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Open data
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Basic information
| Entry | Database: PDB / ID: 22ve | ||||||||||||
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| Title | Cryo-EM structure of DOCK11 complexed with Cdc42(G15A) | ||||||||||||
Components |
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Keywords | SIGNALING PROTEIN / RhoGEF / complex | ||||||||||||
| Function / homology | Function and homology informationmarginal zone B cell differentiation / GBD domain binding / positive regulation of pinocytosis / COG complex / cardiac neural crest cell migration involved in outflow tract morphogenesis / storage vacuole / positive regulation of epithelial cell proliferation involved in lung morphogenesis / apolipoprotein A-I receptor binding / regulation of attachment of spindle microtubules to kinetochore / B cell homeostasis ...marginal zone B cell differentiation / GBD domain binding / positive regulation of pinocytosis / COG complex / cardiac neural crest cell migration involved in outflow tract morphogenesis / storage vacuole / positive regulation of epithelial cell proliferation involved in lung morphogenesis / apolipoprotein A-I receptor binding / regulation of attachment of spindle microtubules to kinetochore / B cell homeostasis / embryonic heart tube development / organelle transport along microtubule / endothelin receptor signaling pathway / Inactivation of CDC42 and RAC1 / positive regulation of pseudopodium assembly / host-mediated perturbation of viral process / leading edge membrane / regulation of filopodium assembly / neuropilin signaling pathway / establishment of Golgi localization / dendritic spine morphogenesis / establishment of epithelial cell apical/basal polarity / cell junction assembly / GTP-dependent protein binding / regulation of Rho protein signal transduction / heart process / regulation of lamellipodium assembly / thioesterase binding / regulation of stress fiber assembly / RHO GTPases activate KTN1 / DCC mediated attractive signaling / regulation of postsynapse organization / positive regulation of filopodium assembly / CD28 dependent Vav1 pathway / Wnt signaling pathway, planar cell polarity pathway / phagocytosis, engulfment / RHOV GTPase cycle / Myogenesis / establishment of cell polarity / spindle midzone / small GTPase-mediated signal transduction / positive regulation of cytokinesis / RHOJ GTPase cycle / RHOQ GTPase cycle / Golgi organization / RHOU GTPase cycle / macrophage differentiation / establishment or maintenance of cell polarity / CDC42 GTPase cycle / RHO GTPases activate PAKs / RHOG GTPase cycle / RAC3 GTPase cycle / RAC2 GTPase cycle / positive regulation of GTPase activity / positive regulation of stress fiber assembly / RHO GTPases Activate WASPs and WAVEs / positive regulation of lamellipodium assembly / positive regulation of substrate adhesion-dependent cell spreading / negative regulation of protein-containing complex assembly / RHO GTPases activate IQGAPs / GPVI-mediated activation cascade / RAC1 GTPase cycle / phagocytic vesicle / EPHB-mediated forward signaling / substantia nigra development / actin filament organization / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / guanyl-nucleotide exchange factor activity / integrin-mediated signaling pathway / acrosomal vesicle / regulation of actin cytoskeleton organization / endocytosis / FCGR3A-mediated phagocytosis / small monomeric GTPase / filopodium / SRC activates STAT3 in a quantitative manner, through Cadherin-11 (CDH11), RAC1 and gp130 (IL6ST) / EGFR downregulation / RHO GTPases Activate Formins / Regulation of actin dynamics for phagocytic cup formation / VEGFA-VEGFR2 Pathway / mitotic spindle / MAPK6/MAPK4 signaling / small GTPase binding / apical part of cell / cytoplasmic ribonucleoprotein granule / microtubule cytoskeleton / actin cytoskeleton organization / Activation of STAT3 by cadherin engagement / cell-cell junction / G beta:gamma signalling through CDC42 / ubiquitin protein ligase activity / positive regulation of cell growth / Factors involved in megakaryocyte development and platelet production / midbody / G protein activity / neuron projection / postsynapse / positive regulation of cell migration / Golgi membrane / focal adhesion Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.28 Å | ||||||||||||
Authors | Hisano, T. / Kukimoto-Niino, M. / Shinoda, T. / Katsura, K. / Shirouzu, M. | ||||||||||||
| Funding support | Japan, 3items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2026Title: Structural basis for membrane-dependent positive feedback regulation of DOCK11 by activated Cdc42. Authors: Tamao Hisano / Takehiro Shinoda / Mutsuko Kukimoto-Niino / Kazushige Katsura / Ryohei Kondo / Yoshiko Ishizuka-Katsura / Yukako Miyata-Yabuki / Kazuharu Hanada / Reiko Nakagawa / Akihiko ...Authors: Tamao Hisano / Takehiro Shinoda / Mutsuko Kukimoto-Niino / Kazushige Katsura / Ryohei Kondo / Yoshiko Ishizuka-Katsura / Yukako Miyata-Yabuki / Kazuharu Hanada / Reiko Nakagawa / Akihiko Nishikimi / Mikako Shirouzu / ![]() Abstract: The guanine nucleotide exchange factor DOCK11 is widely expressed across tissues and activates Cdc42, a Rho family GTPase that regulates cytoskeletal remodeling and cell polarity. Loss-of-function ...The guanine nucleotide exchange factor DOCK11 is widely expressed across tissues and activates Cdc42, a Rho family GTPase that regulates cytoskeletal remodeling and cell polarity. Loss-of-function mutations in DOCK11 have recently been linked to inborn errors of immunity. DOCK11 has also been implicated in facilitating hepatitis B virus infection in hepatocytes and has emerged as a potential target for therapeutic interventions. A positive feedback mechanism has been proposed for DOCK11-mediated Cdc42 activation; however, the structural basis for this regulation has remained unclear. Here we report the cryoelectron microscopy structures of full-length DOCK11 as an apo dimer, a binary complex with nucleotide-free Cdc42, and a ternary complex containing both nucleotide-free and activated Cdc42. DOCK11 predominantly adopts a U-shaped dimer that binds to nucleotide-free Cdc42 via the catalytic domain, whereas activated Cdc42 engages a distal site within the armadillo-repeat domain. Biochemical and cellular analyses demonstrate that binding of activated Cdc42 is critical for enhancing the membrane-dependent nucleotide exchange activity of DOCK11, promoting its localization to the plasma membrane, and facilitating intracellular activation of Cdc42. We also determined the structure of the membrane-bound ternary complex using membrane-coated grids. Strikingly, the ternary complex adopts an extended conformation that aligns multiple membrane-contact elements, revealing how activated Cdc42 stabilizes DOCK11 membrane binding for efficient exchange activity. Collectively, these findings provide a structural framework for the coordinated mechanism underlying membrane-dependent positive feedback in Rho GTPase signaling. | ||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 22ve.cif.gz | 1.3 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb22ve.ent.gz | 1 MB | Display | PDB format |
| PDBx/mmJSON format | 22ve.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/2v/22ve ftp://data.pdbj.org/pub/pdb/validation_reports/2v/22ve | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 68712MC ![]() 22vdC ![]() 22vfC ![]() 22vgC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 238396.047 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DOCK11, ZIZ2 / Cell line (production host): FreeStyle 293-F / Production host: Homo sapiens (human) / References: UniProt: Q5JSL3#2: Protein | Mass: 21475.562 Da / Num. of mol.: 2 / Mutation: G15A Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Description: cell-free synthesis / Gene: CDC42 / Production host: ![]() Has protein modification | N | |
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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: Binary complex of DOCK11 with Cdc42(G15A) / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 8 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Instrument: FEI VITROBOT MARK IV / 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: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 50.4 e/Å2 / Film or detector model: GATAN K3 BIOCONTINUUM (6k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.28 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 117660 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||
| Atomic model building | 3D fitting-ID: 1 / Source name: PDB / Type: experimental model
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| Refinement | Highest resolution: 4.28 Å Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)
Japan, 3items
Citation






PDBj

















FIELD EMISSION GUN
