作为细胞检查点的重要调节节点,CIT激酶酸化是细胞检查点的重要调节节点
Jaytha Thomas1, Fathimathul Lubaba1, Mukhtar Ahmed2
1Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed to be University), Mangalore, Karnataka, India.
Frontiers in bioinformatics
|January 28, 2026
概括
在S440的酸化是细胞分裂和DNA修复的关键. 异常的CIT S440酸化与癌症有关,这表明它是一个治疗点.
科学领域:
- 细胞生物学 细胞生物学
- 分子瘤学分子瘤学
- 生物化学 生化学
背景情况:
- Rho相互作用的氨酸/氨酸激酶 (CIT) 对于细胞分裂至关重要.
- 信息通信系统的失调与癌症和神经发育障碍有关.
- 对于CIT酸盐的功能相关性,在很大程度上仍未被探索.
研究的目的:
- 系统地调查CIT的调节.
- 为了确定占主导地位的CIT酸盐及其监管网络.
- 评估CIT酸化在疾病中的功能意义.
主要方法:
- 精选和集成的CIT的蛋白质组数据集.
- 分析了蛋白质与占主导地位的CIT酸盐的共同调节.
- 进行了动图分析,以预测酶识别位点.
主要成果:
- 赛林440 (S440) 是主要的CIT酸盐,涉及超过55%的信号事件.
- S440是一个预测的自化部位,由D{\displaystyle D}/T{\displaystyle D}/P{\displaystyle D}/T{\displaystyle D}/P{\displaystyle D}/P{\displaystyle D}/T{\displaystyle D} 动态调节.
- 一个CIT-S440调节网络涉及136种相互作用的蛋白质和82种预测的基质,包括细胞周期和DNA修复调节器.
- 在乳腺癌,结肠癌和膀癌中观察到异常CIT S440酸化.
结论:
- CIT S440是一种关键的基酸,参与细胞检查点信号传输.
- CIT S440 是一个有前途的治疗点.
- 由此产生的调节网络可以指导酸特定的治疗干预措施.
相关概念视频
Protein Kinases and Phosphatases
15.1K
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...
15.1K
Protein Kinases and Phosphatases
4.5K
4.5K
Phosphorylation
53.8K
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...
53.8K
Cis-regulatory Sequences
11.8K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
11.8K
Cis-regulatory Sequences
4.1K
4.1K
The Spindle Assembly Checkpoint
3.8K
The spindle assembly checkpoint is a molecular surveillance mechanism ensuring the fidelity of chromosome segregation during anaphase. The checkpoint monitors the completion of all the prerequisite steps before chromosome segregation to determine whether the segregation process should proceed or be delayed.
Many proteins function together to control the spindle assembly checkpoint. Mutations affecting these proteins may allow cells to proceed into anaphase prematurely, resulting in the...
Many proteins function together to control the spindle assembly checkpoint. Mutations affecting these proteins may allow cells to proceed into anaphase prematurely, resulting in the...
3.8K


