Sébastien A Choteau, Kevin Maldonado, Aurélie Bergon, Marceau Cristianini, Mégane Boujeant, Lilian Drets, Christine Brun, Lionel Spinelli, Andreas Zanzoni
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引用次数: 0
Abstract
Background: The increasing incidence of emerging infectious diseases is posing serious global threats. Therefore, there is a clear need for developing computational methods that can assist and speed up experimental research to better characterize the molecular mechanisms of microbial infections.
Methods: In this context, we developed mimicINT, an open-source computational workflow for large-scale protein-protein interaction inference between microbe and human by detecting putative molecular mimicry elements mediating the interaction with host proteins: short linear motifs (SLiMs) and host-like globular domains. mimicINT exploits these putative elements to infer the interaction with human proteins by using known templates of domain-domain and SLiM-domain interaction templates. mimicINT also provides (i) robust Monte-Carlo simulations to assess the statistical significance of SLiM detection which suffers from false positives, and (ii) an interaction specificity filter to account for differences between motif-binding domains of the same family. We have also made mimicINT available via a web server.
Results: In two use cases, mimicINT can identify potential interfaces in experimentally detected interaction between pathogenic Escherichia coli type-3 secreted effectors and human proteins and infer biologically relevant interactions between Marburg virus and human proteins.
Conclusions: The mimicINT workflow can be instrumental to better understand the molecular details of microbe-host interactions.
背景:新发传染病发病率的上升正在构成严重的全球威胁。因此,显然需要开发计算方法来辅助和加速实验研究,以更好地表征微生物感染的分子机制。方法:在这种背景下,我们开发了mimicINT,这是一个开源的计算工作流程,通过检测介导与宿主蛋白相互作用的假定分子模拟元件:短线性基序(short linear motif, SLiMs)和宿主样球状结构域,来推断微生物与人类之间的大规模蛋白质-蛋白质相互作用。mimicINT利用这些假定的元素,通过使用已知的domain-domain和SLiM-domain相互作用模板来推断与人类蛋白质的相互作用。mimicINT还提供(i)健壮的蒙特卡罗模拟,以评估SLiM检测的统计显著性,从而避免假阳性,以及(ii)相互作用特异性过滤器,以解释同一家族的基元结合域之间的差异。我们还通过网络服务器提供了mimicINT。结果:在两个用例中,mimicINT可以识别实验检测到的致病性大肠杆菌3型分泌效应物与人蛋白相互作用的潜在界面,并推断马尔堡病毒与人蛋白之间的生物学相关性相互作用。结论:mimicINT工作流程有助于更好地了解微生物-宿主相互作用的分子细节。
F1000ResearchPharmacology, Toxicology and Pharmaceutics-Pharmacology, Toxicology and Pharmaceutics (all)
CiteScore
5.00
自引率
0.00%
发文量
1646
审稿时长
1 weeks
期刊介绍:
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