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GID E3 ligase supramolecular chelate assembly configures multipronged ubiquitin targeting of an oligomeric metabolic enzyme

MPS-Authors
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Sherpa,  Dawafuti
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Chrustowicz,  Jakub
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Qiao,  Shuai
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Langlois,  Christine R.
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Hehl,  Laura A.
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Gottemukkala,  Karthik Varma
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Hansen,  Fynn M.
Mann, Matthias / Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Max Planck Society;

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Karayel,  Ozge
Mann, Matthias / Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Max Planck Society;

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von Gronau,  Susanne
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Prabu,  J. Rajan
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Mann,  Matthias
Mann, Matthias / Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Max Planck Society;

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Alpi,  Arno F.
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Schulman,  Brenda A.
Schulman, Brenda / Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Max Planck Society;

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Citation

Sherpa, D., Chrustowicz, J., Qiao, S., Langlois, C. R., Hehl, L. A., Gottemukkala, K. V., et al. (2021). GID E3 ligase supramolecular chelate assembly configures multipronged ubiquitin targeting of an oligomeric metabolic enzyme. Molecular Cell, 81(11), 2445-2459.e13. doi:10.1016/j.molcel.2021.03.025.


Cite as: http://hdl.handle.net/21.11116/0000-0008-C109-4
Abstract
How are E3 ubiquitin ligases configured to match substrate quaternary structures? Here, by studying the yeast GID complex (mutation of which causes deficiency in glucose-induced degradation of gluconeogenic enzymes), we discover supramolecular chelate assembly as an E3 ligase strategy for targeting an oligomeric substrate. Cryoelectron microscopy (cryo-EM) structures show that, to bind the tetrameric substrate fructose-1,6-bisphosphatase (Fbp1), two minimally functional GID E3s assemble into the 20-protein Chelator-GID(SR4), which resembles an organometallic supramolecular chelate. The Chelator-GID(SR4) assembly avidly binds multiple Fbp1 degrons so that multiple Fbp1 protomers are simultaneously ubiquitylated at lysines near the allosteric and substrate binding sites. Importantly, key structural and biochemical features, including capacity for supramolecular assembly, are preserved in the human ortholog, the CTLH E3. Based on our integrative structural, biochemical, and cell biological data, we propose that higher-order E3 ligase assembly generally enables multipronged targeting, capable of simultaneously incapacitating multiple protomers and functionalities of oligomeric substrates.