强调了短线性图案在ATAXIN-2凝结中的作用
Tom Scheidt1, Hao Ruan1, Miao Yu1
1Biocenter, Johannes Gutenberg University, Hanns-Dieter-Hüsch Weg 17, 55128 Mainz, Germany; Institute for Molecular Biology, Ackermannweg 4, 55128 Mainz, Germany.
Molecular cell
|June 16, 2023
概括
素-2是一种RNA结合蛋白,具有新发现的动机,作为细胞应激颗粒组装的开关. 这一发现为神经退行性疾病提供了分子洞察力.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 神经科学是一个神经科学.
背景情况:
- ATAXIN-2是一种保存的RNA结合蛋白,涉及压力颗粒组装.
- 它也与与年龄相关的神经退行性疾病有关.
研究的目的:
- 确定亚素-2在细胞应激反应中的作用背后的分子机制.
- 为了阐明ATAXIN-2蛋白内特定基因的功能.
主要方法:
- 在ATAXIN-2中识别和描述一个短线性图案.
- 分析图案在应力颗粒组装和蛋白质凝结中的作用.
主要成果:
- ATAXIN-2中的一个特定的短线性图案可以作为凝结开关.
- 这种动图对于蛋白质参与细胞压力颗粒形成至关重要.
结论:
- 鉴定出来的基因为ATAXIN-2的功能提供了关键的分子洞察力.
- 了解这种凝结开关机制可能会为神经退行性疾病的治疗策略提供信息.
相关概念视频
Condensins
3.5K
Condensins are large protein complexes that use ATP to fuel the assembly of chromosomes during mitosis. They transform the tangled, shapeless mass of post-interphase DNA into individualized chromosomes by compacting, organizing, and segregating chromosomal DNA.
The plant and animal cells contain two types of condensin complexes—condensin I and condensin II. Both complexes have five subunits: two SMC (Structural Maintenance of Chromosomes) subunits, a kleisin subunit, and two HEAT-repeat...
The plant and animal cells contain two types of condensin complexes—condensin I and condensin II. Both complexes have five subunits: two SMC (Structural Maintenance of Chromosomes) subunits, a kleisin subunit, and two HEAT-repeat...
3.5K
Generation of Straight or Branched Actin Filaments
3.0K
The straight or branched structure formation of actin filaments is controlled by nucleating proteins such as the formins and Arp2/3 complex. Formin-mediated assembly results in straight filaments, whereas Arp2/3 protein complex-mediated assembly results in branched actin filaments.
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...
3.0K
Conserved Binding Sites
4.2K
Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
4.2K
Allosteric Proteins-ATCase
5.8K
Binding sites linkages can regulate a protein's function. For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
5.8K
Protein Folding
118.5K
Overview
118.5K
Introduction to Actin
5.2K
Actin is a highly conserved cytoskeletal protein found abundantly in eukaryotic cells. It constitutes 10% weight of the total cellular protein in muscle cells, while in non-muscle cells, it is lower and makes up around 1–5 percent of the total cell protein. Actin found in the unicellular amoebae and complex multicellular animals is around 80% similar, demonstrating their conservation over a billion years of evolution. Actin coding genes are conserved within species and across...
5.2K


