数字农科院2.0

Identification And Subcellular Localization Of Splicing Factor Arginine/Serine-Rich 10 In The Microsporidian Nosema Bombycis

文献类型： 外文期刊

作者： Zhang, ZL; Yao, MS; Zhu, GY; Chen, Y; Chen, Y; Sun, FZ; Zhang, YL; Wang, Q; Shen, ZY

作者机构：

关键词： Splicing Factor; Nosema Bombycis; Transcription Activity; Subcellular Localization

期刊名称： JOURNAL OF INVERTEBRATE PATHOLOGY

ISSN： 0022-2011

年卷期： 2020 年 174 卷

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收录情况： JCR（2021版）

摘要： Splicing factors are important components of RNA editing in eukaryotic organisms and can produce many functional and coding genes, which is an indispensable step for the correct expression of corresponding proteins. In this study, we identified splicing factor arginine/serine-rich 10 protein in the microsporidian Nosema bombycis and named it NbSRSF10. The NbSRSF10 gene contains a complete ORF of 1449 bp in length that encodes a 482-amino acid polypeptide. The isoelectric point (pI) of the protein encoded by NbSRSF10 gene was 4.94. NbSRSF10 has a molecular weight of 54.6 k(p) and has no signal peptide. NbSRSF10 is comprised of arginine (11.41%), glutamic acid (11.41%) and serine (9.54%) among the total amino acids, and 7 alpha-helix, 7 beta-sheet and 15 random coils in secondary structure, and contains 71 phosphorylation sites, 22 N-glycosylation sites and 20 O-glycosylation sites. The three-dimensional structure of NbSRSF10 is similar to that of transformer-2 beta of Homo sapiens (hTra2-beta). Indirect immunofluorescence showed that the NbSRSF10 is localized in the cytoplasm of the dormant microsporidian spore and is transferred to the nuclei when N. bombycis develops into the proliferative and sporogonic phase. qPCR revealed that the relative expression of NbSRSF10 increased in the meronts stage and was found at a relatively low level in the sporogonic phase of development of N. bombycis, and was upregulated again during infection in the host cell and early proliferative phase of second life cycle. These results suggested that the NbSRSF10 may participate in the whole life cycle and play an important role in transcription regulation of N. bombycis.

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