相关实验视频
Updated: Jun 23, 2026

10:55
Rescue of Recombinant Newcastle Disease Virus from cDNA
Published on: October 12, 2013
不同的途径调解了人类IFN-alpha 1和IFN-beta基因的病毒诱导性
N J MacDonald1, D Kuhl, D Maguire
1Institut für Molekularbiologie I, Universität Zürich, Switzerland.
Cell
|March 9, 1990
概括
多元化GAAANN序列调节病毒诱导性促进体. 不同类型的这些序列对干扰子 (IFN) 和IRF-1产生不同的反应,影响基因转录.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 遗传学 是一个遗传学.
背景情况:
- 病毒诱导性促进体通常含有重复序列,如GAAANN.
- 了解这些调节元素对于破译宿主-病原体相互作用至关重要.
研究的目的:
- 在病毒诱导性中区分各种 (GAAANN) 4序列类型的功能作用.
- 为了确定与这些序列相关的特定转录因子.
主要方法:
- 分析 (GAAANN) 4序列变异及其对促进子活动的影响.
- 电泳运动转移试验 (EMSAs) 用于识别蛋白质结合.
主要成果:
- 确定了三种类型的 (GAAANN) 4序列,它们对干扰素 (IFN) 和IRF-1的反应有所不同.
- I型序列介于IFN/IRF-1反应和基因沉默.
- 第二类和第三类序列表现出不同的转录模式,并结合特定因子 (TG蛋白和IEFga,分别).
- IFN-β和IFN-α 1促进剂利用这些元素的不同组合,包括NF-kappa B.
结论:
- (GAAANN) 4序列多元化产生了病毒反应的独特调节元素.
- 类型I,类型II和NF-kappa B元素代表着在病毒诱导中融合的单独途径.
相关概念视频
NF-κB-dependent Signaling Pathway
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-kB-dependent Signaling Pathway
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
Immune Response Against Viral Pathogens
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Inhibitors of Viral Protein Synthesis
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
Inhibitors Of Virion Release
Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
Inhibitors of Virion Maturation and Assembly
As part of their replication cycle, certain viruses synthesize long precursor proteins called polyproteins within infected host cells. In human immunodeficiency virus (HIV), two major polyproteins are produced: Gag and Gag-Pol. The Gag polyprotein supplies the structural components of the virus, while Gag-Pol includes essential viral enzymes such as reverse transcriptase, integrase, and protease. After synthesis, these polyproteins move to the host cell membrane, where they assemble into an...

