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Open data
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Basic information
| Entry | Database: PDB / ID: 7mge | |||||||||||||||||||||||||||
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| Title | Structure of C9orf72:SMCR8:WDR41 in complex with ARF1 | |||||||||||||||||||||||||||
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Keywords | TRANSPORT PROTEIN / complex / autophagy / ALS / GAP / small GTPase | |||||||||||||||||||||||||||
| Function / homology | Function and homology informationmitotic cleavage furrow ingression / trans-Golgi Network Vesicle Budding / Atg1/ULK1 kinase complex / Glycosphingolipid transport / regulation of receptor internalization / late endosome to lysosome transport / Intra-Golgi traffic / regulation of Arp2/3 complex-mediated actin nucleation / negative regulation of immune response / regulation of TORC1 signaling ...mitotic cleavage furrow ingression / trans-Golgi Network Vesicle Budding / Atg1/ULK1 kinase complex / Glycosphingolipid transport / regulation of receptor internalization / late endosome to lysosome transport / Intra-Golgi traffic / regulation of Arp2/3 complex-mediated actin nucleation / negative regulation of immune response / regulation of TORC1 signaling / autophagosome-lysosome fusion / Synthesis of PIPs at the Golgi membrane / regulation of actin filament organization / guanyl-nucleotide exchange factor complex / negative regulation of autophagosome assembly / regulation of autophagosome assembly / Nef Mediated CD4 Down-regulation / dendritic spine organization / Flemming body / regulation of synaptic vesicle cycle / axon extension / positive regulation of autophagosome maturation / long-term synaptic depression / negative regulation of exocytosis / COPI-dependent Golgi-to-ER retrograde traffic / Lysosome Vesicle Biogenesis / negative regulation of macroautophagy / Golgi Associated Vesicle Biogenesis / negative regulation of protein phosphorylation / Synthesis of PIPs at the plasma membrane / protein kinase inhibitor activity / cell leading edge / positive regulation of macroautophagy / main axon / intracellular copper ion homeostasis / positive regulation of TOR signaling / axonal growth cone / COPI-mediated anterograde transport / presynaptic cytosol / vesicle-mediated transport / stress granule assembly / MHC class II antigen presentation / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / GTPase activator activity / autophagosome / guanyl-nucleotide exchange factor activity / hippocampal mossy fiber to CA3 synapse / sarcomere / small monomeric GTPase / cell projection / intracellular protein transport / P-body / cellular response to virus / small GTPase binding / autophagy / endocytosis / cytoplasmic stress granule / presynapse / regulation of protein localization / nuclear membrane / perikaryon / lysosome / postsynapse / endosome / neuron projection / postsynaptic density / regulation of autophagy / Golgi membrane / protein domain specific binding / negative regulation of gene expression / lysosomal membrane / focal adhesion / intracellular membrane-bounded organelle / GTPase activity / dendrite / protein kinase binding / chromatin / GTP binding / glutamatergic synapse / magnesium ion binding / protein-containing complex / extracellular space / RNA binding / extracellular exosome / nucleoplasm / nucleus / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.94 Å | |||||||||||||||||||||||||||
Authors | Su, M.-Y. / Hurley, J.H. | |||||||||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Commun / Year: 2021Title: Structural basis for the ARF GAP activity and specificity of the C9orf72 complex. Authors: Ming-Yuan Su / Simon A Fromm / Jonathan Remis / Daniel B Toso / James H Hurley / ![]() Abstract: Mutation of C9ORF72 is the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontal temporal degeneration (FTD), which is attributed to both a gain and loss of function. C9orf72 ...Mutation of C9ORF72 is the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontal temporal degeneration (FTD), which is attributed to both a gain and loss of function. C9orf72 forms a complex with SMCR8 and WDR41, which was reported to have GTPase activating protein activity toward ARF proteins, RAB8A, and RAB11A. We determined the cryo-EM structure of ARF1-GDP-BeF bound to C9orf72:SMCR8:WDR41. The SMCR8 and C9orf72 domains form the binding pocket for ARF1. One face of the C9orf72 domain holds ARF1 in place, while the SMCR8 positions the catalytic finger Arg147 in the ARF1 active site. Mutations in interfacial residues of ARF1 and C9orf72 reduced or eliminated GAP activity. RAB8A GAP required ~10-fold higher concentrations of the C9orf72 complex than for ARF1. These data support a specific function for the C9orf72 complex as an ARF GAP. The structure also provides a model for the active forms of the longin domain GAPs of FLCN and NPRL2 that regulate the Rag GTPases of the mTORC1 pathway. | |||||||||||||||||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7mge.cif.gz | 260 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7mge.ent.gz | 185.4 KB | Display | PDB format |
| PDBx/mmJSON format | 7mge.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7mge_validation.pdf.gz | 804.8 KB | Display | wwPDB validaton report |
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| Full document | 7mge_full_validation.pdf.gz | 821.9 KB | Display | |
| Data in XML | 7mge_validation.xml.gz | 40.1 KB | Display | |
| Data in CIF | 7mge_validation.cif.gz | 62.5 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/mg/7mge ftp://data.pdbj.org/pub/pdb/validation_reports/mg/7mge | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 23827MC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 2 types, 2 molecules AE
| #1: Protein | Mass: 51783.805 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: WDR41, MSTP048 / Cell line (production host): HEK 293 GnTi / Production host: Homo sapiens (human) / References: UniProt: Q9HAD4 |
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| #4: Protein | Mass: 18994.572 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ARF1 / Cell line (production host): HEK 293 GnTi / Production host: Homo sapiens (human) / References: UniProt: P84077 |
-Guanine nucleotide exchange ... , 2 types, 2 molecules BC
| #2: Protein | Mass: 105149.094 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SMCR8 / Cell line (production host): HEK 293 GnTi / Production host: Homo sapiens (human) / References: UniProt: Q8TEV9 |
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| #3: Protein | Mass: 54391.477 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: C9orf72 / Cell line (production host): HEK 293 GnTi / Production host: Homo sapiens (human) / References: UniProt: Q96LT7 |
-Non-polymers , 3 types, 3 molecules 




| #5: Chemical | ChemComp-GDP / |
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| #6: Chemical | ChemComp-BEF / |
| #7: Chemical | ChemComp-MG / |
-Details
| Has ligand of interest | N |
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| Has protein modification | N |
-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: Complex of C9orf72:SMCR8:WDR41 with ARF1 / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT |
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| Molecular weight | Units: MEGADALTONS / Experimental value: YES |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 |
| Specimen | Conc.: 0.16 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: concentration range of 0.16-0.2 mg/ml |
| Specimen support | Grid mesh size: 300 divisions/in. / Grid type: C-flat-1.2/1.3 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: BRIGHT FIELD |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.19_4092: / Classification: refinement | ||||||||||||||||||||||||
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| EM software |
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| CTF correction | Type: NONE | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.94 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 796219 / Symmetry type: POINT | ||||||||||||||||||||||||
| Atomic model building | Protocol: RIGID BODY FIT | ||||||||||||||||||||||||
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About Yorodumi




Homo sapiens (human)
United States, 1items
Citation

UCSF Chimera







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