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- PDB-8rmn: Cryo-EM structure of a dimer of decameric human CALHM4 in complex... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8rmn | ||||||
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Title | Cryo-EM structure of a dimer of decameric human CALHM4 in complex with synthetic nanobody SbC4 | ||||||
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![]() | MEMBRANE PROTEIN / ion channel / large pore channels / sybody / CALHM | ||||||
Function / homology | Calcium homeostasis modulator family / Calcium homeostasis modulator / monoatomic cation channel activity / membrane / Calcium homeostasis modulator protein 4![]() | ||||||
Biological species | ![]() synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å | ||||||
![]() | Peter, M. / Drozdzyk, K. / Dutzler, R. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural features of heteromeric channels composed of CALHM2 and CALHM4 paralogs Authors: Drozdzyk, K. / Peter, M. / Dutzler, R. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.2 MB | Display | ![]() |
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PDB format | ![]() | 999.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.8 MB | Display | ![]() |
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Full document | ![]() | 1.8 MB | Display | |
Data in XML | ![]() | 181.3 KB | Display | |
Data in CIF | ![]() | 256 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 19365MC ![]() 8rmkC ![]() 8rmlC ![]() 8rmmC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 35981.656 Da / Num. of mol.: 20 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Antibody | Mass: 15613.268 Da / Num. of mol.: 20 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: ![]() ![]() |
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-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 CALHM4 channel with synthetic nanobody SbC4 Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: 1.03 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.6 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE-PROPANE |
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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 / Nominal defocus max: 2400 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 70 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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Symmetry | Point symmetry: D10 (2x10 fold dihedral) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 52248 / Symmetry type: POINT | ||||||||||||||||||||||||
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