你有没有一个LaPh? 在哺乳动物细胞中化的不同作用
Christopher J Clarke1, Claire E Eyers1
1Centre for Proteome Research, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown Street, Liverpool, L69 7ZB, U.K.
Biochemical Society transactions
|October 22, 2025
概括
涉及His,Lys,Arg,Asp,Glu和Cys的可变酸 (LaPhs) 对于哺乳动物的信号传输至关重要. 这些位点与稳定的pSer,pThr和pTyr不同,具有独特的稳定性配置,影响其多样化的功能.
科学领域:
- 生物化学 生化学
- 细胞生物学 细胞生物学
- 信号传输 信号传输
背景情况:
- 酸化是所有生物体中信号传导的关键调节器.
- 哺乳动物信号研究主要集中在稳定的酸盐上:瑟林 (pSer),三烯 (pThr) 和铁 (pTyr).
- 在His,Lys,Arg,Asp,Glu和Cys上的性酸盐 (LaPhs) 在很大程度上被忽视了.
研究的目的:
- 审查LaPhs对哺乳动物信号网络的贡献.
- 为了突出LaPhs.的多样化功能.
- 为了强调与稳定的酸盐相比,LaPhs的独特特征.
主要方法:
- 文献综述侧重于哺乳动物信号传递中的LaPhs.
- 对LaPhs.的独特化学特性和稳定性概况的分析.
- 综合关于LaPh函数的当前知识.
主要成果:
- LaPhs的特点是酸性和/或耐热酸盐连接.
- 这些地点表现出独特的热和pH稳定性配置文件.
- 在各种哺乳动物的信号通路中,LaPhs有定义的作用.
结论:
- LaPhs代表了哺乳动物信号传递的一个关键,但尚未研究的组成部分.
- 拉菲的独特稳定性可能决定了它们的特定生物功能.
- 对LaPhs的进一步研究对于全面了解细胞信号来说至关重要.
相关概念视频
Protein Kinases and Phosphatases
14.9K
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
14.9K
Protein Kinases and Phosphatases
4.3K
4.3K
Phosphorylation
53.6K
The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
53.6K
Positive Regulator Molecules
6.5K
Mitotic cell division results in daughter cells that exactly resemble the parent cell. However, errors in the DNA replication or distribution of genetic material may lead to genetic mutations that may be passed down to every new cell formed from the resulting abnormal cell. Propagation of such mutant cells is restricted through checkpoint mechanisms present at different stages of the cell cycle. These checkpoints involve regulator molecules that either promote or demote cell cycle events.
6.5K
Positive Regulator Molecules
134.1K
To consistently produce healthy cells, the cell cycle—the process that generates daughter cells—must be precisely regulated.
134.1K
PI3K/mTOR/AKT Signaling Pathway
5.3K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
5.3K


