冠状病毒肺炎的包容膜蛋白Cpn0308与宿主蛋白ACBD3相互作用
Liang Ma1,2,3, Xiao-Hui Jia1,2, Zhe Gao1,2
1Pathogen Biology and Immunology Research Institute, Hebei North University, Zhangjiakou, Hebei, China.
Journal of bacteriology
|December 26, 2024
概括
克拉米迪亚肺炎蛋白Cpn0308与宿主蛋白ACBD3结合,该蛋白参与脂质稳定. 这种相互作用可能有助于细菌获得宿主脂质以求生存和发病.
科学领域:
- 微生物学 微生物学
- 细胞生物学 细胞生物学
- 细菌病原体的产生
背景情况:
- 冠状病毒肺炎是一种有义务的细胞内细菌,需要宿主细胞真空进行复制.
- 包容膜蛋白调解了克拉米迪亚和宿主细胞之间的相互作用.
- 目前尚不清楚C. pneumoniae包容膜蛋白Cpn0308的功能.
研究的目的:
- 通过确定其宿主细胞结合伙伴来研究Cpn0308的功能.
- 为了阐明Cpn0308在Chlamydia pneumoniae病变发生中的作用.
主要方法:
- 酵母二杂交试验用于选Cpn0308相互作用蛋白.
- 同免疫沉和GST拉下测试以确认蛋白质相互作用.
- 聚焦光显微镜用于观察宿主细胞中蛋白质的同定位.
主要成果:
- 发现Cpn0308与含有3 (ACBD3) 的结合域3 (ACBD3) 的宿主蛋白-辅酶A结合域结合.
- 使用生物化学测定证实了Cpn0308和ACBD3之间的相互作用.
- 观察到Cpn0308和ACBD3在未感染的和感染C. pneumoniae的HeLa细胞中同定位.
结论:
- Cpn0308-ACBD3的相互作用表明,克拉米迪亚肺炎的机制是劫持宿主脂质代谢.
- 这种相互作用可能促进宿主脂质的获取,有助于细菌的生存和复制.
- 对Cpn0308进行进一步的研究对于了解C. pneumoniae的病变发生至关重要.
更多相关视频
10:53Membrane-SPINE: A Biochemical Tool to Identify Protein-protein Interactions of Membrane Proteins In Vivo
Published on: November 7, 2013
13.7K
11:32Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
Published on: February 23, 2014
15.0K
相关概念视频
01:09GPCRs Regulate Adenylyl Cylase Activity
5.3K
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...
5.3K
01:24Adherens Junctions
4.7K
Strong contact points between adjacent cells anchor them to each other, forming tissues. Such anchoring junctions are of two types – adherens junctions and desmosomes. Adherens junctions are abundant in tissues such as epithelium and endothelium, forming a continuous zone of adhesion called the adhesion belt. In other tissues, such as heart muscle, they appear as clusters, linking the cells to produce coordinated heart muscle contraction.
Adherens Junctions are Dynamic
Adherens Junctions are Dynamic
4.7K
01:31Immunoglobulin-like Cell Adhesion Molecules
3.2K
Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
3.2K