Crosstalk of Brucella Abortus Nucleomodulin BspG and Host DNA Replication Process/mitochondrial Respiratory Pathway Promote Anti-Apoptosis and Infection
Veterinary microbiology(2022)
摘要
The secretory proteins of Brucella mediate the expression of the bacterium in the host, thereby facilitating intracellular parasitism. With the exception of the recently reported BspJ, the Brucella nucleomodulin has not yet been characterized. We defined the Brucella nucleomodulin BspG and verified six proteins (PCBP1, KMT5C, NDUFS6, PCNA, CIAO2B, and SDHB) that interacted with BspG using a yeast two-hybrid assay and co-immunoprecipitation (CO-IP) screening. The deletion of BspG decreased the intracellular proliferation of B. abortus in both in vivo and in vitro experiments. The analysis found that these interacting proteins were related to energy generation, gene expression, and apoptosis of host cells. The crosstalk between B. abortus nucleomodulin BspG and host DNA replication/mitochondrial respiratory pathways promotes anti-apoptosis and infection, but the mechanism needs additional study.
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关键词
Brucella abortus,Nucleomodulin BspG,Yeast two-hybrid,Co-immunoprecipitation,Apoptosis,Intracellular survival
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