大型乳草虫的Na,K-ATPaseβ子单元以组织特异的方式与隔膜连接蛋白结合
Marlena Herbertz1, Christian Lohr2, Susanne Dobler3
1Institute of Cell and Systems Biology of Animals, Molecular Evolutionary Biology, University of Hamburg, 20146, Hamburg, Germany. marlena.herbertz@uni-hamburg.de.
Cell and tissue research
|March 26, 2025
概括
这是一种Na,K-ATPase酶.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 昆虫生理学 昆虫生理学
背景情况:
- Na,K-ATPase酶对动物细胞功能至关重要,由α和β子单元组成.
- 昆虫物种中β子单元的多样性表明它们的功能角色各不相同,但尚未完全理解.
- 七面结形成了对表皮功能至关重要的细胞屏障.
研究的目的:
- 研究四个Na,K-ATPaseβ子单元在隔膜连接中的作用.
- 为了探索Na,K-ATPase子单元与状接蛋白在Oncopeltus fasciatus的同位化.
- 了解β子单元与隔膜结蛋白相互作用的功能含义.
主要方法:
- 使用了模型系统Oncopeltus fasciatus.
- 研究了Na,K-ATPase子单元和隔膜结蛋白的局部化.
- 研究了特定β子单元和像心脏状细胞这样的隔膜结合蛋白之间的相互作用.
主要成果:
- 大多数Na,K-ATPase亚单元被发现与O. fasciatus.中的隔膜结蛋白同位.
- 证实了之前关于β2在调节气管大小中的作用的发现,与隔膜结的稳定性有关.
- 确定了隔膜结蛋白心脏和独特的βx子单元之间的潜在关联.
结论:
- Na,K-ATPase 的四个β子单元可能与隔膜结蛋白形成功能单元.
- 这些相互作用可能调节组织特异性的细胞与细胞接触形成.
- 表明这些β子单元在上皮细胞生物学中的新,可能未知的功能.
更多相关视频
08:04Author Spotlight: Understanding Microtubule Network in Drosophila Neuromuscular Junctions
Published on: October 20, 2023
2.0K
12:15The C. elegans Intestine As a Model for Intercellular Lumen Morphogenesis and In Vivo Polarized Membrane Biogenesis at the Single-cell Level: Labeling by Antibody Staining, RNAi Loss-of-function Analy
Published on: October 3, 2017
13.3K
相关概念视频
Role of Septins
1.7K
Septins are the recently discovered fourth major protein component of the cytoskeleton, along with microfilaments, microtubules, and intermediate filaments. These proteins can associate with other cytoskeletal filaments and carry out varied roles or can be free-floating in the cytoplasm.
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
1.7K
Septins
1.8K
Septins are protein filaments forming the cytoskeleton along with the microtubules, microfilaments, intermediate filaments, and other accessory proteins. In 1971 while studying the cell division cycle in mutant Saccharomyces cerevisiae Harwell et al. first identified the septin-related genes playing a crucial role in yeast cytokinesis. Fluorescence microscopy revealed that these proteins localize at the budding neck as rings. These ring-like proteins were then named Septins by John Pringle, and...
1.8K
Overview of Secretory Vesicles
7.4K
Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
7.4K
Tight Junctions
5.1K
Tight junctions are molecular seals between cells that prevent the leaking of fluids, ions, and other small solutes across cavities and compartments in multicellular organisms. They are mainly composed of claudin and occludin transmembrane proteins, and other proteins such as tricellulin and JAM (junctional adhesion molecule). All these proteins are 4-pass transmembrane proteins, except JAM, which is a single-pass transmembrane protein belonging to the immunoglobulin superfamily. The...
5.1K
