CFAP410具有双模块架构,其N端氨酸丰富的重复图案上有一个保留的表面补丁,用于绑定相互作用伙伴
Alexander Stadler1,2, Heloisa B Gabriel3, Laryssa V De Liz3
1Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria.
Frontiers in cell and developmental biology
|February 28, 2025
概括
纤毛和鞭毛相关蛋白410 (CFAP410) 突变通过破坏其结构而导致疾病. 这项研究揭示了N端域结构,解释了突变如何破坏蛋白质相互作用并导致纤毛发育障碍.
科学领域:
- 结构生物学是结构生物学.
- 细胞生物学 细胞生物学
- 遗传学 是一个遗传学.
背景情况:
- 纤毛和鞭毛相关蛋白410 (CFAP410) 对于纤毛发育至关重要.
- CFAP410中的突变与人类疾病有关,但其分子基础尚不清楚.
- 需要高分辨率的结构来理解CFAP410的功能和疾病机制.
研究的目的:
- 确定CFAP410 N端域 (NTD) 的高分辨率结构.
- 研究疾病相关突变对NTD结构和稳定性的影响.
- 阐明CFAP410突变导致人类疾病的分子机制.
主要方法:
- 进行X射线晶体学以确定Trypanosoma brucei* CFAP410 NTD的1.0-Å分辨率结构.
- 结构分析,以评估单氨基酸突变的影响.
- 评估蛋白质折叠和稳定性的生物物理方法.
主要成果:
- 获得了CFAP410 NTD的1.0-Å分辨率的详细晶体结构.
- 分析了致病突变,揭示了它们有可能破坏NTD结构的稳定性.
- 这些发现表明,CFAP410-NTD的结构不稳定会破坏与其他蛋白质的相互作用.
结论:
- 该研究提供了CFAP410 NTD的第一个高分辨率结构.
- CFAP410突变可能通过损害蛋白质结构完整性来引起疾病.
- CFAP410-NTD结构的不稳定性破坏了必需的蛋白质-蛋白质相互作用,导致纤毛发育缺陷和相关疾病.
相关概念视频
Conserved Binding Sites
4.1K
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...
4.1K
Assembly of Signaling Complexes
5.7K
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,...
5.7K
Protein Complexes with Interchangeable Parts
2.5K
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
2.5K
Catenins
2.3K
Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
2.3K
Intracellular Signaling Affects Focal Adhesions
2.5K
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...
2.5K
Immunoglobulin-like Cell Adhesion Molecules
3.2K
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...
3.2K


