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- PDB-7blq: Vps26 dimer region of the fungal membrane-assembled retromer:Grd1... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7blq | ||||||||||||||||||
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Title | Vps26 dimer region of the fungal membrane-assembled retromer:Grd19 complex. | ||||||||||||||||||
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![]() | ENDOCYTOSIS / endosomes / coat proteins / membrane trafficking / cargo-sorting | ||||||||||||||||||
Function / homology | ![]() vanadium ion transmembrane transporter activity / vanadium ion transport / paraferritin complex / Defective SLC11A2 causes hypochromic microcytic anemia, with iron overload 1 (AHMIO1) / lead ion transmembrane transporter activity / lead ion transport / nickel cation transmembrane transporter activity / transition metal ion transmembrane transporter activity / late endosome to Golgi transport / solute:proton symporter activity ...vanadium ion transmembrane transporter activity / vanadium ion transport / paraferritin complex / Defective SLC11A2 causes hypochromic microcytic anemia, with iron overload 1 (AHMIO1) / lead ion transmembrane transporter activity / lead ion transport / nickel cation transmembrane transporter activity / transition metal ion transmembrane transporter activity / late endosome to Golgi transport / solute:proton symporter activity / inorganic cation transmembrane transporter activity / cadmium ion transmembrane transport / Metal ion SLC transporters / manganese ion transport / nickel cation transport / detection of oxygen / retromer, cargo-selective complex / cadmium ion transmembrane transporter activity / manganese ion transmembrane transporter activity / iron import into cell / copper ion transmembrane transporter activity / cobalt ion transport / cobalt ion transmembrane transporter activity / retromer complex binding / ferrous iron transmembrane transporter activity / iron ion transmembrane transporter activity / retromer complex / zinc ion transmembrane transporter activity / iron ion transmembrane transport / copper ion transport / basal part of cell / endocytic recycling / phosphatidylinositol-3-phosphate binding / vacuole / retrograde transport, endosome to Golgi / response to iron ion / heme biosynthetic process / dendrite morphogenesis / cadmium ion binding / erythrocyte development / intracellular protein transport / trans-Golgi network / Iron uptake and transport / brush border membrane / recycling endosome / multicellular organismal-level iron ion homeostasis / recycling endosome membrane / late endosome membrane / apical part of cell / late endosome / protein transport / extracellular vesicle / iron ion transport / cellular response to oxidative stress / early endosome membrane / cytoplasmic vesicle / mitochondrial outer membrane / intracellular iron ion homeostasis / learning or memory / early endosome / response to hypoxia / lysosome / endosome membrane / apical plasma membrane / Golgi membrane / lysosomal membrane / perinuclear region of cytoplasm / cell surface / Golgi apparatus / mitochondrion / nucleus / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||||||||||||||
Biological species | ![]() ![]() | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / subtomogram averaging / cryo EM / Resolution: 9.2 Å | ||||||||||||||||||
![]() | Leneva, N. / Kovtun, O. / Morado, D.R. / Briggs, J.A.G. / Owen, D.J. | ||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Architecture and mechanism of metazoan retromer:SNX3 tubular coat assembly. Authors: Natalya Leneva / Oleksiy Kovtun / Dustin R Morado / John A G Briggs / David J Owen / ![]() Abstract: Retromer is a master regulator of cargo retrieval from endosomes, which is critical for many cellular processes including signaling, immunity, neuroprotection, and virus infection. The retromer core ...Retromer is a master regulator of cargo retrieval from endosomes, which is critical for many cellular processes including signaling, immunity, neuroprotection, and virus infection. The retromer core (VPS26/VPS29/VPS35) is present on cargo-transporting, tubular carriers along with a range of sorting nexins. Here, we elucidate the structural basis of membrane tubulation and coupled cargo recognition by metazoan and fungal retromer coats assembled with the non-Bin1/Amphiphysin/Rvs (BAR) sorting nexin SNX3 using cryo-electron tomography. The retromer core retains its arched, scaffolding structure but changes its mode of membrane recruitment when assembled with different SNX adaptors, allowing cargo recognition at subunit interfaces. Thus, membrane bending and cargo incorporation can be modulated to allow retromer to traffic cargoes along different cellular transport routes. | ||||||||||||||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 264.9 KB | Display | ![]() |
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PDB format | ![]() | 213.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 12224MC ![]() 7blnC ![]() 7bloC ![]() 7blpC ![]() 7blrC M: map data used to model this data C: citing same article ( |
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Similar structure data | |
EM raw data | ![]() Data size: 347.7 Data #1: Raw image frames for the fungal retromer:Grd19 coat assembled on the Kex2 cargo-containing membranes [micrographs - multiframe] Data #2: Corrected, aligned and order-sorted tilt series for the membrane-reconstituted fungal retromer:Grd19 complex in the presence of cargo-signal containing C-portion of the Kex2 cargo. [tilt series] Data #3: Corrected, aligned, dose-filtered and order-sorted tilt series for the membrane-reconstituted fungal retromer:Grd19 complex in the presence of cargo-signal containing C-portion of the Kex2 cargo. [tilt series]) |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 34014.195 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Strain: DSM 1495 / CBS 144.50 / IMI 039719 / Gene: CTHT_0035730 / Production host: ![]() ![]() #2: Protein | Mass: 13525.490 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Strain: DSM 1495 / CBS 144.50 / IMI 039719 / Gene: CTHT_0011560 / Production host: ![]() ![]() #3: Protein | Mass: 34308.449 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Strain: DSM 1495 / CBS 144.50 / IMI 039719 / Gene: CTHT_0009750 / Production host: ![]() ![]() #4: Protein/peptide | Mass: 1221.422 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Production host: ![]() ![]() #5: Chemical | Has ligand of interest | Y | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: 3D ARRAY / 3D reconstruction method: subtomogram averaging |
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Sample preparation
Component | Name: Vps26 dimer region of the fungal membrane-assembled retromer:Grd19 cargo-containing complex Type: COMPLEX Details: fungal retromer:Grd19 complex assembled on liposomes containing Kex2 cargo peptide. Entity ID: #1-#4 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | 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: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 3 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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Symmetry | Point symmetry: C1 (asymmetric) |
3D reconstruction | Resolution: 9.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 49886 / Symmetry type: POINT |
EM volume selection | Num. of tomograms: 82 / Num. of volumes extracted: 449807 |