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针对……的潜在肽或变应原注射候选物的鉴定

Identification of Potential Peptides or Allergen Shot Candidates Against .

作者信息

Thakur Raman, Shankar Jata

机构信息

Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology , Solan-173234 (Himachal Pradesh), India .

出版信息

Biores Open Access. 2016 Nov 1;5(1):330-341. doi: 10.1089/biores.2016.0035. eCollection 2016.

Abstract

is capable of causing invasive aspergillosis or acute bronchopulmonary aspergillosis, and the current situation is alarming. There are no vaccine or allergen shots available for -induced allergies. Thus, a novel approach in designing of an effective vaccine or allergen shot candidate against is needed. Using immunoinformatics approaches from the characterized allergens, we have mapped epitopic regions to predict potential peptides that elicit both -specific T cells and B cell immune response. Experimentally derived immunodominant allergens were retrieved from www.allergen.org. A total of 23 allergenic proteins of were retrieved. Out of 23 allergenic proteins, 13 of them showed high sequence similarity to both human and mouse counterparts and thus were eliminated from analysis due to possible cross-reactivity. Remaining allergens were subjected to T cell (major histocompatibility complex class I and II alleles) and B cell epitope prediction using immune epitope database analysis resource. Only five allergens have shown a common B and T cell epitopic region between human and mouse. They are {147-156 region (RVIYTYPNKV); Mitogillin}, {5-19 region (LRLAVLLPLAAPLVA); Hypothetical protein}, {305-322 region (LNNYRPSSSSLSFKY); Metalloprotease}, {98-106 region (AANAGGTVY); Hypothetical protein}, and {74-82 region (YIQDGSLYL); PhiA cell wall protein}. The epitopic region from these five allergenic proteins showed potential for development of single peptide- or multipeptide-based vaccine or allergen shots for experimental prioritization.

摘要

能够引发侵袭性曲霉病或急性支气管肺曲霉病,当前形势令人担忧。目前尚无针对[引发因素]所致过敏的疫苗或变应原注射剂。因此,需要一种设计针对[引发因素]的有效疫苗或候选变应原注射剂的新方法。利用来自已表征的[引发因素]变应原的免疫信息学方法,我们绘制了表位区域以预测能引发[引发因素]特异性T细胞和B细胞免疫反应的潜在肽段。从www.allergen.org检索到实验得出的免疫显性变应原。共检索到[引发因素]的23种变应原蛋白。在这23种变应原蛋白中,有13种与人类和小鼠的对应蛋白具有高度序列相似性,因此由于可能的交叉反应性而被排除在分析之外。对剩余的变应原使用免疫表位数据库分析资源进行T细胞(主要组织相容性复合体I类和II类等位基因)和B细胞表位预测。只有五种变应原在人类和小鼠之间显示出共同的B细胞和T细胞表位区域。它们是[引发因素1] {147 - 156区域(RVIYTYPNKV);丝裂霉素},[引发因素2] {5 - 19区域(LRLAVLLPLAAPLVA);假定蛋白},[引发因素3] {305 - 322区域(LNNYRPSSSSLSFKY);金属蛋白酶},[引发因素4] {98 - 106区域(AANAGGTVY);假定蛋白},以及[引发因素5] {74 - 82区域(YIQDGSLYL);PhiA细胞壁蛋白}。来自这五种变应原蛋白的表位区域显示出开发基于单肽或多肽的疫苗或变应原注射剂以进行实验优先级排序的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e0e9/5116691/7093eb7ba12f/fig-1.jpg

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