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Open data
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Basic information
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| Title | Cryo-EM structure of WAVE Regulatory Complex | |||||||||
Map data | WRC230VCA complex sharpened map | |||||||||
Sample |
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Keywords | actin regulator / GTPase binding protein / cytoskeletal regulator / CELL INVASION | |||||||||
| Function / homology | Function and homology informationzygotic determination of anterior/posterior axis, embryo / dendritic transport of mitochondrion / SCAR complex / notochord morphogenesis / mesodermal cell migration / positive regulation of neurotrophin TRK receptor signaling pathway / lamellipodium morphogenesis / basal protein localization / paraxial mesoderm morphogenesis / positive regulation of Arp2/3 complex-mediated actin nucleation ...zygotic determination of anterior/posterior axis, embryo / dendritic transport of mitochondrion / SCAR complex / notochord morphogenesis / mesodermal cell migration / positive regulation of neurotrophin TRK receptor signaling pathway / lamellipodium morphogenesis / basal protein localization / paraxial mesoderm morphogenesis / positive regulation of Arp2/3 complex-mediated actin nucleation / embryonic body morphogenesis / establishment or maintenance of actin cytoskeleton polarity / cell migration involved in gastrulation / regulation of actin polymerization or depolymerization / Arp2/3 complex binding / dendrite extension / regulation of translation at postsynapse, modulating synaptic transmission / modification of postsynaptic actin cytoskeleton / embryonic foregut morphogenesis / regulation of actin filament polymerization / regulation of modification of postsynaptic actin cytoskeleton / endoderm development / RNA 7-methylguanosine cap binding / cell projection assembly / ruffle organization / embryonic heart tube development / axon extension / apical protein localization / cortical actin cytoskeleton organization / lamellipodium assembly / protein kinase A binding / protein kinase A regulatory subunit binding / positive regulation of actin filament polymerization / filamentous actin / Rac protein signal transduction / lamellipodium membrane / RHOG GTPase cycle / RAC2 GTPase cycle / RAC3 GTPase cycle / RHO GTPases Activate WASPs and WAVEs / somitogenesis / positive regulation of lamellipodium assembly / neuron projection morphogenesis / cellular response to brain-derived neurotrophic factor stimulus / ruffle / translation repressor activity / actin filament polymerization / RAC1 GTPase cycle / dendrite cytoplasm / receptor-mediated endocytosis / axon guidance / actin filament organization / central nervous system development / neural tube closure / mitochondrion organization / FCGR3A-mediated phagocytosis / filopodium / positive regulation of protein-containing complex assembly / cell motility / Regulation of actin dynamics for phagocytic cup formation / small GTPase binding / VEGFA-VEGFR2 Pathway / cognition / specific granule lumen / cell morphogenesis / positive regulation of fibroblast proliferation / actin filament binding / tertiary granule lumen / cell migration / regulation of cell shape / lamellipodium / actin cytoskeleton / regulation of translation / regulation of protein localization / actin binding / actin cytoskeleton organization / protein-containing complex assembly / fibroblast proliferation / secretory granule lumen / in utero embryonic development / mitochondrial outer membrane / cytoskeleton / postsynapse / neuron projection / protein stabilization / focal adhesion / intracellular membrane-bounded organelle / apoptotic process / synapse / Neutrophil degranulation / protein-containing complex binding / perinuclear region of cytoplasm / protein-containing complex / extracellular exosome / extracellular region / nucleoplasm / identical protein binding / cytosol Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
Authors | Ding B / Yang S / Chen B / Chowdhury S | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Nat Commun / Year: 2022Title: Structures reveal a key mechanism of WAVE regulatory complex activation by Rac1 GTPase. Authors: Bojian Ding / Sheng Yang / Matthias Schaks / Yijun Liu / Abbigale J Brown / Klemens Rottner / Saikat Chowdhury / Baoyu Chen / ![]() Abstract: The Rho-family GTPase Rac1 activates the WAVE regulatory complex (WRC) to drive Arp2/3 complex-mediated actin polymerization in many essential processes. Rac1 binds to WRC at two distinct sites-the ...The Rho-family GTPase Rac1 activates the WAVE regulatory complex (WRC) to drive Arp2/3 complex-mediated actin polymerization in many essential processes. Rac1 binds to WRC at two distinct sites-the A and D sites. Precisely how Rac1 binds and how the binding triggers WRC activation remain unknown. Here we report WRC structures by itself, and when bound to single or double Rac1 molecules, at ~3 Å resolutions by cryogenic-electron microscopy. The structures reveal that Rac1 binds to the two sites by distinct mechanisms, and binding to the A site, but not the D site, drives WRC activation. Activation involves a series of unique conformational changes leading to the release of sequestered WCA (WH2-central-acidic) polypeptide, which stimulates the Arp2/3 complex to polymerize actin. Together with biochemical and cellular analyses, the structures provide a novel mechanistic understanding of how the Rac1-WRC-Arp2/3-actin signaling axis is regulated in diverse biological processes and diseases. | |||||||||
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_26732.map.gz | 8.4 MB | EMDB map data format | |
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| Header (meta data) | emd-26732-v30.xml emd-26732.xml | 28.5 KB 28.5 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_26732_fsc.xml | 11.7 KB | Display | FSC data file |
| Images | emd_26732.png | 119.8 KB | ||
| Masks | emd_26732_msk_1.map | 64 MB | Mask map | |
| Filedesc metadata | emd-26732.cif.gz | 8.7 KB | ||
| Others | emd_26732_additional_1.map.gz emd_26732_half_map_1.map.gz emd_26732_half_map_2.map.gz | 8.4 MB 57.1 MB 57.1 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-26732 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-26732 | HTTPS FTP |
-Validation report
| Summary document | emd_26732_validation.pdf.gz | 895.1 KB | Display | EMDB validaton report |
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| Full document | emd_26732_full_validation.pdf.gz | 894.7 KB | Display | |
| Data in XML | emd_26732_validation.xml.gz | 16 KB | Display | |
| Data in CIF | emd_26732_validation.cif.gz | 21.1 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-26732 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-26732 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7uscMC ![]() 7usdC ![]() 7useC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_26732.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | WRC230VCA complex sharpened map | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.8757 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Mask #1
| File | emd_26732_msk_1.map | ||||||||||||
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-Additional map: WRC230VCA complex masked unsharpened map
| File | emd_26732_additional_1.map | ||||||||||||
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| Annotation | WRC230VCA complex masked unsharpened map | ||||||||||||
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-Half map: WRC230VCA complex unfiltered unmasked unsharpened first half map
| File | emd_26732_half_map_1.map | ||||||||||||
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| Annotation | WRC230VCA complex unfiltered unmasked unsharpened first half map | ||||||||||||
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-Half map: WRC230VCA complex unfiltered unmasked unsharpened second half map
| File | emd_26732_half_map_2.map | ||||||||||||
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| Annotation | WRC230VCA complex unfiltered unmasked unsharpened second half map | ||||||||||||
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Sample components
-Entire : WAVE regulatory complex
| Entire | Name: WAVE regulatory complex |
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| Components |
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-Supramolecule #1: WAVE regulatory complex
| Supramolecule | Name: WAVE regulatory complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 340 KDa |
-Macromolecule #1: Cytoplasmic FMR1-interacting protein 1
| Macromolecule | Name: Cytoplasmic FMR1-interacting protein 1 / type: protein_or_peptide / ID: 1 Details: This construct contains two additional uncleaved residues "GA" in the N terminus from the construct design and purification procedure. Densities for these residues are not observed in the ...Details: This construct contains two additional uncleaved residues "GA" in the N terminus from the construct design and purification procedure. Densities for these residues are not observed in the map and were not included in the sample sequence to avoid numbering shifts. Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 145.36375 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MAAQVTLEDA LSNVDLLEEL PLPDQQPCIE PPPSSLLYQP NFNTNFEDRN AFVTGIARYI EQATVHSSMN EMLEEGQEYA VMLYTWRSC SRAIPQVKCN EQPNRVEIYE KTVEVLEPEV TKLMNFMYFQ RNAIERFCGE VRRLCHAERR KDFVSEAYLI T LGKFINMF ...String: MAAQVTLEDA LSNVDLLEEL PLPDQQPCIE PPPSSLLYQP NFNTNFEDRN AFVTGIARYI EQATVHSSMN EMLEEGQEYA VMLYTWRSC SRAIPQVKCN EQPNRVEIYE KTVEVLEPEV TKLMNFMYFQ RNAIERFCGE VRRLCHAERR KDFVSEAYLI T LGKFINMF AVLDELKNMK CSVKNDHSAY KRAAQFLRKM ADPQSIQESQ NLSMFLANHN KITQSLQQQL EVISGYEELL AD IVNLCVD YYENRMYLTP SEKHMLLKVM GFGLYLMDGS VSNIYKLDAK KRINLSKIDK YFKQLQVVPL FGDMQIELAR YIK TSAHYE ENKSRWTCTS SGSSPQYNIC EQMIQIREDH MRFISELARY SNSEVVTGSG RQEAQKTDAE YRKLFDLALQ GLQL LSQWS AHVMEVYSWK LVHPTDKYSN KDCPDSAEEY ERATRYNYTS EEKFALVEVI AMIKGLQVLM GRMESVFNHA IRHTV YAAL QDFSQVTLRE PLRQAIKKKK NVIQSVLQAI RKTVCDWETG HEPFNDPALR GEKDPKSGFD IKVPRRAVGP SSTQLY MVR TMLESLIADK SGSKKTLRSS LEGPTILDIE KFHRESFFYT HLINFSETLQ QCCDLSQLWF REFFLELTMG RRIQFPI EM SMPWILTDHI LETKEASMME YVLYSLDLYN DSAHYALTRF NKQFLYDEIE AEVNLCFDQF VYKLADQIFA YYKVMAGS L LLDKRLRSEC KNQGATIHLP PSNRYETLLK QRHVQLLGRS IDLNRLITQR VSAAMYKSLE LAIGRFESED LTSIVELDG LLEINRMTHK LLSRYLTLDG FDAMFREANH NVSAPYGRIT LHVFWELNYD FLPNYCYNGS TNRFVRTVLP FSQEFQRDKQ PNAQPQYLH GSKALNLAYS SIYGSYRNFV GPPHFQVICR LLGYQGIAVV MEELLKVVKS LLQGTILQYV KTLMEVMPKI C RLPRHEYG SPGILEFFHH QLKDIVEYAE LKTVCFQNLR EVGNAILFCL LIEQSLSLEE VCDLLHAAPF QNILPRVHVK EG ERLDAKM KRLESKYAPL HLVPLIERLG TPQQIAIARE GDLLTKERLC CGLSMFEVIL TRIRSFLDDP IWRGPLPSNG VMH VDECVE FHRLWSAMQF VYCIPVGTHE FTVEQCFGDG LHWAGCMIIV LLGQQRRFAV LDFCYHLLKV QKHDGKDEII KNVP LKKMV ERIRKFQILN DEIITILDKY LKSGDGEGTP VEHVRCFQPP IHQSLASS UniProtKB: Cytoplasmic FMR1-interacting protein 1 |
-Macromolecule #2: Nck-associated protein 1
| Macromolecule | Name: Nck-associated protein 1 / type: protein_or_peptide / ID: 2 Details: This construct contains two additional uncleaved residues "GA" in the N terminus from the construct design and purification procedure. Densities for these residues are not observed in the ...Details: This construct contains two additional uncleaved residues "GA" in the N terminus from the construct design and purification procedure. Densities for these residues are not observed in the map and were not included in the sample sequence to avoid numbering shifts. Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 128.940727 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MSRSVLQPSQ QKLAEKLTIL NDRGVGMLTR LYNIKKACGD PKAKPSYLID KNLESAVKFI VRKFPAVETR NNNQQLAQLQ KEKSEILKN LALYYFTFVD VMEFKDHVCE LLNTIDVCQV FFDITVNFDL TKNYLDLIIT YTTLMILLSR IEERKAIIGL Y NYAHEMTH ...String: MSRSVLQPSQ QKLAEKLTIL NDRGVGMLTR LYNIKKACGD PKAKPSYLID KNLESAVKFI VRKFPAVETR NNNQQLAQLQ KEKSEILKN LALYYFTFVD VMEFKDHVCE LLNTIDVCQV FFDITVNFDL TKNYLDLIIT YTTLMILLSR IEERKAIIGL Y NYAHEMTH GASDREYPRL GQMIVDYENP LKKMMEEFVP HSKSLSDALI SLQMVYPRRN LSADQWRNAQ LLSLISAPST ML NPAQSDT MPCEYLSLDA MEKWIIFGFI LCHGILNTDA TALNLWKLAL QSSSCLSLFR DEVFHIHKAA EDLFVNIRGY NKR INDIRE CKEAAVSHAG SMHRERRKFL RSALKELATV LSDQPGLLGP KALFVFMALS FARDEIIWLL RHADNMPKKS ADDF IDKHI AELIFYMEEL RAHVRKYGPV MQRYYVQYLS GFDAVVLNEL VQNLSVCPED ESIIMSSFVN TMTSLSVKQV EDGEV FDFR GMRLDWFRLQ AYTSVSKASL GLADHRELGK MMNTIIFHTK MVDSLVEMLV ETSDLSIFCF YSRAFEKMFQ QCLELP SQS RYSIAFPLLC THFMSCTHEL CPEERHHIGD RSLSLCNMFL DEMAKQARNL ITDICTEQCT LSDQLLPKHC AKTISQA VN KKSKKQTGKK GEPEREKPGV ESMRKNRLVV TNLDKLHTAL SELCFSINYV PNMVVWEHTF TPREYLTSHL EIRFTKSI V GMTMYNQATQ EIAKPSELLT SVRAYMTVLQ SIENYVQIDI TRVFNNVLLQ QTQHLDSHGE PTITSLYTNW YLETLLRQV SNGHIAYFPA MKAFVNLPTE NELTFNAEEY SDISEMRSLS ELLGPYGMKF LSESLMWHIS SQVAELKKLV VENVDVLTQM RTSFDKPDQ MAALFKRLSS VDSVLKRMTI IGVILSFRSL AQEALRDVLS YHIPFLVSSI EDFKDHIPRE TDMKVAMNVY E LSSAAGLP CEIDPALVVA LSSQKSENIS PEEEYKIACL LMVFVAVSLP TLASNVMSQY SPAIEGHCNN IHCLAKAINQ IA AALFTIH KGSIEDRLKE FLALASSSLL KIGQETDKTT TRNRESVYLL LDMIVQESPF LTMDLLESCF PYVLLRNAYH AVY KQSVTS SA UniProtKB: Nck-associated protein 1 |
-Macromolecule #3: Wiskott-Aldrich syndrome protein family member 1
| Macromolecule | Name: Wiskott-Aldrich syndrome protein family member 1 / type: protein_or_peptide / ID: 3 Details: Residues 231-248 are inserted as a flexible linker sequence. This construct contains two additional uncleaved residues "GA" in the N terminus from the construct design and purification ...Details: Residues 231-248 are inserted as a flexible linker sequence. This construct contains two additional uncleaved residues "GA" in the N terminus from the construct design and purification procedure. Densities for these residues are not observed in the map and were not included in the sample sequence to avoid numbering shifts. Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 37.009406 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MPLVKRNIDP RHLCHTALPR GIKNELECVT NISLANIIRQ LSSLSKYAED IFGELFNEAH SFSFRVNSLQ ERVDRLSVSV TQLDPKEEE LSLQDITMRK AFRSSTIQDQ QLFDRKTLPI PLQETYDVCE QPPPLNILTP YRDDGKEGLK FYTNPSYFFD L WKEKMLQD ...String: MPLVKRNIDP RHLCHTALPR GIKNELECVT NISLANIIRQ LSSLSKYAED IFGELFNEAH SFSFRVNSLQ ERVDRLSVSV TQLDPKEEE LSLQDITMRK AFRSSTIQDQ QLFDRKTLPI PLQETYDVCE QPPPLNILTP YRDDGKEGLK FYTNPSYFFD L WKEKMLQD TEDKRKEKRK QKQKNLDRPH EPEKVPRAPH DRRREWQKLA QGPELAEDDA NLLHKHIEVA NGGGSGGSGG SG GSGGSGG SKRHPSTLPV ISDARSVLLE AIRKGIQLRK VEEQREQEAK HERIENDVAT ILSRRIAVEY SDSEDDSEFD EVD WLE UniProtKB: Actin-binding protein WASF1, Actin-binding protein WASF1 |
-Macromolecule #4: Protein BRICK1
| Macromolecule | Name: Protein BRICK1 / type: protein_or_peptide / ID: 4 Details: This construct contains uncleaved residues "GHMGAA" in the N terminus from the construct design and purification procedure. Densities for the residues are not observed in the map and were ...Details: This construct contains uncleaved residues "GHMGAA" in the N terminus from the construct design and purification procedure. Densities for the residues are not observed in the map and were not included in the sample sequence to avoid numbering shifts. Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 8.756915 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MAGQEDPVQR EIHQDWANRE YIEIITSSIK KIADFLNSFD MSCRSRLATL NEKLTALERR IEYIEARVTK GETLT UniProtKB: Protein BRICK1 |
-Macromolecule #5: Abl interactor 2
| Macromolecule | Name: Abl interactor 2 / type: protein_or_peptide / ID: 5 Details: The sequence only contains residues 1-158. Also, there are two additional uncleaved residues "GH" in the N terminus from the construct design and purification procedure. Densities for these ...Details: The sequence only contains residues 1-158. Also, there are two additional uncleaved residues "GH" in the N terminus from the construct design and purification procedure. Densities for these residues are not observed in the map and were not included in the sample sequence to avoid numbering shifts. Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 18.041482 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MAELQMLLEE EIPGGRRALF DSYTNLERVA DYCENNYIQS ADKQRALEET KAYTTQSLAS VAYLINTLAN NVLQMLDIQA SQLRRMESS INHISQTVDI HKEKVARREI GILTTNKNTS RTHKIIAPAN LERPVRYIRK PIDYTILDDI GHGVKVSTQ UniProtKB: Abl interactor 2 |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 0.41 mg/mL |
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| Buffer | pH: 7 |
| Grid | Model: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY ARRAY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 120 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.019 kPa / Details: 30 mA |
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277.15 K / Instrument: HOMEMADE PLUNGER |
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Electron microscopy
| Microscope | FEI TALOS ARCTICA |
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| Details | Data were collected by shifting the stage to the target exposure positions. |
| Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 4096 pixel / Digitization - Dimensions - Height: 4096 pixel / Number grids imaged: 1 / Number real images: 2913 / Average exposure time: 40.0 sec. / Average electron dose: 44.06 e/Å2 Details: Each micrograph was acquired as dose-fractionated movies consisting of 62 frames per movie. |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | C2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.2 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 120000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
United States, 1 items
Citation











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Trichoplusia ni (cabbage looper)
Processing
FIELD EMISSION GUN


