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During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
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肉PRMT3可以促进IBDV复制.

Zhixuan Xiong1, Jingjing Cao2, Mengchen Xiu3

  • 1Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Qingshan Lake, Nanchang, 330045, PR China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China.

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概括

蛋白氨酸甲基转移酶 (PRMTs) 抑制干扰素的产生,有助于病毒复制. 通过抑制干扰素信号传递,PRMT3 特别支持传染病病病毒 (IBDV) 复制,提供新的治疗点.

关键词:
在IBDV中,IBDV是IBDV.在PRMT3中使用.这些都是肉肉.促进 促进 促进干扰子-β的干扰.

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科学领域:

  • 免疫学 免疫学 免疫学
  • 病毒学 病毒学
  • 分子生物学分子生物学

背景情况:

  • 蛋白质氨酸甲基转移酶 (PRMT) 在哺乳动物的信号通路中至关重要,包括抗病毒反应.
  • 肉PRMTs在干扰素生产和病毒相互作用中的特定作用尚不清楚.

研究的目的:

  • 调查肉PRMT在干扰素生产中的功能及其在传染性毛囊病病毒 (IBDV) 复制中的作用.
  • 阐明PRMTs在MDA5-MAVS-TBK1信号通路中的参与.

主要方法:

  • 在dSRNA或MDA5刺激后,研究了PRMT在干扰素生产中的功能.
  • 分析了PRMT与IBDV病毒蛋白VP3的同位化.
  • 检查了PRMT3的表达,其在IBDV复制中的作用,使用宫外表达和SGC-707抑制,以及PRMT3沉默的影响.

主要成果:

  • 肉PRMTs抑制了dSRNA或MDA5.5诱导的干扰素的产生.
  • 在MDA5-MAVS-TBK1干扰素诱导途径的不同阶段,PRMT参与其中.
  • 在IBDV感染期间,PRMT3被上调,与VP3同位,并支持IBDV复制.
  • 抑制PRMT3会增强干扰素的产生,并抑制IBDV的复制.

结论:

  • 类PRMT,特别是PRMT3,抑制干扰素信号传递以促进IBDV复制.
  • PRMT3是IBDV病变的一个关键因素,代表了抗病毒策略的潜在目标.