通过结合体诱导的拓学变化调节血栓活性,在血栓结合的阿帕特马体中
Shogo Sasaki1, Yue Ma2,3, Takatsugu Hirokawa4,5
1Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan. knaga@go.tuat.ac.jp.
概括
一种新型的配体 (6LCO) 改变了血栓结合性体 (TBA) 的反平行G-四重复 (G4) 结构,使其具有平行拓. 这种结构性变化废除了TBA.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药用化学 医学化学
背景情况:
- 热血素结合性胺体 (TBA) 是一种具有反平行拓的G-四重复 (G4) 结构.
- TBA与血栓激素相互作用,抑制其酶活性.
研究的目的:
- 为了研究一个G4拓改变接体 (6LCO) 对TBA结构和功能的影响.
- 探索拓改变G4联体作为治疗剂的潜力.
主要方法:
- 使用生物物理技术对TBA G4结构进行表征.
- 在6LCO.CO的存在下评估TBA的胆固醇抑制活性.
- 分析G4联体诱导的结构变化.
主要成果:
- 体6LCO成功地将反平行TBA G4拓改变为平行拓.
- 由6LCO进行的拓学变化取消了TBA的血栓抑制活性.
- 这表明G4连接体可以通过拓改变调节体功能.
结论:
- 改变 G4 拓的 G4 配体可以破坏阿巴 - 目标相互作用.
- 拓改变G4连接体是开发向G4结合蛋白的药物的有希望的策略.
- 对这些连接体的进一步研究可能会导致各种疾病的新疗法.
相关概念视频
Ligand Binding and Linkage
4.8K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
4.8K
Intracellular Signaling Affects Focal Adhesions
2.7K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
2.7K
Ligand Binding Sites
12.9K
Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
12.9K
Anticoagulant Drugs: Low-Molecular-Weight Heparins
763
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
763


