1
|
Yeshaw WM, van der Zwaag M, Pinto F, Lahaye LL, Faber AI, Gómez-Sánchez R, Dolga AM, Poland C, Monaco AP, van IJzendoorn SC, Grzeschik NA, Velayos-Baeza A, Sibon OC. Human VPS13A is associated with multiple organelles and influences mitochondrial morphology and lipid droplet motility. eLife 2019; 8:43561. [PMID: 30741634 PMCID: PMC6389287 DOI: 10.7554/elife.43561] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 02/10/2019] [Indexed: 02/03/2023] Open
Abstract
The VPS13A gene is associated with the neurodegenerative disorder Chorea Acanthocytosis. It is unknown what the consequences are of impaired function of VPS13A at the subcellular level. We demonstrate that VPS13A is a peripheral membrane protein, associated with mitochondria, the endoplasmic reticulum and lipid droplets. VPS13A is localized at sites where the endoplasmic reticulum and mitochondria are in close contact. VPS13A interacts with the ER residing protein VAP-A via its FFAT domain. Interaction with mitochondria is mediated via its C-terminal domain. In VPS13A-depleted cells, ER-mitochondria contact sites are decreased, mitochondria are fragmented and mitophagy is decreased. VPS13A also localizes to lipid droplets and affects lipid droplet motility. In VPS13A-depleted mammalian cells lipid droplet numbers are increased. Our data, together with recently published data from others, indicate that VPS13A is required for establishing membrane contact sites between various organelles to enable lipid transfer required for mitochondria and lipid droplet related processes.
Collapse
Affiliation(s)
- Wondwossen M Yeshaw
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marianne van der Zwaag
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Francesco Pinto
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Liza L Lahaye
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Anita Ie Faber
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Rubén Gómez-Sánchez
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Amalia M Dolga
- Department of Molecular Pharmacology, Groningen Research Institute of Pharmacy (GRIP), Faculty of Science and Engineering, University of Groningen, Groningen, The Netherlands
| | - Conor Poland
- Wellcome Trust Centre for Human Genetics, Oxford, United Kingdom
| | - Anthony P Monaco
- Wellcome Trust Centre for Human Genetics, Oxford, United Kingdom.,Office of the President, Tufts University, Medford, United States
| | - Sven Cd van IJzendoorn
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Nicola A Grzeschik
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | | | - Ody Cm Sibon
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| |
Collapse
|
7
|
Palmer CG, Poland C, Reed T, Kojetin J. Partial trisomy 11,46,XX,-3,-20, + der3, + der20,t(3:11:20), resulting from a complex maternal rearrangement of chromosomes 3, 11, 20. Hum Genet 1976; 31:219-25. [PMID: 1248831 DOI: 10.1007/bf00296149] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Clinical findings of partial trisomy 11p are described in a patient bearing t(3;11;20) (p13;p11;q13). The translocation was present in balanced form in her mother (46, XX)t(3;11;20) (p13;p11;q13).
Collapse
|