Delivery, structure, and function of bacterial genotoxins.
Delivery, structure, and function of bacterial genotoxins.
复制标题
细菌基因毒素的传递、结构和功能。
DOI:
10.1080/21505594.2022.2097417
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发表时间:
2022-12
期刊:
影响因子:
5.2
通讯作者:
中科院分区:
文献类型:
--
作者:
Bacterial genotoxins are peptide or protein virulence factors produced by several pathogens, which make single-strand breaks (SSBs) and/or double-strand DNA breaks (DSBs) in the target host cells. If host DNA inflictions are not resolved on time, host cell apoptosis, cell senescence, and/or even bacterial pathogen-related cancer may occur. Two multi-protein AB toxins, cytolethal distending toxin (CDT) produced by over 30 bacterial pathogens and typhoid toxin from Salmonella Typhi, as well as small polyketide-peptides named colibactin that causes the DNA interstrand cross-linking and subsequent DSBs is the most well-characterized bacterial genotoxins. Using these three examples, this review discusses the mechanisms by which these toxins deliver themselves into the nucleus of the target host cells and exert their genotoxic functions at the structural and functional levels.
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