+Open data
-Basic information
Entry | Database: PDB / ID: 8sym | |||||||||
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Title | Human VPS29/VPS35L Complex (Locally refined map) | |||||||||
Components |
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Keywords | PROTEIN TRANSPORT / COMMD / Retriever / Commander / CCC | |||||||||
Function / homology | Function and homology information WNT ligand biogenesis and trafficking / retromer, cargo-selective complex / retromer complex / Golgi to plasma membrane transport / endocytic recycling / retrograde transport, endosome to Golgi / ficolin-1-rich granule membrane / intracellular protein transport / protein transport / late endosome ...WNT ligand biogenesis and trafficking / retromer, cargo-selective complex / retromer complex / Golgi to plasma membrane transport / endocytic recycling / retrograde transport, endosome to Golgi / ficolin-1-rich granule membrane / intracellular protein transport / protein transport / late endosome / early endosome / endosome membrane / endosome / intracellular membrane-bounded organelle / Neutrophil degranulation / metal ion binding / plasma membrane / cytosol Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
Authors | Chen, Z. / Chen, B. / Burstein, E. / Han, Y. | |||||||||
Funding support | United States, 2items
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Citation | Journal: Nat Struct Mol Biol / Year: 2024 Title: Structural organization of the retriever-CCC endosomal recycling complex. Authors: Daniel J Boesch / Amika Singla / Yan Han / Daniel A Kramer / Qi Liu / Kohei Suzuki / Puneet Juneja / Xuefeng Zhao / Xin Long / Michael J Medlyn / Daniel D Billadeau / Zhe Chen / Baoyu Chen / Ezra Burstein / Abstract: The recycling of membrane proteins from endosomes to the cell surface is vital for cell signaling and survival. Retriever, a trimeric complex of vacuolar protein-sorting-associated protein (VPS)35L, ...The recycling of membrane proteins from endosomes to the cell surface is vital for cell signaling and survival. Retriever, a trimeric complex of vacuolar protein-sorting-associated protein (VPS)35L, VPS26C and VPS29, together with the CCC complex comprising coiled-coil domain-containing (CCDC)22, CCDC93 and copper metabolism domain-containing (COMMD) proteins, plays a crucial role in this process. The precise mechanisms underlying retriever assembly and its interaction with CCC have remained elusive. Here, we present a high-resolution structure of retriever in humans determined using cryogenic electron microscopy. The structure reveals a unique assembly mechanism, distinguishing it from its remotely related paralog retromer. By combining AlphaFold predictions and biochemical, cellular and proteomic analyses, we further elucidate the structural organization of the entire retriever-CCC complex across evolution and uncover how cancer-associated mutations in humans disrupt complex formation and impair membrane protein homeostasis. These findings provide a fundamental framework for understanding the biological and pathological implications associated with retriever-CCC-mediated endosomal recycling. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8sym.cif.gz | 135.1 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8sym.ent.gz | 96.4 KB | Display | PDB format |
PDBx/mmJSON format | 8sym.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8sym_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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Full document | 8sym_full_validation.pdf.gz | 1.3 MB | Display | |
Data in XML | 8sym_validation.xml.gz | 33.8 KB | Display | |
Data in CIF | 8sym_validation.cif.gz | 47.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/sy/8sym ftp://data.pdbj.org/pub/pdb/validation_reports/sy/8sym | HTTPS FTP |
-Related structure data
Related structure data | 40884MC 8synC 8syoC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 109700.453 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: VPS35L, C16orf62, 101F10.2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q7Z3J2 |
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#2: Protein | Mass: 23038.320 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: VPS29, DC15, DC7, MDS007 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q9UBQ0 |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Complex of full-length VPS29 with VPS35L / 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: Spodoptera frugiperda (fall armyworm) | ||||||||||||||||||||||||||||||
Buffer solution | pH: 7 Details: 10 mM HEPES (pH 7.0), 150 mM NaCl, 2 mM MgCl2, 2 mM DTT, and 5% (v/v) glycerol | ||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.25 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 278.15 K |
-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: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 2400 nm / Nominal defocus min: 1200 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 5 sec. / Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 3594 |
EM imaging optics | Energyfilter name: GIF Quantum ER / Energyfilter slit width: 20 eV |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 426624 Details: this is a focused refinement/local refinement from a partially refined particle stack. | ||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 83654 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | B value: 107.9 / Space: REAL | ||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Source name: AlphaFold / Type: in silico model | ||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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