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Structural basis for dimerization quality control

Journal Article · · Nature (London)
 [1];  [2];  [3];  [2];  [2];  [1];  [4];  [4];  [5]
  1. Univ. of California, Berkeley, CA (United States)
  2. Univ. of California, Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Howard Hughes Medical Inst.
  3. Univ. of California, Berkeley, CA (United States). California Inst. for Quantitative Biosciences (QB3); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Univ. of California, Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Howard Hughes Medical Inst.; Univ. of California, Berkeley, CA (United States). California Inst. for Quantitative Biosciences (QB3); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Univ. of California, Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Howard Hughes Medical Inst.; Univ. of California, Berkeley, CA (United States). California Inst. for Quantitative Biosciences (QB3)
Most quality control pathways target misfolded proteins to prevent toxic aggregation and neurodegeneration1. Dimerization quality control further improves proteostasis by eliminating complexes of aberrant composition2, but how it detects incorrect subunits remains unknown. Here we provide structural insight into target selection by SCF-FBXL17, a dimerization-quality-control E3 ligase that ubiquitylates and helps to degrade inactive heterodimers of BTB proteins while sparing functional homodimers. We find that SCF-FBXL17 disrupts aberrant BTB dimers that fail to stabilize an intermolecular β-sheet around a highly divergent β-strand of the BTB domain. Furthermore, complex dissociation allows SCF-FBXL17 to wrap around a single BTB domain, resulting in robust ubiquitylation. SCF-FBXL17 therefore probes both shape and complementarity of BTB domains, a mechanism that is well suited to establish quality control of complex composition for recurrent interaction modules.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
National Institutes of Health (NIH), National Institute of General Medical Sciences (NIGMS); USDOE; University of California
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1838323
Journal Information:
Nature (London), Journal Name: Nature (London) Journal Issue: 7829 Vol. 586; ISSN 0028-0836
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (48)

UCSF Chimera?A visualization system for exploratory research and analysis journal January 2004
Structural Insights into NEDD8 Activation of Cullin-RING Ligases: Conformational Control of Conjugation journal September 2008
Cand1 Promotes Assembly of New SCF Complexes through Dynamic Exchange of F Box Proteins journal March 2013
Regulation of the CUL3 Ubiquitin Ligase by a Calcium-Dependent Co-adaptor journal October 2016
Composition and Regulation of the Cellular Repertoire of SCF Ubiquitin Ligases journal November 2017
A Cul3-Based E3 Ligase Removes Aurora B from Mitotic Chromosomes, Regulating Mitotic Progression and Completion of Cytokinesis in Human Cells journal June 2007
Optimal Determination of Particle Orientation, Absolute Hand, and Contrast Loss in Single-particle Electron Cryomicroscopy journal October 2003
Automated electron microscope tomography using robust prediction of specimen movements journal October 2005
CTFFIND4: Fast and accurate defocus estimation from electron micrographs journal November 2015
Gctf: Real-time CTF determination and correction journal January 2016
Focus: The interface between data collection and data processing in cryo-EM journal May 2017
Structure of a BCOR Corepressor Peptide in Complex with the BCL6 BTB Domain Dimer journal February 2008
Structures of SPOP-Substrate Complexes: Insights into Molecular Architectures of BTB-Cul3 Ubiquitin Ligases journal October 2009
Parallel SCF Adaptor Capture Proteomics Reveals a Role for SCFFBXL17 in NRF2 Activation via BACH1 Repressor Turnover journal October 2013
Cand1-Mediated Adaptive Exchange Mechanism Enables Variation in F-Box Protein Expression journal March 2018
Modular engineering of cellular signaling proteins and networks journal August 2016
An Improved Cryogen for Plunge Freezing journal September 2008
Aromatic Side Chain Water-to-Lipid Transfer Free Energies Show a Depth Dependence across the Membrane Normal journal June 2016
Insights into SCF ubiquitin ligases from the structure of the Skp1–Skp2 complex journal November 2000
Structure of the Cul1–Rbx1–Skp1–F boxSkp2 SCF ubiquitin ligase complex journal April 2002
FBXO11 targets BCL6 for degradation and is inactivated in diffuse large B-cell lymphomas journal January 2012
Ubiquitin-dependent regulation of COPII coat size and function journal February 2012
SCFFBXL3 ubiquitin ligase targets cryptochromes at their cofactor pocket journal March 2013
Cell-fate determination by ubiquitin-dependent regulation of translation journal September 2015
CSN- and CAND1-dependent remodelling of the budding yeast SCF complex journal March 2013
KLHL3 mutations cause familial hyperkalemic hypertension by impairing ion transport in the distal nephron journal March 2012
Keap1-null mutation leads to postnatal lethality due to constitutive Nrf2 activation journal September 2003
Prevention of overfitting in cryo-EM structure determination journal July 2012
Improved low-resolution crystallographic refinement with Phenix and Rosetta journal September 2013
cryoSPARC: algorithms for rapid unsupervised cryo-EM structure determination journal February 2017
MotionCor2: anisotropic correction of beam-induced motion for improved cryo-electron microscopy journal February 2017
Software tools for automated transmission electron microscopy journal May 2019
The Cul3–KLHL21 E3 ubiquitin ligase targets Aurora B to midzone microtubules in anaphase and is required for cytokinesis journal December 2009
XDS journal January 2010
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Features and development of Coot journal March 2010
Overview of the CCP 4 suite and current developments journal March 2011
How good are my data and what is the resolution? journal June 2013
Real-space refinement in PHENIX for cryo-EM and crystallography journal May 2018
In vivo aspects of protein folding and quality control journal June 2016
Dimerization quality control ensures neuronal development and survival journal September 2018
BTB Protein Keap1 Targets Antioxidant Transcription Factor Nrf2 for Ubiquitination by the Cullin 3-Roc1 Ligase journal January 2005
The KEAP1-NRF2 System: a Thiol-Based Sensor-Effector Apparatus for Maintaining Redox Homeostasis journal July 2018
Crystal Structure of KLHL3 in Complex with Cullin3 journal April 2013
Structure of the BTB Domain of Keap1 and Its Interaction with the Triterpenoid Antagonist CDDO journal June 2014
Collaboration gets the most out of software journal September 2013
Molecular mechanism of activation-triggered subunit exchange in Ca2+/calmodulin-dependent protein kinase II journal March 2016
New tools for automated high-resolution cryo-EM structure determination in RELION-3 journal November 2018

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