Ghosh Raktim, Biswas Pinaki, Das Moubonny, Pal Suchetana, Dam Somasri
Department of Microbiology, The University of Burdwan, Burdwan, West Bengal 713104 India.
J Parasit Dis. 2022 Dec;46(4):998-1010. doi: 10.1007/s12639-022-01523-0. Epub 2022 Jul 23.
SCF complex consisting of Skp1, Cullins, F-box proteins, is the largest family of E3 ubiquitin ligases that promotes ubiquitination of many substrate proteins and controls numerous cellular processes. Skp1 is an adapter protein that binds directly to the F-box proteins. In this study, we have presented the first comprehensive analysis of the presence of peptides or proteins in the human pathogen having homology to Skp1protein. The occurrence of other protein components of the SCF complex has been identified from protein-protein interaction network of EhSkp1A. Studying the role of Skp1protein in this pathogen would help to understand its unique chromosome segregation and cell division which are different from higher eukaryotes. Further, owing to the development of resistance over several drugs that are currently available, there is a growing need for a novel drug against . Proteins from ubiquitin-proteasome pathway have received attention as potential drug targets in other parasites. We have identified four homologs of Skp1 protein in strain HM-1: IMSS. Molecular docking study between EhSkp1A and an F-box/WD domain-containing protein (EhFBXW) shows that the F-box domain in the N-terminal region of EhFBXW interacts with EhSkp1A. Therefore, the results of the present study shall provide a stable foundation for further research on the cell cycle regulation of and this will help researchers to develop new drugs against this parasite.
The online version contains supplementary material available at 10.1007/s12639-022-01523-0.
由Skp1、Cullins和F-box蛋白组成的SCF复合物是最大的E3泛素连接酶家族,可促进许多底物蛋白的泛素化并控制众多细胞过程。Skp1是一种直接与F-box蛋白结合的衔接蛋白。在本研究中,我们首次全面分析了人类病原体中与Skp1蛋白具有同源性的肽或蛋白质的存在情况。已从EhSkp1A的蛋白质-蛋白质相互作用网络中鉴定出SCF复合物其他蛋白质成分的存在。研究Skp1蛋白在这种病原体中的作用将有助于理解其与高等真核生物不同的独特染色体分离和细胞分裂。此外,由于目前可用的几种药物出现了耐药性,因此对新型抗疟药物的需求日益增长。泛素-蛋白酶体途径的蛋白质作为其他寄生虫潜在的药物靶点受到了关注。我们在疟原虫菌株HM-1:IMSS中鉴定出了Skp1蛋白的四个同源物。EhSkp1A与一种含F-box/WD结构域的蛋白(EhFBXW)之间的分子对接研究表明,EhFBXW N端区域的F-box结构域与EhSkp1A相互作用。因此,本研究结果将为进一步研究疟原虫的细胞周期调控提供坚实基础,这将有助于研究人员开发针对这种寄生虫的新药。
在线版本包含可在10.1007/s12639-022-01523-0获取的补充材料。