相关实验视频
Updated: Jul 20, 2025

13:00
Engineering Antiviral Agents via Surface Plasmon Resonance
Published on: June 14, 2022
2.4K
在病毒感染中的关酸盐结合蛋白
Simran Chhabra1, Manjula Kalia1
1Virology Research Group, Regional Centre for Biotechnology, NCR Biotech Science Cluster, Faridabad 121001, India.
Biochemical Society transactions
|August 3, 2023
概括
关氨酸结合蛋白 (GBP) 是重要的免疫蛋白,在抗病毒防御中发挥着新兴的作用. 本综述探讨了它们在病毒感染期间的各种功能,机制和相互作用.
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:
- 关酸盐结合蛋白 (GBP) 是干扰素诱导的GTPases,在抗微生物功能和瘤抑制方面具有既定的作用.
- 虽然它们在细菌感染和炎症酶激活中的作用是已知的,但它们在病毒感染中的功能不太了解,并且是活跃的研究领域.
研究的目的:
- 在病毒感染的背景下,审查瓜尼酸结合蛋白 (GBPs) 的新兴和多方面的作用.
- 讨论GBPs使用的各种抗病毒机制,包括抑制病毒复制和蛋白质降解.
- 要突出病毒蛋白和GBP之间的复杂相互作用,包括GBP功能的病毒对抗性.
主要方法:
- 对关酸结合蛋白 (GBP) 和病毒感染现有研究的文献综述.
- 对GBP抗病毒作用的报告机制的分析.
- 讨论关于GBP在干扰素和病毒病变过程中的炎症中的作用的相互矛盾的报告.
主要成果:
- GBPs表现出多样化的抗病毒功能,通过依赖或独立于GTP结合/水解和异化的机制起作用.
- 已记录的抗病毒作用包括抑制病毒RNA/蛋白质合成,阻断糖蛋白加工,促进病毒蛋白质降解.
- 已经证明病毒蛋白与特定的GBP相互作用和对抗,使其抗病毒作用复杂化.
结论:
- 关酸结合蛋白 (GBP) 在病毒感染中的功能复杂多样,具有亲病毒和抗病毒活性.
- 需要进一步的研究,以充分阐明GBP招募到病毒复制复合物的精确机制和功能影响.
- 了解GBP-病毒相互作用对于开发针对这些免疫GTPase的新型抗病毒策略至关重要.
相关概念视频
Viral Structure
62.5K
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
62.5K
Immune Response Against Viral Pathogens
826
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...
826
Leaky Scanning
5.2K
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...
5.2K
Viruses with RNA Genomes
56
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
56
GTPases and their Regulation
8.4K
Guanine nucleotide-binding proteins (G-proteins), also known as GTPases, are a superfamily of proteins that regulate many cellular processes, such as cell signaling, vesicular transport, and the regulation of cell shape and motility. Mutation or dysfunction of these proteins can lead to disease. There are around 40,000 known G-proteins that can broadly be classified into two groups ‒ small G-proteins consisting of a single domain and large multi-domain G-proteins.
Large G-proteins,...
Large G-proteins,...
8.4K
GPCRs Regulate Adenylyl Cylase Activity
5.7K
Some GPCRs transmit signals through adenylyl cyclase (AC), a transmembrane enzyme. AC helps synthesize second messenger cyclic adenosine monophosphate (cAMP). AC catalyzes cyclization reaction and converts ATP to cAMP by releasing a pyrophosphate. The pyrophosphate is further hydrolyzed to phosphate by the enzyme pyrophosphatase, which drives cAMP synthesis to completion. However, cAMP is rapidly degraded to 5′ AMP by the enzymes phosphodiesterase (PDE), preventing overstimulation of...
5.7K

