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对祖先卟啉单胞菌属菌毛蛋白Ffp1的计算机模拟分析显示,其与菌毛蛋白(Fim)和微纤毛蛋白(Mfa)存在差异。

In silico analysis of Ffp1, an ancestral Porphyromonas spp. fimbrillin, shows differences with Fim and Mfa.

作者信息

Acuña-Amador Luis, Barloy-Hubler Frederique

机构信息

Laboratorio de Investigación en Bacteriología Anaerobia, Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica.

Université de Rennes 1, CNRS, UMR 6553 ECOBIO (Écosystèmes, Biodiversité, Évolution), 35042 Rennes, France.

出版信息

Access Microbiol. 2024 Jul 11;6(7). doi: 10.1099/acmi.0.000771.v3. eCollection 2024.

DOI:10.1099/acmi.0.000771.v3
PMID:39130734
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11316588/
Abstract

Scant information is available regarding fimbrillins within the genus , with the notable exception of those belonging to , which have been extensively researched for several years. Besides and , a third adhesin called filament-forming protein 1 (Ffp1) has recently been described and seems to be pivotal for outer membrane vesicle (OMV) production. We aimed to investigate the distribution and diversity of type V fimbrillin, particularly Ffp1, in the genus . A bioinformatics phylogenomic analysis was conducted using all accessible genomes to generate a domain search for fimbriae, using hidden Markov model profiles. Ffp1 was identified as the sole fimbrillin present in all analysed genomes. After manual verification (i.e. biocuration) of both structural and functional annotations and 3D modelling, this protein was determined to be a type V fimbrillin, with a closer structural resemblance to a fimbrillin than to FimA or Mfa1 from . It appears that Ffp1 is an ancestral fimbria, transmitted through vertical inheritance and present across all species. Additional investigations are necessary to elucidate the biogenesis of Ffp1 fimbriae and their potential role in OMV production and niche adaptation.

摘要

关于该属内的菌毛蛋白,目前可获得的信息很少,属于[具体属名]的菌毛蛋白是个显著例外,它们已经被广泛研究了数年。除了[具体菌毛蛋白1]和[具体菌毛蛋白2],最近还描述了第三种[属名]黏附素,称为丝状形成蛋白1(Ffp1),它似乎对外膜囊泡(OMV)的产生至关重要。我们旨在研究V型菌毛蛋白,特别是Ffp1,在[属名]中的分布和多样性。使用所有可获取的[属名]基因组进行了生物信息学系统发育基因组分析,利用隐马尔可夫模型谱对菌毛进行结构域搜索。Ffp1被确定为所有分析基因组中唯一存在的菌毛蛋白。在对结构和功能注释以及三维建模进行人工验证(即生物编目)后,该蛋白被确定为V型菌毛蛋白,与[具体属名]的菌毛蛋白相比,其结构与[具体属名]的菌毛蛋白更相似,而与[其他属名]的FimA或Mfa1不同。似乎Ffp1是一种祖传菌毛,通过垂直遗传传递,存在于所有[属名]物种中。需要进一步研究以阐明Ffp1菌毛的生物发生及其在OMV产生和生态位适应中的潜在作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/0eda6f741d85/acmi-6-00771-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/b1564e028155/acmi-6-00771-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/04f3de4f00cd/acmi-6-00771-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/c25d84207fa7/acmi-6-00771-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/1309b603f817/acmi-6-00771-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/0eda6f741d85/acmi-6-00771-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/b1564e028155/acmi-6-00771-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/04f3de4f00cd/acmi-6-00771-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/c25d84207fa7/acmi-6-00771-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/1309b603f817/acmi-6-00771-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a4f9/11316588/0eda6f741d85/acmi-6-00771-g005.jpg

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