Journal
CELL SYSTEMS
Volume 4, Issue 5, Pages 483-494Publisher
CELL PRESS
DOI: 10.1016/j.cels.2017.04.006
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Funding
- National Institutes of Health [DP1 GM106408, R01 DK110520, R01 HD085901]
- National Science Foundation
- Welch Foundation [F1515]
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Recent mass spectrometry maps of the human interactome independently support the existence of a large multiprotein complex, dubbed Commander.'' Broadly conserved across animals and ubiquitously expressed in nearly every human cell type examined thus far, Commander likely plays a fundamental cellular function, akin to other ubiquitous machines involved in expression, proteostasis, and trafficking. Experiments on individual subunits support roles in endosomal protein sorting, including the trafficking of Notch proteins, copper transporters, and lipoprotein receptors. Commander is critical for vertebrate embryogenesis, and defects in the complex and its interaction partners disrupt craniofacial, brain, and heart development. Here, we review the synergy between large-scale proteomic efforts and focused studies in the discovery of Commander, describe its composition, structure, and function, and discuss how it illustrates the power of systems biology. Based on 3D modeling and biochemical data, we draw strong parallels between Commander and the retromer cargo-recognition complex, laying a foundation for future research into Commander's role in human developmental disorders.
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