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对关节动物STARD家族的洞察:全基因组识别,进化分析和表达模式

Min Zhang¹, Mingjie Li², Boxiang Zhu¹

¹Centre for Research on Environmental Ecology and Fish Nutrition of the Ministry of Agriculture and Rural Affairs of China, Shanghai Ocean University, Shanghai 201306, China.

Comparative biochemistry and physiology. Part D, Genomics & proteomics

|August 19, 2025

概括

类固醇性急性调节 (STARD) 蛋白质家族.

科学领域:

分子生物学分子生物学
进化生物学进化生物学
甲动物研究研究

背景情况:

类固醇急性调节蛋白 (STARD) 对于脂质运输至关重要,但它们在关节动物中的进化历史和功能在很大程度上仍未被探索.
了解STARD基因家族的演化,结构和连接体相互作用对于破译不同物种的脂质代谢至关重要.

研究的目的:

在关节动物中全面研究STARD基因家族,重点关注进化动态,系遗传关系和结合体特异性.
描述中华 (Eriocheir sinensis) 中STARD基因的表达模式及其对环境压力的反应.

主要方法:

对来自34种关节动物物种的196个STARD基因进行了家族遗传学分析.
在Eriocheir sinensis中识别和表征STARD基因.
使用定量实时PCR对高pH压力的反应中STARD基因表达的分析.

主要成果:

在34种关节动物中确定了196个STARD基因,在大多数物种中观察到STARD1/3替代物.
STARD蛋白被分为六个分类,具有明显的胡卜素结合偏好,表明在净化选择下进化保存.
在Eriocheir sinensis中,六个STARD基因表现出组织特异性表达,在高pH压力下,STARD3和STARD11在肝胰腺上调.

结论:

这项研究阐明了关节动物STARD基因家族的进化轨迹和功能多样化.
在甲动物中,特别是STARD3和STARD11中,STARD基因表达表明它在管理氧化应激和通过胡卜素利用维持平衡中起着适应性作用.
这些发现为未来研究STARD蛋白功能及其在关节动物生物学中的意义提供了基础.

关键词:

绑定能力绑定能力胡卜素的新陈代谢基因表达模式基因表达模式配体的偏好配体的偏好类固醇性急性监管领域

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