26RFa被烧黄胺化RFamide受体识别的结构基础
Sanshan Jin1, Shimeng Guo2, Youwei Xu2
1Lingang Laboratory, Shanghai, China.
Cell discovery
|June 3, 2024
概括
对26RFa/QRFPR系统的结构洞察力揭示了独特的识别机制. 这有助于推进治疗肥胖和饮食障碍的药物设计,通过了解甲胺化RF-胺受体 (QRFPR) 相互作用.
科学领域:
- 结构生物学 结构生物学
- 神经内分泌学神经内分泌学
- 药理学 药理学是指药理学的学科.
背景情况:
- 神经26RFa/pyroglutamylated RF-amide受体 (QRFPR) 系统对于能量恒温至关重要.
- QRFPR是代谢和饮食障碍的有希望的药物标,如肥胖和糖尿病.
- 关于QRFPR的结构数据有限,阻碍了对其激活和药物开发的理解.
研究的目的:
- 为了确定结晶电子显微镜 (cryo-EM) 结构的Gq-合QRFPR绑定到26RFa.
- 阐明26RFa的识别和受体激活的分子机制.
- 为合理的药物设计提供结构基础,以QRFPR为目标.
主要方法:
- 低温电子显微镜 (cryo-EM) 用于解析与26RFa.Fa结合的QRFPR的结构.
- 对受体-相互作用的分析,专注于细胞外区域和跨膜结合口袋.
- 对RF-胺结合方式的比较分析.
主要成果:
- 确定了与26RFa.complex中的Gq合QRFPR的冷EM结构.
- 揭示了受体细胞外区域和的N端的独特组合.
- 阐明了在QRFPR跨膜口袋中的C终端七分的识别.
- 澄清了不同类的RF-胺小组的结合模式.
结论:
- 这项研究为26RFa/QRFPR复合体提供了第一个结构洞察.
- 了解独特的识别机制有助于针对代谢障碍的向药物设计.
- 结构数据有助于开发治疗肥胖,糖尿病和饮食障碍的疗法,通过准QRFPR.
相关概念视频
01:00Enzyme-linked Receptors
78.1K
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
78.1K
01:30Transducer Mechanism: G Protein–Coupled Receptors
1.9K
G Protein–Coupled Receptors (GPCRs) are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to various stimuli. GPCRs regulate critical physiological pathways and are excellent drug targets for treating diseases such as diabetes, cancer, obesity, depression, or Alzheimer's. Nearly 35% of approved drugs implement their therapeutic effects by selectively interacting with specific GPCRs.
GPCRs are also called heptahelical,...
GPCRs are also called heptahelical,...
1.9K
01:15G Protein-coupled Receptors
11.8K
G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
11.8K