COMMD1 is linked to the WASH complex and regulates endosomal trafficking of the copper transporter ATP7A

Christine A. Phillips-Krawczak, Amika Singla, Petro Starokadomskyy, Zhihui Deng, Douglas G. Osborne, Haiying Li, Christopher J. Dick, Timothy S. Gomez, Megan Koenecke, Jin San Zhang, Haiming Dai, Luis F. Sifuentes-Dominguez, Linda N. Geng, Scott H. Kaufmann, Marco Y. Hein, Mathew Wallis, Julie McGaughran, Jozef Gecz, Bart Van De Sluis, Daniel D. BilladeauEzra Burstein

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

COMMD1 deficiency results in defective copper homeostasis, but the mechanism for this has remained elusive. Here we report that COMMD1 is directly linked to early endosomes through its interaction with a protein complex containing CCDC22, CCDC93, and C16orf62. This COMMD/CCDC22/CCDC93 (CCC) complex interacts with the multisubunit WASH complex, an evolutionarily conserved system, which is required for endosomal deposition of F-actin and cargo trafficking in conjunction with the retromer. Interactions between the WASH complex subunit FAM21, and the carboxyl-terminal ends of CCDC22 and CCDC93 are responsible for CCC complex recruitment to endosomes. We show that depletion of CCC complex components leads to lack of copper-dependent movement of the copper transporter ATP7A from endosomes, resulting in intracellular copper accumulation and modest alterations in copper homeostasis in humans with CCDC22 mutations. This work provides a mechanistic explanation for the role of COMMD1 in copper homeostasis and uncovers additional genes involved in the regulation of copper transporter recycling.

Original languageEnglish (US)
Pages (from-to)91-103
Number of pages13
JournalMolecular Biology of the Cell
Volume26
Issue number1
DOIs
StatePublished - Jan 1 2015

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Copper
Endosomes
Homeostasis
Recycling
Actins
Mutation
Genes
Proteins

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology

Cite this

COMMD1 is linked to the WASH complex and regulates endosomal trafficking of the copper transporter ATP7A. / Phillips-Krawczak, Christine A.; Singla, Amika; Starokadomskyy, Petro; Deng, Zhihui; Osborne, Douglas G.; Li, Haiying; Dick, Christopher J.; Gomez, Timothy S.; Koenecke, Megan; Zhang, Jin San; Dai, Haiming; Sifuentes-Dominguez, Luis F.; Geng, Linda N.; Kaufmann, Scott H.; Hein, Marco Y.; Wallis, Mathew; McGaughran, Julie; Gecz, Jozef; Van De Sluis, Bart; Billadeau, Daniel D.; Burstein, Ezra.

In: Molecular Biology of the Cell, Vol. 26, No. 1, 01.01.2015, p. 91-103.

Research output: Contribution to journalArticle

Phillips-Krawczak, CA, Singla, A, Starokadomskyy, P, Deng, Z, Osborne, DG, Li, H, Dick, CJ, Gomez, TS, Koenecke, M, Zhang, JS, Dai, H, Sifuentes-Dominguez, LF, Geng, LN, Kaufmann, SH, Hein, MY, Wallis, M, McGaughran, J, Gecz, J, Van De Sluis, B, Billadeau, DD & Burstein, E 2015, 'COMMD1 is linked to the WASH complex and regulates endosomal trafficking of the copper transporter ATP7A', Molecular Biology of the Cell, vol. 26, no. 1, pp. 91-103. https://doi.org/10.1091/mbc.E14-06-1073
Phillips-Krawczak, Christine A. ; Singla, Amika ; Starokadomskyy, Petro ; Deng, Zhihui ; Osborne, Douglas G. ; Li, Haiying ; Dick, Christopher J. ; Gomez, Timothy S. ; Koenecke, Megan ; Zhang, Jin San ; Dai, Haiming ; Sifuentes-Dominguez, Luis F. ; Geng, Linda N. ; Kaufmann, Scott H. ; Hein, Marco Y. ; Wallis, Mathew ; McGaughran, Julie ; Gecz, Jozef ; Van De Sluis, Bart ; Billadeau, Daniel D. ; Burstein, Ezra. / COMMD1 is linked to the WASH complex and regulates endosomal trafficking of the copper transporter ATP7A. In: Molecular Biology of the Cell. 2015 ; Vol. 26, No. 1. pp. 91-103.
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