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Open data
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Basic information
Entry | Database: PDB / ID: 8wm9 | ||||||
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Title | Fzd4/DEP complex | ||||||
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![]() | MEMBRANE PROTEIN / GPCR complex | ||||||
Function / homology | ![]() cerebellum vasculature morphogenesis / Wnt signaling pathway, calcium modulating pathway / Norrin signaling pathway / extracellular matrix-cell signaling / Negative regulation of TCF-dependent signaling by DVL-interacting proteins / progesterone secretion / convergent extension involved in neural plate elongation / retinal blood vessel morphogenesis / retina vasculature morphogenesis in camera-type eye / locomotion involved in locomotory behavior ...cerebellum vasculature morphogenesis / Wnt signaling pathway, calcium modulating pathway / Norrin signaling pathway / extracellular matrix-cell signaling / Negative regulation of TCF-dependent signaling by DVL-interacting proteins / progesterone secretion / convergent extension involved in neural plate elongation / retinal blood vessel morphogenesis / retina vasculature morphogenesis in camera-type eye / locomotion involved in locomotory behavior / Signaling by RNF43 mutants / cochlea morphogenesis / segment specification / WNT5A-dependent internalization of FZD4 / Wnt receptor activity / regulation of vascular endothelial growth factor receptor signaling pathway / positive regulation of neuron projection arborization / non-canonical Wnt signaling pathway / Wnt-protein binding / clathrin-coated endocytic vesicle / endothelial cell differentiation / establishment of blood-brain barrier / WNT5:FZD7-mediated leishmania damping / positive regulation of dendrite morphogenesis / frizzled binding / Signaling by Hippo / PCP/CE pathway / Class B/2 (Secretin family receptors) / cytokine receptor activity / WNT mediated activation of DVL / Disassembly of the destruction complex and recruitment of AXIN to the membrane / Wnt signaling pathway, planar cell polarity pathway / aggresome / heart looping / cytokine binding / outflow tract morphogenesis / negative regulation of cell-substrate adhesion / lateral plasma membrane / canonical Wnt signaling pathway / vasculogenesis / positive regulation of JUN kinase activity / cellular response to retinoic acid / Regulation of FZD by ubiquitination / substrate adhesion-dependent cell spreading / cellular response to leukemia inhibitory factor / TCF dependent signaling in response to WNT / Asymmetric localization of PCP proteins / positive regulation of DNA-binding transcription factor activity / PDZ domain binding / RHO GTPases Activate Formins / regulation of actin cytoskeleton organization / Degradation of DVL / neural tube closure / positive regulation of JNK cascade / sensory perception of sound / clathrin-coated endocytic vesicle membrane / G protein-coupled receptor activity / neuron differentiation / small GTPase binding / Wnt signaling pathway / apical part of cell / protein localization / cell-cell junction / Cargo recognition for clathrin-mediated endocytosis / signaling receptor activity / Clathrin-mediated endocytosis / amyloid-beta binding / heart development / regulation of cell population proliferation / Ca2+ pathway / cytoplasmic vesicle / protein-macromolecule adaptor activity / angiogenesis / cell population proliferation / positive regulation of protein phosphorylation / response to hypoxia / nuclear body / intracellular signal transduction / positive regulation of cell migration / protein domain specific binding / protein heterodimerization activity / dendrite / ubiquitin protein ligase binding / regulation of DNA-templated transcription / protein-containing complex binding / protein kinase binding / positive regulation of DNA-templated transcription / glutamatergic synapse / cell surface / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / nucleoplasm / identical protein binding / nucleus / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.53 Å | ||||||
![]() | He, Y. / Qian, Y. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis of Frizzled 4 in recognition of Dishevelled 2 unveils mechanism of WNT signaling activation. Authors: Yu Qian / Zhengxiong Ma / Zhenmei Xu / Yaning Duan / Yangjie Xiong / Ruixue Xia / Xinyan Zhu / Zongwei Zhang / Xinyu Tian / Han Yin / Jian Liu / Jing Song / Yang Lu / Anqi Zhang / Changyou ...Authors: Yu Qian / Zhengxiong Ma / Zhenmei Xu / Yaning Duan / Yangjie Xiong / Ruixue Xia / Xinyan Zhu / Zongwei Zhang / Xinyu Tian / Han Yin / Jian Liu / Jing Song / Yang Lu / Anqi Zhang / Changyou Guo / Lihua Jin / Woo Jae Kim / Jiyuan Ke / Fei Xu / Zhiwei Huang / Yuanzheng He / ![]() Abstract: WNT signaling is fundamental in development and homeostasis, but how the Frizzled receptors (FZDs) propagate signaling remains enigmatic. Here, we present the cryo-EM structure of FZD4 engaged with ...WNT signaling is fundamental in development and homeostasis, but how the Frizzled receptors (FZDs) propagate signaling remains enigmatic. Here, we present the cryo-EM structure of FZD4 engaged with the DEP domain of Dishevelled 2 (DVL2), a key WNT transducer. We uncover a distinct binding mode where the DEP finger-loop inserts into the FZD4 cavity to form a hydrophobic interface. FZD4 intracellular loop 2 (ICL2) additionally anchors the complex through polar contacts. Mutagenesis validates the structural observations. The DEP interface is highly conserved in FZDs, indicating a universal mechanism by which FZDs engage with DVLs. We further reveal that DEP mimics G-protein/β-arrestin/GRK to recognize an active conformation of receptor, expanding current GPCR engagement models. Finally, we identify a distinct FZD4 dimerization interface. Our findings delineate the molecular determinants governing FZD/DVL assembly and propagation of WNT signaling, providing long-sought answers underlying WNT signal transduction. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 160.3 KB | Display | ![]() |
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PDB format | ![]() | 116.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.5 MB | Display | ![]() |
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Full document | ![]() | 1.6 MB | Display | |
Data in XML | ![]() | 39.8 KB | Display | |
Data in CIF | ![]() | 55.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 37646MC ![]() 8wmaC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
#1: Protein | Mass: 60047.922 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | | Mass: 79035.953 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #3: Chemical | ChemComp-Y01 / Has ligand of interest | N | Has protein modification | Y | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: GPCR complex / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Molecular weight | Value: 0.45 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2400 nm / Nominal defocus min: 1200 nm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 3.53 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 95333 / Symmetry type: POINT |