaminase gene
xanthurenic acid
Anopheles
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762008000600014
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AT npradeepkumar characterizationofthe3hktgeneinimportantmalariavectorsinindiavizanophelesculicifaciesandanophelesstephensidipteraculicidae