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鱼类病原体Vibrio ordalii菌株Vo-LM-18及其外膜囊泡的蛋白质组分析

Macarena Echeverría-Bugueño^1,2, Mauricio Hernández³, Ruben Avendaño-Herrera^1,2,4

¹Interdisciplinary Center for Aquaculture Research (INCAR), Universidad Andrés Bello, Viña del Mar 2531015, Chile.

Animals : an open access journal from MDPI

|January 8, 2025

概括

这项研究揭示了Vibrio ordalii及其外膜囊泡 (OMVs) 的蛋白质学景观,确定了关键的毒性因素和途径. 这些发现突出了OMVs.

科学领域:

微生物学微生物学
蛋白质组学是指蛋白质组学.
细菌病原体的产生

背景情况:

Vibrio ordalii在养的鱼类中引起非典型的振动病.
之前的研究集中在V. ordalii的遗传学和毒性上,但其蛋白质组研究不足.
V. ordalii 的外膜囊泡 (OMV) 是已知的毒性因子.

研究的目的:

对智利的V. ordalii菌株Vo-LM-18及其OMV进行全面的蛋白质基因表征.
识别和比较细菌及其OMV的蛋白质含量和功能途径.
探索OMVs在V. ordalii病原和适应中的作用.

主要方法:

使用Nano-UHPLC-LC-MS/MS对V. ordalii Vo-LM-18及其分离的OMV进行了蛋白质组分析.
蛋白质被识别,量化和功能性注释以确定生物途径.
进行了比较分析,以突出细菌与其OMV之间的蛋白质表达差异.

主要成果:

在V. ordalii Vo-LM-18中总共发现了2242种蛋白质,在OMV中发现了1755种蛋白质.
与运输,转录和毒性相关的蛋白质在两者中都很丰富.
OMV显示出更高比例的毒性相关蛋白质,包括RTX毒素和铁/血吸收系统. 在V. ordalii.中首次检测到RTX毒素.
观察到不同的途径,细菌显示出显著的鞭毛组装和蛋白质生物合成.

结论:

这项蛋白质组学研究为V. ordalii及其OMV提供了新的见解.
OMV在V. ordalii的发病和适应中发挥着重要作用,特别是通过毒性因素.
已识别的蛋白质和途径表明了V. ordalii感染的潜在诊断生物标志物和治疗点.

关键词:

机器人驾驶汽车 (OMV) 的使用蛋白质组是一种蛋白质组.这些是鱼类的鱼.这种疾病叫做vibriosis.

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