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- PDB-8rmm: Structure of heteromeric CALHM2/4 channel in complex with synthet... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8rmm | ||||||
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Title | Structure of heteromeric CALHM2/4 channel in complex with synthetic nanobodies SbC2 and 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 / positive regulation of apoptotic process / membrane / DIUNDECYL PHOSPHATIDYL CHOLINE / Calcium homeostasis modulator protein 4 / Calcium homeostasis modulator protein 2![]() | ||||||
Biological species | ![]() synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.26 Å | ||||||
![]() | 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 | ![]() | 800 KB | Display | ![]() |
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PDB format | ![]() | 658.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.6 MB | Display | ![]() |
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Full document | ![]() | 1.7 MB | Display | |
Data in XML | ![]() | 121.3 KB | Display | |
Data in CIF | ![]() | 182.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 19364MC ![]() 8rmkC ![]() 8rmlC ![]() 8rmnC 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.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Antibody | Mass: 12877.380 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: ![]() ![]() #3: Protein | Mass: 37099.535 Da / Num. of mol.: 8 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #4: Antibody | Mass: 14067.451 Da / Num. of mol.: 7 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: ![]() ![]() #5: Chemical | ChemComp-PLC / Has ligand of interest | Y | |
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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 heteromeric CALHM2/4 channel with synthetic nanobody SbC4 Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT |
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Molecular weight | Value: 0.541 kDa/nm / 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: 60 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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3D reconstruction | Resolution: 3.26 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 93191 / Symmetry type: POINT | ||||||||||||||||||||||||
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