揭示了CRBN分子合物的隐藏互动体
Kheewoong Baek1,2, Rebecca J Metivier1,2, Shourya S Roy Burman1,2
1Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.
Nature communications
|July 24, 2025
概括
研究人员开发了一种新的蛋白质组学工作流程,以发现分子粘点,识别了298种蛋白质和PPIL4.4的化合物. 这种方法使药物诱导的蛋白相互作用能够不受偏见的识别.
科学领域:
- 化学生物学 化学生物学
- 蛋白质组学是指蛋白质组学.
- 药物发现 药物发现 药物发现
背景情况:
- 分子剂诱导蛋白质之间的接近,以进行有针对性的修饰,调节或降解.
- 设计新的分子粘剂和识别它们的点仍然是化学生物学中的重大挑战.
- 无偏见的发现方法对于扩大分子合剂目标的目录至关重要.
研究的目的:
- 建立高通量蛋白质组学工作流程,以无偏见地识别分子粘点.
- 为了绘制cereblon (CRBN) 结合分子的相互作用景观.
- 发现新的化学点并开发新的治疗策略.
主要方法:
- 使用高通量亲和蛋白质组学工作流程,在细胞溶解物中使用E3酶活性受损的CRBN-DDB1ΔB.
- 采用丰富方法来识别既定技术可能错过的目标.
- 集成的计算工作流程用于目标信心估计和新基质的生物化学/结构验证.
主要成果:
- 揭示了298个由CRBN结合分子接剂招募的蛋白质标.
- 证明了丰富方法在发现新目标方面的有效性.
- 通过生物化学查,确定了以前未被向的蛋白质PPIL4的化合物.
结论:
- 该研究提供了CRBN招募的目标的全面清单.
- 提供了一种强大且可扩展的工作流程,用于识别细胞溶解物中药物诱导的蛋白相互作用.
- 这项工作有助于发现新的分子接标,并扩大治疗可能性.
相关概念视频
Assembly of Signaling Complexes
5.9K
Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
5.9K
Protein Networks
4.1K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.1K
Protein-protein Interfaces
13.3K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
13.3K
Intracellular Signaling Affects Focal Adhesions
2.8K
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...
2.8K
Immunoglobulin-like Cell Adhesion Molecules
3.4K
Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
3.4K
Covalently Linked Protein Regulators
7.2K
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....
7.2K


