在C.中,F-box蛋白FBXL-5控制了生和脂质平衡. 伊莱根斯 (elegans) 是一个词
Peter C Breen1, Kendall G Kanakanui1, Martin A Newman1
1Integrative Program for Biological and Genome Sciences, The University of North Carolina at Chapel Hill, Chapel Hill, NC, Unites States.
Frontiers in cell and developmental biology
|July 1, 2024
概括
研究人员发现,FBXL-5蛋白调节C. elegans的生殖母体脂质供应. 这一发现揭示了有机体如何平衡生殖与体质维持,影响脂质平衡和寿命.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 代谢对生殖的承诺往往会损害体质储备.
- 这种权衡的分子调节尚未得到充分理解.
- 维特洛根因脂蛋白调解脂质从肠道转移到生殖的生殖线.
研究的目的:
- 确定C. elegans中母体脂质供应的分子调节剂.
- 阐明FBXL-5在调节维特洛金因合成和脂质平衡中的作用.
- 了解控制这一过程的遗传相互作用.
主要方法:
- 在C. elegans.中进行遗传查和表皮病分析.
- 对基因表达和蛋白质功能的分析.
- 对脂质积累和寿命的研究.
主要成果:
- FBXL-5作为母体维特洛根因供应的负调节剂.
- 在fbxl-5中发生的突变会抑制特定突变体的活细胞生成缺陷.
- 在肠道中FBXL-5的功能是抑制维特洛根因基因表达,影响脂质积累和寿命.
- FBXL-5在基因上与CUL-6,SKR-3相互作用,并且在RICT-1/mTORC2信号传输上游起作用.
结论:
- FBXL-5通过mTORC2信号控制肠道脂质稳定.
- 在SCF中,ubiquitin结合酶复合体在调节生殖和体质维持之间的平衡方面发挥着新的作用.
- 这项研究揭示了一种新机制,控制了代谢适应生殖的机制.
相关概念视频
Canonical Wnt Signaling Pathway
8.7K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.7K
Regulation of Nuclear Protein Sorting
2.4K
Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...
2.4K
Background and Environment Affect Phenotype
6.5K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.5K


