+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-0966 | ||||||||||||
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Title | cryo-EM structure of C9ORF72-SMCR8-WDR41 | ||||||||||||
Map data | overall map | ||||||||||||
Sample |
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Keywords | ALS / FTD / GTPase / C9ORF72 / SMCR8 / WDR41 / GAP / GEF / PROTEIN BINDING | ||||||||||||
Function / homology | Function and homology information Atg1/ULK1 kinase complex / late endosome to lysosome transport / regulation of TORC1 signaling / negative regulation of autophagosome assembly / regulation of actin filament organization / guanyl-nucleotide exchange factor complex / negative regulation of immune response / regulation of autophagosome assembly / Flemming body / axon extension ...Atg1/ULK1 kinase complex / late endosome to lysosome transport / regulation of TORC1 signaling / negative regulation of autophagosome assembly / regulation of actin filament organization / guanyl-nucleotide exchange factor complex / negative regulation of immune response / regulation of autophagosome assembly / Flemming body / axon extension / presynaptic cytosol / negative regulation of exocytosis / positive regulation of autophagosome maturation / main axon / negative regulation of macroautophagy / protein kinase inhibitor activity / positive regulation of macroautophagy / positive regulation of TOR signaling / axonal growth cone / stress granule assembly / autophagosome / GTPase activator activity / negative regulation of protein phosphorylation / positive regulation of GTPase activity / guanyl-nucleotide exchange factor activity / cell projection / regulation of autophagy / P-body / autophagy / small GTPase binding / cytoplasmic stress granule / endocytosis / regulation of protein localization / presynapse / nuclear membrane / perikaryon / postsynapse / lysosome / endosome / lysosomal membrane / negative regulation of gene expression / intracellular membrane-bounded organelle / dendrite / chromatin / protein kinase binding / extracellular space / nucleoplasm / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||||||||
Authors | Tang D / Sheng J / Xu L / Zhan X / Yan C / Qi S | ||||||||||||
Funding support | China, 3 items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2020 Title: Cryo-EM structure of C9ORF72-SMCR8-WDR41 reveals the role as a GAP for Rab8a and Rab11a. Authors: Dan Tang / Jingwen Sheng / Liangting Xu / Xiechao Zhan / Jiaming Liu / Hui Jiang / Xiaoling Shu / Xiaoyu Liu / Tizhong Zhang / Lan Jiang / Cuiyan Zhou / Wenqi Li / Wei Cheng / Zhonghan Li / ...Authors: Dan Tang / Jingwen Sheng / Liangting Xu / Xiechao Zhan / Jiaming Liu / Hui Jiang / Xiaoling Shu / Xiaoyu Liu / Tizhong Zhang / Lan Jiang / Cuiyan Zhou / Wenqi Li / Wei Cheng / Zhonghan Li / Kunjie Wang / Kefeng Lu / Chuangye Yan / Shiqian Qi / Abstract: A massive intronic hexanucleotide repeat (GGGGCC) expansion in is a genetic origin of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Recently, C9ORF72, together with SMCR8 ...A massive intronic hexanucleotide repeat (GGGGCC) expansion in is a genetic origin of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Recently, C9ORF72, together with SMCR8 and WDR41, has been shown to regulate autophagy and function as Rab GEF. However, the precise function of C9ORF72 remains unclear. Here, we report the cryogenic electron microscopy (cryo-EM) structure of the human C9ORF72-SMCR8-WDR41 complex at a resolution of 3.2 Å. The structure reveals the dimeric assembly of a heterotrimer of C9ORF72-SMCR8-WDR41. Notably, the C-terminal tail of C9ORF72 and the DENN domain of SMCR8 play critical roles in the dimerization of the two protomers of the C9ORF72-SMCR8-WDR41 complex. In the protomer, C9ORF72 and WDR41 are joined by SMCR8 without direct interaction. WDR41 binds to the DENN domain of SMCR8 by the C-terminal helix. Interestingly, the prominent structural feature of C9ORF72-SMCR8 resembles that of the FLNC-FNIP2 complex, the GTPase activating protein (GAP) of RagC/D. Structural comparison and sequence alignment revealed that Arg147 of SMCR8 is conserved and corresponds to the arginine finger of FLCN, and biochemical analysis indicated that the Arg147 of SMCR8 is critical to the stimulatory effect of the C9ORF72-SMCR8 complex on Rab8a and Rab11a. Our study not only illustrates the basis of C9ORF72-SMCR8-WDR41 complex assembly but also reveals the GAP activity of the C9ORF72-SMCR8 complex. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_0966.map.gz | 78.4 MB | EMDB map data format | |
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Header (meta data) | emd-0966-v30.xml emd-0966.xml | 21.2 KB 21.2 KB | Display Display | EMDB header |
Images | emd_0966.png | 123.7 KB | ||
Filedesc metadata | emd-0966.cif.gz | 7.1 KB | ||
Others | emd_0966_additional_1.map.gz emd_0966_additional_2.map.gz | 14.8 MB 77.7 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-0966 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-0966 | HTTPS FTP |
-Validation report
Summary document | emd_0966_validation.pdf.gz | 549 KB | Display | EMDB validaton report |
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Full document | emd_0966_full_validation.pdf.gz | 548.5 KB | Display | |
Data in XML | emd_0966_validation.xml.gz | 6.2 KB | Display | |
Data in CIF | emd_0966_validation.cif.gz | 7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0966 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0966 | HTTPS FTP |
-Related structure data
Related structure data | 6lt0MC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_0966.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | overall map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.061 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: #1
File | emd_0966_additional_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: map for N terminal domains of B chain and C chain
File | emd_0966_additional_2.map | ||||||||||||
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Annotation | map for N terminal domains of B chain and C chain | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Dimer of C9-ORF72-SMCR8-WDR41
Entire | Name: Dimer of C9-ORF72-SMCR8-WDR41 |
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Components |
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-Supramolecule #1: Dimer of C9-ORF72-SMCR8-WDR41
Supramolecule | Name: Dimer of C9-ORF72-SMCR8-WDR41 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 400 KDa |
-Macromolecule #1: WD repeat-containing protein 41
Macromolecule | Name: WD repeat-containing protein 41 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 51.783805 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: MLRWLIGGGR EPQGLAEKSP LQTIGEEQTQ NPYTELLVLK AHHDIVRFLV QLDDYRFASA GDDGIVVVWN AQTGEKLLEL NGHTQKITA IITFPSLESC EEKNQLILTA SADRTVIVWD GDTTRQVQRI SCFQSTVKCL TVLQRLDVWL SGGNDLCVWN R KLDLLCKT ...String: MLRWLIGGGR EPQGLAEKSP LQTIGEEQTQ NPYTELLVLK AHHDIVRFLV QLDDYRFASA GDDGIVVVWN AQTGEKLLEL NGHTQKITA IITFPSLESC EEKNQLILTA SADRTVIVWD GDTTRQVQRI SCFQSTVKCL TVLQRLDVWL SGGNDLCVWN R KLDLLCKT SHLSDTGISA LVEIPKNCVV AAVGKELIIF RLVAPTEGSL EWDILEVKRL LDHQDNILSL INVNDLSFVT GS HVGELII WDALDWTMQA YERNFWDPSP QLDTQQEIKL CQKSNDISIH HFTCDEENVF AAVGRGLYVY SLQMKRVIAC QKT AHDSNV LHVARLPNRQ LISCSEDGSV RIWELREKQQ LAAEPVPTGF FNMWGFGRVS KQASQPVKKQ QENATSCSLE LIGD LIGHS SSVEMFLYFE DHGLVTCSAD HLIILWKNGE RESGLRSLRL FQKLEENGDL YLAV UniProtKB: WD repeat-containing protein 41 |
-Macromolecule #2: Guanine nucleotide exchange protein SMCR8
Macromolecule | Name: Guanine nucleotide exchange protein SMCR8 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 105.149094 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: MISAPDVVAF TKEEEYEEEP YNEPALPEEY SVPLFPFASQ GANPWSKLSG AKFSRDFILI SEFSEQVGPQ PLLTIPNDTK VFGTFDLNY FSLRIMSVDY QASFVGHPPG SAYPKLNFVE DSKVVLGDSK EGAFAYVHHL TLYDLEARGF VRPFCMAYIS A DQHKIMQQ ...String: MISAPDVVAF TKEEEYEEEP YNEPALPEEY SVPLFPFASQ GANPWSKLSG AKFSRDFILI SEFSEQVGPQ PLLTIPNDTK VFGTFDLNY FSLRIMSVDY QASFVGHPPG SAYPKLNFVE DSKVVLGDSK EGAFAYVHHL TLYDLEARGF VRPFCMAYIS A DQHKIMQQ FQELSAEFSR ASECLKTGNR KAFAGELEKK LKDLDYTRTV LHTETEIQKK ANDKGFYSSQ AIEKANELAS VE KSIIEHQ DLLKQIRSYP HRKLKGHDLC PGEMEHIQDQ ASQASTTSNP DESADTDLYT CRPAYTPKLI KAKSTKCFDK KLK TLEELC DTEYFTQTLA QLSHIEHMFR GDLCYLLTSQ IDRALLKQQH ITNFLFEDFV EVDDRMVEKQ ESIPSKPSQD RPPS SSLEE CPIPKVLISV GSYKSSVESV LIKMEQELGD EEYKEVEVTE LSSFDPQENL DYLDMDMKGS ISSGESIEVL GTEKS TSVL SKSDSQASLT VPLSPQVVRS KAVSHRTISE DSIEVLSTCP SEALIPDDFK ASYPSAINEE ESYPDGNEGA IRFQAS ISP PELGETEEGS IENTPSQIDS SCCIGKESDG QLVLPSTPAH THSDEDGVVS SPPQRHRQKD QGFRVDFSVE NANPSSR DN SCEGFPAYEL DPSHLLASRD ISKTSLDNYS DTTSYVSSVA STSSDRIPSA YPAGLSSDRH KKRAGQNALK FIRQYPFA H PAIYSLLSGR TLVVLGEDEA IVRKLVTALA IFVPSYGCYA KPVKHWASSP LHIMDFQKWK LIGLQRVASP AGAGTLHAL SRYSRYTSIL DLDNKTLRCP LYRGTLVPRL ADHRTQIKRG STYYLHVQSM LTQLCSKAFL YTFCHHLHLP THDKETEELV ASRQMSFLK LTLGLVNEDV RVVQYLAELL KLHYMQESPG TSHPMLRFDY VPSFLYKI UniProtKB: Guanine nucleotide exchange protein SMCR8 |
-Macromolecule #3: Guanine nucleotide exchange C9orf72
Macromolecule | Name: Guanine nucleotide exchange C9orf72 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 54.391477 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: MSTLCPPPSP AVAKTEIALS GKSPLLAATF AYWDNILGPR VRHIWAPKTE QVLLSDGEIT FLANHTLNGE ILRNAESGAI DVKFFVLSE KGVIIVSLIF DGNWNGDRST YGLSIILPQT ELSFYLPLHR VCVDRLTHII RKGRIWMHKE RQENVQKIIL E GTERMEDQ ...String: MSTLCPPPSP AVAKTEIALS GKSPLLAATF AYWDNILGPR VRHIWAPKTE QVLLSDGEIT FLANHTLNGE ILRNAESGAI DVKFFVLSE KGVIIVSLIF DGNWNGDRST YGLSIILPQT ELSFYLPLHR VCVDRLTHII RKGRIWMHKE RQENVQKIIL E GTERMEDQ GQSIIPMLTG EVIPVMELLS SMKSHSVPEE IDIADTVLND DDIGDSCHEG FLLNAISSHL QTCGCSVVVG SS AEKVNKI VRTLCLFLTP AERKCSRLCE AESSFKYESG LFVQGLLKDS TGSFVLPFRQ VMYAPYPTTH IDVDVNTVKQ MPP CHEHIY NQRRYMRSEL TAFWRATSEE DMAQDTIIYT DESFTPDLNI FQDVLHRDTL VKAFLDQVFQ LKPGLSLRST FLAQ FLLVL HRKALTLIKY IEDDTQKGKK PFKSLRNLKI DLDLTAEGDL NIIMALAEKI KPGLHSFIFG RPFYTSVQER DVLMT F UniProtKB: Guanine nucleotide exchange factor C9orf72 |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 1 mg/mL | ||||||||
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Buffer | pH: 8 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE | ||||||||
Vitrification | Cryogen name: ETHANE | ||||||||
Details | monodisperse |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Number grids imaged: 1 / Number real images: 5332 / Average exposure time: 0.25 sec. / Average electron dose: 5.3 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: DIFFRACTION |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: HELIUM |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Details | The atomic coordinates of the CSW complex was generated by combining homology modelling and de novo model building. |
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Refinement | Space: REAL / Protocol: RIGID BODY FIT |
Output model | PDB-6lt0: |