Structure and expression of tandemly duplicated xanthine dehydrogenase genes of the silkworm (Bombyx mori).
[No authors listed]
摘要
Xanthine dehydrogenase (XDH) is a molybdoenzyme which catalyses oxidation of xanthine and hypoxanthine to uric acid. We isolated genomic clones of silkworm (Bombyx mori) XDH genes (BmXDH1 and BmXDH2). The BmXDH2 gene is located upstream from the BmXDH1 gene and they show a tandemly duplicated structure. Both BmXDH genes were expressed in the fat body and Malpighian tubules, whereas only the BmXDH1 gene was expressed in the midgut. Phylogenetic analysis indicates that BmXDH gene duplication occurred after the divergence of the silkworm and dipteran species. Intron insertion site comparison shows that some introns were lost during insect XDH gene evolution.
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基因功能
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原始数据
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文献解读
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