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Title: Genomic organization and putative promoters of highly conserved glutathione S-transferases originating by alternative splicing in Anopheles dirus
Authors: Saengtong Pongjaroenkit
Kanya Jirajaroenrat
Chanikarn Boonchauy
Umnaj Chanama
Somphob Leetachewa
La aied Prapanthadara
Albert J. Ketterman
Mahidol University
The Institute of Science and Technology for Research and Development, Mahidol University
Chiang Mai University
Keywords: Agricultural and Biological Sciences;Biochemistry, Genetics and Molecular Biology
Issue Date: 1-Jan-2001
Citation: Insect Biochemistry and Molecular Biology. Vol.31, No.1 (2001), 75-85
Abstract: The genomic DNA of a GST class I alternative splicing gene has been characterized from Anopheles dirus, a Thai malaria vector. This gene organization is highly conserved in An. dirus and Anopheles gambiae (aggstlα), with >80% nucleotide identity in the coding region. Their gene organization contains six exons for four mature GST transcripts, which share exon 1 and exon 2 but vary between four different exon 3 sequences (exon 3A-3D). The deduced amino acid sequence of the GST transcripts from these two genes also shows very high conservation, with 85-93% identity for each orthologous gene. Two putative promoters and possible regulatory elements were predicted by a combination of the TSSW and MatInspector programs. The Ad214 promoter is proposed to be involved in developmental stage regulation. The Ad2112 promoter would appear to respond to intra- or extracellular stimuli. These two Anopheline species appear to have diverged in the distant past based on gene neighbors and phylogenetic data, yet these GST genes are still conserved. Therefore it is highly probable that this GST gene organization has one or more important roles. © 2001 Elsevier Science Ltd.
ISSN: 09651748
Appears in Collections:Scopus 2001-2005

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