EXPRESSION PROFILING OF NOVEL BACTERIA-INDUCED GENES FROM THE SILKWORM, Bombyx mori
EXPRESSION PROFILING OF NOVEL BACTERIA-INDUCED GENES FROM THE SILKWORM, Bombyx mori
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DOI：
10.1002/arch.20347
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发表时间：
2010-03-01
影响因子：
2.2
通讯作者：
Yamakawa, Minoru
中科院分区：
文献类型：
--
作者：
Tanaka, Hiromitsu;Suzuki, Noriko;Yamakawa, Minoru
In this study, we have newly identified three bacteria-induced genes from the silkworm Bombyx mori by quantitative reverse transcriptase-polymerase chain reaction. One of these, eukaryotic initiation factor 4E-1 (eIF4E-1), is assumed to encode an eIF4E family, which plays a role in the initiation of translation as a mRNA cap-binding protein. The second gene is BmFOXG1, belonging to a family of forkhead transcription factors, FOXG1. The third gene is MBF2-related (MBF2-R) whose product has high homology to a co-activator protein MBF2 from B. mori. Although BmFOXG1 was up-regulated in the fat body in response to three kinds of bacteria, Escherichia coli, Staphylococcus aureus, and Bacillus subtilis, eIF4E-1 and MBF2-R were up-regulated by E. coli and B. subtilis, but not S. aureus, suggesting that bacteria possessing meso-diaminopimelic acid-containing peptidoglycan but not lysine-containing peptidoglycan activate eIF4E-1 and MBF2-R, probably through a conserved immune deficiency pathway. We further profiled the expression of three genes in different tissues and a silkworm cell line, NIAS-Bm-aff3, in response to bacteria, and at different times after bacterial challenge in the fat body. (C) 2010 Wiley Periodicals, Inc.
