相关实验视频
Updated: Jul 8, 2025

10:24
Xenopus laevis as a Model to Identify Translation Impairment
Published on: September 27, 2015
10.8K
迪夫他胺 - - 是eEF2的保存修改,具有临床意义
Raffael Schaffrath1, Ulrich Brinkmann2
1Institut für Biologie, Fachgebiet Mikrobiologie, Universität Kassel, Kassel, Germany.
Trends in molecular medicine
|December 14, 2023
概括
二胺,一个关键的翻译因子修改,确保读取框架的准确性. 它的作用不仅仅是细菌,还包括人类发育,癌症和像SARS-CoV-2这样的病毒感染.
科学领域:
- 分子生物学分子生物学
- 生物化学 生化学
- 遗传学 是一个遗传学.
背景情况:
- 双胺是真核细胞翻译延长因子2 (eEF2) 的一个独特的翻译后修饰.
- 这种修改对于保持翻译忠实性至关重要,并且在真核生物和古生物中得到保护.
- 最初被称为白喉毒素 (DT) 的标,其意义现在在更广泛的生物背景中得到了认可.
研究的目的:
- 审查diphthamide的合成,功能和临床相关性.
- 探索二胺合成酶与癌症和遗传疾病的关联.
- 调查二甲胺在病毒限制中的作用,包括SARS-CoV-2和HIV-1.
主要方法:
- 关于二胺合成和功能的现有研究的文献综述.
- 对将二甲胺合成酶 (DPH1,DPH3) 与癌症和二甲胺缺乏症综合征 (DDS) 联系起来的研究分析.
- 检查最近关于二甲胺在病毒传播和宿主-病原体相互作用中的作用的发现.
主要成果:
- 双胺的合成和功能在真核生物和古生物中保持不变,确保了翻译的准确性.
- 双胺合成酶与癌症的发展有关,突变导致双胺缺乏症综合征.
- 二甲胺作为对抗SARS-CoV-2和HIV-1等病毒的限制因子,这些病毒准其合成酶以降解.
结论:
- 双胺是翻译中的关键因素,其影响延伸到人类健康.
- 了解二甲胺在癌症和病毒感染中的作用,为治疗提供了潜在的途径.
- 对二甲胺生物学的进一步研究对于解决各种临床挑战至关重要.
相关概念视频
Transfer RNA Synthesis
12.0K
One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
12.0K
Protein Modifications in the RER
5.2K
Modification of secretory and transmembrane proteins entering the rough ER begins in the ER lumen. These modifications aid in protein folding and stabilize the acquired tertiary structure. Protein modifications in the rough ER co-occur at different stages of protein folding.
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
5.2K
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
Covalently Linked Protein Regulators
6.8K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
6.8K
Phosphorylation
50.4K
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...
50.4K

