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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | Fzd4/DEP complex | |||||||||
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![]() | GPCR complex / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() cerebellum vasculature morphogenesis / Wnt signaling pathway, calcium modulating pathway / Norrin signaling pathway / Negative regulation of TCF-dependent signaling by DVL-interacting proteins / extracellular matrix-cell signaling / progesterone secretion / retinal blood vessel morphogenesis / convergent extension involved in neural plate elongation / retina vasculature morphogenesis in camera-type eye / locomotion involved in locomotory behavior ...cerebellum vasculature morphogenesis / Wnt signaling pathway, calcium modulating pathway / Norrin signaling pathway / Negative regulation of TCF-dependent signaling by DVL-interacting proteins / extracellular matrix-cell signaling / progesterone secretion / retinal blood vessel morphogenesis / convergent extension involved in neural plate elongation / retina vasculature morphogenesis in camera-type eye / locomotion involved in locomotory behavior / Signaling by RNF43 mutants / segment specification / WNT5A-dependent internalization of FZD4 / regulation of vascular endothelial growth factor receptor signaling pathway / positive regulation of neuron projection arborization / Wnt receptor activity / non-canonical Wnt signaling pathway / endothelial cell differentiation / cochlea morphogenesis / Wnt-protein binding / clathrin-coated endocytic vesicle / WNT5:FZD7-mediated leishmania damping / positive regulation of dendrite morphogenesis / establishment of blood-brain barrier / 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 / lateral plasma membrane / positive regulation of signal transduction by p53 class mediator / negative regulation of cell-substrate adhesion / canonical Wnt signaling pathway / Regulation of FZD by ubiquitination / vasculogenesis / cellular response to retinoic acid / TCF dependent signaling in response to WNT / substrate adhesion-dependent cell spreading / Asymmetric localization of PCP proteins / Degradation of DVL / cellular response to leukemia inhibitory factor / regulation of actin cytoskeleton organization / neural tube closure / PDZ domain binding / positive regulation of JNK cascade / RHO GTPases Activate Formins / sensory perception of sound / clathrin-coated endocytic vesicle membrane / G protein-coupled receptor activity / small GTPase binding / Wnt signaling pathway / neuron differentiation / apical part of cell / Cargo recognition for clathrin-mediated endocytosis / cell-cell junction / Clathrin-mediated endocytosis / intracellular protein localization / signaling receptor activity / regulation of cell population proliferation / amyloid-beta binding / heart development / Ca2+ pathway / cytoplasmic vesicle / angiogenesis / protein-macromolecule adaptor activity / response to hypoxia / cell population proliferation / intracellular signal transduction / nuclear body / cilium / positive regulation of cell migration / protein heterodimerization activity / protein domain specific binding / ubiquitin protein ligase binding / dendrite / protein kinase binding / regulation of DNA-templated transcription / positive regulation of DNA-templated transcription / protein-containing complex binding / 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 | 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
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Downloads & links
-EMDB archive
Map data | ![]() | 55.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 16.1 KB 16.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 8.4 KB | Display | ![]() |
Images | ![]() | 87.5 KB | ||
Filedesc metadata | ![]() | 6.2 KB | ||
Others | ![]() ![]() | 59.4 MB 59.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 701.2 KB | Display | ![]() |
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Full document | ![]() | 700.8 KB | Display | |
Data in XML | ![]() | 16.1 KB | Display | |
Data in CIF | ![]() | 21.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8wm9MC ![]() 8wmaC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 1.1 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
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Sample components
-Entire : GPCR complex
Entire | Name: GPCR complex |
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Components |
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-Supramolecule #1: GPCR complex
Supramolecule | Name: GPCR complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 450 KDa |
-Macromolecule #1: Frizzled-4
Macromolecule | Name: Frizzled-4 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 60.047922 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MAWRGAGPSV PGAPGGVGLS LGLLLQLLLL LGPARGFGDE EERRCDPIRI SMCQNLGYNV TKMPNLVGHE LQTDAELQLT TFTPLIQYG CSSQLQFFLC SVYVPMCTEK INIPIGPCGG MCLSVKRRCE PVLKEFGFAW PESLNCSKFP PQNDHNHMCM E GPGDEEVP ...String: MAWRGAGPSV PGAPGGVGLS LGLLLQLLLL LGPARGFGDE EERRCDPIRI SMCQNLGYNV TKMPNLVGHE LQTDAELQLT TFTPLIQYG CSSQLQFFLC SVYVPMCTEK INIPIGPCGG MCLSVKRRCE PVLKEFGFAW PESLNCSKFP PQNDHNHMCM E GPGDEEVP LPHKTPIQPG EECHSVGTNS DQYIWVKRSL NCVLKCGYDA GLYSRSAKEF TDIWMAVWAS LCFISTAFTV LT FLIDSSR FSYPERPIIF LSMCYNIYSI AYIVRLTVGR ERISCDFEEA AEPVLIQEGL KNTGCAIIFL LLYFFGMASS IWW VILTLT WFLAAGLKWG HEAIEMHSSY FHIAAWAIPA VKTIVILIMR LVDADELTGL CYVGNQNLDA LTGFVVAPLF TYLV IGTLF IAAGLVALFK IRSNLQKDGT KTDKLERLMV KIGVFSVLYT VPATIVIACY FYEISNWALF RYSADDSNMA VEMLK IFMS LLVGITSGMW IWSAKTLHTW QKFYNRLVNS GKVKREKRGN GWVKPGKGSE TVV UniProtKB: Frizzled-4 |
-Macromolecule #2: Segment polarity protein dishevelled homolog DVL-2
Macromolecule | Name: Segment polarity protein dishevelled homolog DVL-2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 79.035953 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MAGSSTGGGG VGETKVIYHL DEEETPYLVK IPVPAERITL GDFKSVLQRP AGAKYFFKSM DQDFGVVKEE ISDDNARLPC FNGRVVSWL VSSDNPQPEM APPVHEPRAE LAPPAPPLPP LPPERTSGIG DSRPPSFHPN VSSSHENLEP ETETESVVSL R RERPRRRD ...String: MAGSSTGGGG VGETKVIYHL DEEETPYLVK IPVPAERITL GDFKSVLQRP AGAKYFFKSM DQDFGVVKEE ISDDNARLPC FNGRVVSWL VSSDNPQPEM APPVHEPRAE LAPPAPPLPP LPPERTSGIG DSRPPSFHPN VSSSHENLEP ETETESVVSL R RERPRRRD SSEHGAGGHR TGGPSRLERH LAGYESSSTL MTSELESTSL GDSDEEDTMS RFSSSTEQSS ASRLLKRHRR RR KQRPPRL ERTSSFSSVT DSTMSLNIIT VTLNMEKYNF LGISIVGQSN ERGDGGIYIG SIMKGGAVAA DGRIEPGDML LQV NDMNFE NMSNDDAVRV LRDIVHKPGP IVLTVAKCWD PSPQAYFTLP RNEPIQPIDP AAWVSHSAAL TGTFPAYPGS SSMS TITSG SSLPDGCEGR GLSVHTDMAS VTKAMAAPES GLEVRDRMWL KITIPNAFLG SDVVDWLYHH VEGFPERREA RKYAS GLLK AGLIRHTVNK ITFSEQCYYV FGDLSGGCES YLVNLSLNDN DGSSGASDQD TLAPLPGATP WPLLPTFSYQ YPAPHP YSP QPPPYHELSS YTYGGGSASS QHSEGSRSSG STRSDGGAGR TGRPEERAPE SKSGSGSESE PSSRGGSLRR GGEASGT SD GGPPPSRGST GGAPNLRAHP GLHPYGPPPG MALPYNPMMV VMMPPPPPPV PPAVQPPGAP PVRDLGSVPP ELTASRQS F HMAMGNPSEF FVDVM UniProtKB: Segment polarity protein dishevelled homolog DVL-2 |
-Macromolecule #3: CHOLESTEROL HEMISUCCINATE
Macromolecule | Name: CHOLESTEROL HEMISUCCINATE / type: ligand / ID: 3 / Number of copies: 10 / Formula: Y01 |
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Molecular weight | Theoretical: 486.726 Da |
Chemical component information | ![]() ChemComp-Y01: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.4 µm / Nominal defocus min: 1.2 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.53 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 95333 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |