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Epitope-Based Vaccine Designing of Nocardia asteroides Targeting the Virulence Factor Mce-Family Protein by Immunoinformatics Approach.
International Journal of Peptide Research and Therapeutics ( IF 2.5 ) Pub Date : 2019-08-21 , DOI: 10.1007/s10989-019-09921-4
Prasanta Patra 1 , Niladri Mondal 1 , Bidhan Chandra Patra 1, 2 , Manojit Bhattacharya 1, 2
Affiliation  

Nocardia asteroides is the main causative agent responsible for nocardiosis disease in immunocompromised patient viz. Acquired Immunodeficiency Syndrome (AIDS), malignancy, diabetic, organ recipient and genetic disorders. The virulence factor and outer membrane protein pertains immense contribution towards the designing of epitopic vaccine and limiting the robust outbreak of diseases. While epitopic based vaccine element carrying B and T cell epitope along with adjuvant is highly immunoprophylactic in nature. Present research equips immunoinformatics to figure out the suitable epitopes for effective vaccine designing. The selected epitopes VLGSSVQTA, VNIELKPEF and VVPSNLFAV amino acids sequence are identified by HLA-DRB alleles of both MHC class (MHC-I and II) molecules. Simultaneously, these also accessible to B-cell, confirmed through the ABCPred server. Antigenic property expression is validated by the Vaxijen antigenic prediction web portal. Molecular docking between the epitopes and T cell receptor delta chain authenticate the accurate interaction between epitope and receptor with significantly low binding energy. Easy access of epitopes to immune system also be concluded as transmembrane nature of the protein verified by using of TMHMM server. Appropriate structural identity of the virulence factor Mce-family protein generated through Phyre2 server and subsequently validated by ProSA and PROCHECK program suite. The structural configuration of theses epitopes also shaped using DISTILL web server. Both the structure of epitopes and protein will contribute a significant step in designing of epitopic vaccine against N. asteroides. Therefore, such immunoinformatics based computational drive definitely provides a conspicuous impel towards the development of epitopic vaccine as a promising remedy of nocardiosis

中文翻译:

诺卡氏小行星的基于表位的疫苗设计,通过免疫信息学方法靶向毒力因子Mce-家族蛋白。

诺卡氏小行星是导致免疫功能低下患者心肌病的主要病原。获得性免疫缺陷综合症(AIDS),恶性肿瘤,糖尿病,器官接受者和遗传疾病。毒力因子和外膜蛋白对表位疫苗的设计和限制疾病的爆发具有巨大的贡献。虽然带有B和T细胞表位以及佐剂的基于表位的疫苗元件本质上是高度免疫预防的。目前的研究装备了免疫信息学,以找出适合进行有效疫苗设计的表位。选定的表位VLGSSVQTA,VNIELKPEF和VVPSNLFAV氨基酸序列由MHC类分子(MHC-1和II)的HLA-DRB等位基因鉴定。同时,通过ABCPred服务器确认的B细胞也可以访问它们。抗原特性表达已通过Vaxijen抗原预测网络门户网站进行了验证。表位与T细胞受体δ链之间的分子对接以显着低的结合能验证了表位与受体之间的准确相互作用。通过使用TMHMM服务器验证了蛋白质的跨膜性质,也可以得出表位易于进入免疫系统的结论。通过Phyre2服务器生成并随后通过ProSA和PROCHECK程序套件进行验证的毒力因子Mce家族蛋白的适当结构身份。这些表位的结构配置也可以使用DISTILL Web服务器进行成形。表位和蛋白质的结构都将在设计针对 表位与T细胞受体δ链之间的分子对接以显着低的结合能验证了表位与受体之间的准确相互作用。通过使用TMHMM服务器验证了蛋白质的跨膜性质,也可以得出表位易于进入免疫系统的结论。通过Phyre2服务器生成并随后通过ProSA和PROCHECK程序套件进行验证的毒力因子Mce家族蛋白的适当结构身份。这些表位的结构配置也可以使用DISTILL Web服务器进行成形。表位和蛋白质的结构都将在设计针对 表位与T细胞受体δ链之间的分子对接以显着低的结合能验证了表位与受体之间的准确相互作用。通过使用TMHMM服务器验证了蛋白质的跨膜性质,也可以得出表位易于进入免疫系统的结论。通过Phyre2服务器生成并随后通过ProSA和PROCHECK程序套件进行验证的毒力因子Mce家族蛋白的适当结构身份。这些表位的结构配置也可以使用DISTILL Web服务器进行成形。表位和蛋白质的结构都将在设计针对 通过使用TMHMM服务器验证了蛋白质的跨膜性质,也可以得出表位易于进入免疫系统的结论。通过Phyre2服务器生成并随后通过ProSA和PROCHECK程序套件进行验证的毒力因子Mce家族蛋白的适当结构身份。这些表位的结构配置也可以使用DISTILL Web服务器进行成形。表位和蛋白质的结构都将在设计针对 通过使用TMHMM服务器验证了蛋白质的跨膜性质,也可以得出表位易于进入免疫系统的结论。通过Phyre2服务器生成并随后通过ProSA和PROCHECK程序套件进行验证的毒力因子Mce家族蛋白的适当结构身份。这些表位的结构配置也可以使用DISTILL Web服务器进行成形。表位和蛋白质的结构都将在设计针对N.星状。因此,这种基于免疫信息学的计算驱动力无疑为表位疫苗的开发提供了明显的推动力,该疫苗是诺卡氏病的有希望的治疗方法
更新日期:2019-08-21
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