Endosomal PI(3)P regulation by the COMMD/CCDC22/CCDC93 (CCC) complex controls membrane protein recycling

Amika Singla, Alina Fedoseienko, Sai S.P. Giridharan, Brittany L. Overlee, Adam Lopez, Da Jia, Jie Song, Kayci Huff-Hardy, Lois Weisman, Ezra Burstein, Daniel D. Billadeau

Research output: Contribution to journalArticle

Abstract

Protein recycling through the endolysosomal system relies on molecular assemblies that interact with cargo proteins, membranes, and effector molecules. Among them, the COMMD/CCDC22/CCDC93 (CCC) complex plays a critical role in recycling events. While CCC is closely associated with retriever, a cargo recognition complex, its mechanism of action remains unexplained. Herein we show that CCC and retriever are closely linked through sharing a common subunit (VPS35L), yet the integrity of CCC, but not retriever, is required to maintain normal endosomal levels of phosphatidylinositol-3-phosphate (PI(3)P). CCC complex depletion leads to elevated PI(3)P levels, enhanced recruitment and activation of WASH (an actin nucleation promoting factor), excess endosomal F-actin and trapping of internalized receptors. Mechanistically, we find that CCC regulates the phosphorylation and endosomal recruitment of the PI(3)P phosphatase MTMR2. Taken together, we show that the regulation of PI(3)P levels by the CCC complex is critical to protein recycling in the endosomal compartment.

Original languageEnglish (US)
Number of pages1
JournalNature communications
Volume10
Issue number1
DOIs
StatePublished - Sep 19 2019

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Recycling
recycling
phosphates
Membrane Proteins
membranes
proteins
cargo
Actins
effectors
phosphorylation
Phosphorylation
phosphatases
compartments
Phosphoric Monoester Hydrolases
integrity
assemblies
depletion
Proteins
Nucleation
Chemical activation

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Endosomal PI(3)P regulation by the COMMD/CCDC22/CCDC93 (CCC) complex controls membrane protein recycling. / Singla, Amika; Fedoseienko, Alina; Giridharan, Sai S.P.; Overlee, Brittany L.; Lopez, Adam; Jia, Da; Song, Jie; Huff-Hardy, Kayci; Weisman, Lois; Burstein, Ezra; Billadeau, Daniel D.

In: Nature communications, Vol. 10, No. 1, 19.09.2019.

Research output: Contribution to journalArticle

Singla, A, Fedoseienko, A, Giridharan, SSP, Overlee, BL, Lopez, A, Jia, D, Song, J, Huff-Hardy, K, Weisman, L, Burstein, E & Billadeau, DD 2019, 'Endosomal PI(3)P regulation by the COMMD/CCDC22/CCDC93 (CCC) complex controls membrane protein recycling', Nature communications, vol. 10, no. 1. https://doi.org/10.1038/s41467-019-12221-6
Singla, Amika ; Fedoseienko, Alina ; Giridharan, Sai S.P. ; Overlee, Brittany L. ; Lopez, Adam ; Jia, Da ; Song, Jie ; Huff-Hardy, Kayci ; Weisman, Lois ; Burstein, Ezra ; Billadeau, Daniel D. / Endosomal PI(3)P regulation by the COMMD/CCDC22/CCDC93 (CCC) complex controls membrane protein recycling. In: Nature communications. 2019 ; Vol. 10, No. 1.
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