8F2U image
Entry Detail
PDB ID:
8F2U
EMDB ID:
Keywords:
Title:
Human CCC complex
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2022-11-08
Release Date:
2023-05-24
Method Details:
Experimental Method:
Resolution:
3.53 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 1
Chain IDs:A
Chain Length:190
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 2
Chain IDs:B
Chain Length:199
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 3
Chain IDs:C
Chain Length:195
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 4
Chain IDs:D
Chain Length:199
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 5
Chain IDs:E
Chain Length:260
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 6
Chain IDs:F
Chain Length:85
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 7
Chain IDs:G
Chain Length:200
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 8
Chain IDs:H
Chain Length:183
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 9
Chain IDs:I
Chain Length:198
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:COMM domain-containing protein 10
Chain IDs:J
Chain Length:212
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:Coiled-coil domain-containing protein 93
Chain IDs:K (auth: N)
Chain Length:631
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:Coiled-coil domain-containing protein 22
Chain IDs:L (auth: T)
Chain Length:627
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation

Abstact

The Commander complex is required for endosomal recycling of diverse transmembrane cargos and is mutated in Ritscher-Schinzel syndrome. It comprises two sub-assemblies: Retriever composed of VPS35L, VPS26C, and VPS29; and the CCC complex which contains twelve subunits: COMMD1-COMMD10 and the coiled-coil domain-containing (CCDC) proteins CCDC22 and CCDC93. Combining X-ray crystallography, electron cryomicroscopy, and in silico predictions, we have assembled a complete structural model of Commander. Retriever is distantly related to the endosomal Retromer complex but has unique features preventing the shared VPS29 subunit from interacting with Retromer-associated factors. The COMMD proteins form a distinctive hetero-decameric ring stabilized by extensive interactions with CCDC22 and CCDC93. These adopt a coiled-coil structure that connects the CCC and Retriever assemblies and recruits a 16th subunit, DENND10, to form the complete Commander complex. The structure allows mapping of disease-causing mutations and reveals the molecular features required for the function of this evolutionarily conserved trafficking machinery.

Legend

Protein

Chemical

Disease

Primary Citation of related structures