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Structural basis of RNA polymerase complexes in African swine fever virus

文献类型: 外文期刊

作者: Zhu, Guoliang 1 ; Xi, Fei 1 ; Zeng, Wuxia 1 ; Zhao, Yifei 1 ; Cao, Weijun 1 ; Liu, Chen 1 ; Yang, Fan 1 ; Ru, Yi 1 ; Xiao, Shuqi 1 ; Zhang, Shilei 1 ; Liu, Huanan 1 ; Tian, Hong 1 ; Yang, Fayu 1 ; Lu, Biao 1 ; Sun, Shukai 1 ; Song, Haiyang 1 ; Sun, Bozhang 1 ; Zhao, Xiaoyi 1 ; Tang, Lijie 3 ; Li, Kangli 1 ; He, Jijun 1 ; Guo, Jianhong 1 ; Zhu, Yun 4 ; Zhu, Zixiang 1 ; Sun, Fei 4 ; Zheng, Haixue 1 ;

作者机构: 1.Lanzhou Univ, Chinese Acad Agr Sci, State Key Lab Anim Dis Control & Prevent, Coll Vet Med,Lanzhou Vet Res Inst, Lanzhou, Peoples R China

2.Chinese Acad Agr Sci, Lanzhou Vet Res Inst, African Swine Fever Reg Lab China, Lanzhou, Peoples R China

3.Northeast Agr Univ, Coll Vet Med, Dept Prevent Vet Med, Harbin, Heilongjiang, Peoples R China

4.Chinese Acad Sci, Inst Biophys, CAS Ctr Excellence Biomacromolecules, Natl Lab Biomacromolecules, Beijing, Peoples R China

5.Univ Chinese Acad Sci, Sch Life Sci, Beijing, Peoples R China

6.Gansu Prov Res Ctr Basic Disciplines Pathogen Biol, Lanzhou, Peoples R China

期刊名称:NATURE COMMUNICATIONS ( 影响因子:15.7; 五年影响因子:17.2 )

ISSN:

年卷期: 2025 年 16 卷 1 期

页码:

收录情况: SCI

摘要: African swine fever virus is highly contagious and causes a fatal infectious disease in pigs, resulting in a significant global impact on pork supply. The African swine fever virus RNA polymerase serves as a crucial multifunctional protein complex responsible for genome transcription and regulation. Therefore, it is essential to investigate its structural and functional characteristics for the prevention and control of African swine fever. Here, we determine the structures of endogenous African swine fever virus RNA polymerase in both nucleic acid-free and elongation states. The African swine fever virus RNA polymerase shares similarities with the core of typical RNA polymerases, but possesses a distinct subunit M1249L. Notably, the dynamic binding mode of M1249L with RNA polymerase, along with the C-terminal tail insertion of M1249L in the active center of DNA-RNA scaffold binding, suggests the potential of M1249L to regulate RNA polymerase activity within cells. These results are important for understanding the transcription cycle of the African swine fever virus and for developing antiviral strategies.

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