+
Open data
-
Basic information
Entry | Database: EMDB / ID: EMD-10423 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | Structure of the dArc1 capsid | ||||||||||||
![]() | dArc1 Capsid | ||||||||||||
![]() |
| ||||||||||||
Function / homology | ![]() postsynapse of neuromuscular junction / muscle system process / behavioral response to starvation / virus-like capsid / vesicle-mediated intercellular transport / regulation of neuronal synaptic plasticity / mRNA transport / sarcomere / extracellular vesicle / mRNA binding ...postsynapse of neuromuscular junction / muscle system process / behavioral response to starvation / virus-like capsid / vesicle-mediated intercellular transport / regulation of neuronal synaptic plasticity / mRNA transport / sarcomere / extracellular vesicle / mRNA binding / synapse / structural molecule activity / identical protein binding / membrane Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.5 Å | ||||||||||||
![]() | Erlendsson S / Morado DR / Shepherd JD / Briggs JAG | ||||||||||||
Funding support | ![]() ![]() ![]()
| ||||||||||||
![]() | ![]() Title: Structures of virus-like capsids formed by the Drosophila neuronal Arc proteins. Authors: Simon Erlendsson / Dustin R Morado / Harrison B Cullen / Cedric Feschotte / Jason D Shepherd / John A G Briggs / ![]() ![]() Abstract: Arc, a neuronal gene that is critical for synaptic plasticity, originated through the domestication of retrotransposon Gag genes and mediates intercellular messenger RNA transfer. We report high- ...Arc, a neuronal gene that is critical for synaptic plasticity, originated through the domestication of retrotransposon Gag genes and mediates intercellular messenger RNA transfer. We report high-resolution structures of retrovirus-like capsids formed by Drosophila dArc1 and dArc2 that have surface spikes and putative internal RNA-binding domains. These data demonstrate that virus-like capsid-forming properties of Arc are evolutionarily conserved and provide a structural basis for understanding their function in intercellular communication. | ||||||||||||
History |
|
-
Structure visualization
Movie |
![]() |
---|---|
Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
-
Downloads & links
-EMDB archive
Map data | ![]() | 340.1 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 17.5 KB 17.5 KB | Display Display | ![]() |
Images | ![]() | 163.2 KB | ||
Others | ![]() | 404.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 345.7 KB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 345.3 KB | Display | |
Data in XML | ![]() | 7.9 KB | Display | |
Data in CIF | ![]() | 9.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6tapMC ![]() 6taqC ![]() 6tarC ![]() 6tasC ![]() 6tatC ![]() 6tauC M: atomic model generated by this map C: citing same article ( |
---|---|
Similar structure data |
-
Links
EMDB pages | ![]() ![]() |
---|
-
Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | dArc1 Capsid | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.211 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-Additional map: dArc1 Capsid unsharpened
File | emd_10423_additional.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | dArc1 Capsid unsharpened | ||||||||||||
Projections & Slices |
| ||||||||||||
Density Histograms |
-
Sample components
-Entire : dArc1 Capsids
Entire | Name: dArc1 Capsids |
---|---|
Components |
|
-Supramolecule #1: dArc1 Capsids
Supramolecule | Name: dArc1 Capsids / type: cell / ID: 1 / Parent: 0 / Macromolecule list: #1 |
---|---|
Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Activity-regulated cytoskeleton associated protein 1
Macromolecule | Name: Activity-regulated cytoskeleton associated protein 1 / type: protein_or_peptide / ID: 1 / Number of copies: 5 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 28.921201 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MAQLTQMTNE QLRELIEAVR AAAVGAAGSA AAAGGADASR GKGNFSACTH SFGGTRDHDV VEEFIGNIET YKDVEGISDE NALKGISLL FYGMASTWWQ GVRKEATTWK EAIALIREHF SPTKPAYQIY MEFFQNKQDD HDPIDTFVIQ KRALLAQLPS G RHDEETEL ...String: MAQLTQMTNE QLRELIEAVR AAAVGAAGSA AAAGGADASR GKGNFSACTH SFGGTRDHDV VEEFIGNIET YKDVEGISDE NALKGISLL FYGMASTWWQ GVRKEATTWK EAIALIREHF SPTKPAYQIY MEFFQNKQDD HDPIDTFVIQ KRALLAQLPS G RHDEETEL DLLFGLLNIK YRKHISRHSV HTFKDLLEQG RIIEHNNQED EEQLATAKNT RGSKRTTRCT YCSFRGHTFD NC RKRQKDR QEEQHEE |
-Macromolecule #2: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 2 / Number of copies: 1 / Formula: ZN |
---|---|
Molecular weight | Theoretical: 65.409 Da |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
![]() | single particle reconstruction |
Aggregation state | particle |
-
Sample preparation
Concentration | 0.5 mg/mL | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Buffer | pH: 8 Component:
| |||||||||||||||
Grid | Model: Homemade / Material: COPPER / Mesh: 300 / Support film - #0 - Film type ID: 1 / Support film - #0 - Material: CARBON / Support film - #0 - topology: LACEY / Support film - #1 - Film type ID: 2 / Support film - #1 - Material: CARBON / Support film - #1 - topology: CONTINUOUS / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.039 kPa / Details: 25 mA | |||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 278 K / Instrument: FEI VITROBOT MARK IV | |||||||||||||||
Details | dArc1 capsids are prepared from purified protein. |
-
Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Specialist optics | Energy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 4096 pixel / Digitization - Dimensions - Height: 4096 pixel / Digitization - Frames/image: 1-75 / Average electron dose: 35.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 4.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 105000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |