Download MendeleyStructure of the endosomal Commander complex linked to Ritscher-Schinzel syndrome.
Healy, M.D., McNally, K.E., Butkovic, R., Chilton, M., Kato, K., Sacharz, J., McConville, C., Moody, E.R.R., Shaw, S., Planelles-Herrero, V.J., Yadav, S.K.N., Ross, J., Borucu, U., Palmer, C.S., Chen, K.E., Croll, T.I., Hall, R.J., Caruana, N.J., Ghai, R., Nguyen, T.H.D., Heesom, K.J., Saitoh, S., Berger, I., Schaffitzel, C., Williams, T.A., Stroud, D.A., Derivery, E., Collins, B.M., Cullen, P.J.(2023) Cell 186: 2219-2237.e29
- PubMed: 37172566
- DOI: https://doi.org/10.1016/j.cell.2023.04.003
- Primary Citation of Related Structures:
8ESD, 8ESE, 8F2R, 8F2U - PubMed Abstract:
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.
Organizational Affiliation:
Centre for Cell Biology of Chronic Disease, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia.
