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Open data
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Basic information
| Entry | Database: PDB / ID: 8fcl | ||||||
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| Title | Cryo-EM structure of p97:UBXD1 closed state | ||||||
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Keywords | CHAPERONE / HYDROLASE / AAA+ | ||||||
| Function / homology | Function and homology information: / flavin adenine dinucleotide catabolic process / VCP-NSFL1C complex / endosome to lysosome transport via multivesicular body sorting pathway / endoplasmic reticulum stress-induced pre-emptive quality control / BAT3 complex binding / cellular response to arsenite ion / protein-DNA covalent cross-linking repair / Derlin-1 retrotranslocation complex / positive regulation of protein K63-linked deubiquitination ...: / flavin adenine dinucleotide catabolic process / VCP-NSFL1C complex / endosome to lysosome transport via multivesicular body sorting pathway / endoplasmic reticulum stress-induced pre-emptive quality control / BAT3 complex binding / cellular response to arsenite ion / protein-DNA covalent cross-linking repair / Derlin-1 retrotranslocation complex / positive regulation of protein K63-linked deubiquitination / cytoplasm protein quality control / positive regulation of oxidative phosphorylation / : / aggresome assembly / deubiquitinase activator activity / ubiquitin-modified protein reader activity / mitotic spindle disassembly / regulation of protein localization to chromatin / VCP-NPL4-UFD1 AAA ATPase complex / cellular response to misfolded protein / negative regulation of protein localization to chromatin / positive regulation of mitochondrial membrane potential / vesicle-fusing ATPase / K48-linked polyubiquitin modification-dependent protein binding / regulation of aerobic respiration / retrograde protein transport, ER to cytosol / stress granule disassembly / ATPase complex / regulation of synapse organization / ubiquitin-specific protease binding / positive regulation of ATP biosynthetic process / MHC class I protein binding / ubiquitin-like protein ligase binding / RHOH GTPase cycle / polyubiquitin modification-dependent protein binding / autophagosome maturation / negative regulation of hippo signaling / endoplasmic reticulum to Golgi vesicle-mediated transport / HSF1 activation / translesion synthesis / interstrand cross-link repair / ATP metabolic process / proteasomal protein catabolic process / endoplasmic reticulum unfolded protein response / Protein methylation / Attachment and Entry / ERAD pathway / lipid droplet / proteasome complex / viral genome replication / Josephin domain DUBs / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / negative regulation of smoothened signaling pathway / macroautophagy / positive regulation of protein-containing complex assembly / Hh mutants are degraded by ERAD / establishment of protein localization / Hedgehog ligand biogenesis / Defective CFTR causes cystic fibrosis / Translesion Synthesis by POLH / positive regulation of non-canonical NF-kappaB signal transduction / ADP binding / ABC-family proteins mediated transport / autophagy / cytoplasmic stress granule / Aggrephagy / positive regulation of protein catabolic process / azurophil granule lumen / KEAP1-NFE2L2 pathway / Ovarian tumor domain proteases / late endosome membrane / positive regulation of canonical Wnt signaling pathway / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / double-strand break repair / E3 ubiquitin ligases ubiquitinate target proteins / site of double-strand break / Neddylation / cellular response to heat / ATPase binding / ubiquitin-dependent protein catabolic process / early endosome membrane / secretory granule lumen / protein phosphatase binding / regulation of apoptotic process / ficolin-1-rich granule lumen / proteasome-mediated ubiquitin-dependent protein catabolic process / Attachment and Entry / endosome / protein ubiquitination / ciliary basal body / protein domain specific binding / lysosomal membrane / DNA repair / intracellular membrane-bounded organelle / DNA damage response / ubiquitin protein ligase binding / lipid binding / centrosome / Neutrophil degranulation / endoplasmic reticulum membrane Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.51 Å | ||||||
Authors | Braxton, J.R. / Tucker, M.R. / Tse, E. / Southworth, D.R. | ||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Struct Mol Biol / Year: 2023Title: The p97/VCP adaptor UBXD1 drives AAA+ remodeling and ring opening through multi-domain tethered interactions. Authors: Julian R Braxton / Chad R Altobelli / Maxwell R Tucker / Eric Tse / Aye C Thwin / Michelle R Arkin / Daniel R Southworth / ![]() Abstract: p97, also known as valosin-containing protein, is an essential cytosolic AAA+ (ATPases associated with diverse cellular activities) hexamer that unfolds substrate polypeptides to support protein ...p97, also known as valosin-containing protein, is an essential cytosolic AAA+ (ATPases associated with diverse cellular activities) hexamer that unfolds substrate polypeptides to support protein homeostasis and macromolecular disassembly. Distinct sets of p97 adaptors guide cellular functions but their roles in direct control of the hexamer are unclear. The UBXD1 adaptor localizes with p97 in critical mitochondria and lysosome clearance pathways and contains multiple p97-interacting domains. Here we identify UBXD1 as a potent p97 ATPase inhibitor and report structures of intact human p97-UBXD1 complexes that reveal extensive UBXD1 contacts across p97 and an asymmetric remodeling of the hexamer. Conserved VIM, UBX and PUB domains tether adjacent protomers while a connecting strand forms an N-terminal domain lariat with a helix wedged at the interprotomer interface. An additional VIM-connecting helix binds along the second (D2) AAA+ domain. Together, these contacts split the hexamer into a ring-open conformation. Structures, mutagenesis and comparisons to other adaptors further reveal how adaptors containing conserved p97-remodeling motifs regulate p97 ATPase activity and structure. #1: Journal: bioRxiv / Year: 2023 Title: The p97/VCP adapter UBXD1 drives AAA+ remodeling and ring opening through multi-domain tethered interactions. Authors: Julian R Braxton / Chad R Altobelli / Maxwell R Tucker / Eric Tse / Aye C Thwin / Michelle R Arkin / Daniel R Southworth / ![]() Abstract: p97/VCP is an essential cytosolic AAA+ ATPase hexamer that extracts and unfolds substrate polypeptides during protein homeostasis and degradation. Distinct sets of p97 adapters guide cellular ...p97/VCP is an essential cytosolic AAA+ ATPase hexamer that extracts and unfolds substrate polypeptides during protein homeostasis and degradation. Distinct sets of p97 adapters guide cellular functions but their roles in direct control of the hexamer are unclear. The UBXD1 adapter localizes with p97 in critical mitochondria and lysosome clearance pathways and contains multiple p97-interacting domains. We identify UBXD1 as a potent p97 ATPase inhibitor and report structures of intact p97:UBXD1 complexes that reveal extensive UBXD1 contacts across p97 and an asymmetric remodeling of the hexamer. Conserved VIM, UBX, and PUB domains tether adjacent protomers while a connecting strand forms an N-terminal domain lariat with a helix wedged at the interprotomer interface. An additional VIM-connecting helix binds along the second AAA+ domain. Together these contacts split the hexamer into a ring-open conformation. Structures, mutagenesis, and comparisons to other adapters further reveal how adapters containing conserved p97-remodeling motifs regulate p97 ATPase activity and structure. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8fcl.cif.gz | 785.4 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8fcl.ent.gz | 660.8 KB | Display | PDB format |
| PDBx/mmJSON format | 8fcl.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8fcl_validation.pdf.gz | 2.2 MB | Display | wwPDB validaton report |
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| Full document | 8fcl_full_validation.pdf.gz | 2.2 MB | Display | |
| Data in XML | 8fcl_validation.xml.gz | 119.7 KB | Display | |
| Data in CIF | 8fcl_validation.cif.gz | 179.3 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/fc/8fcl ftp://data.pdbj.org/pub/pdb/validation_reports/fc/8fcl | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 28982MC ![]() 8fcmC ![]() 8fcnC ![]() 8fcoC ![]() 8fcpC ![]() 8fcqC ![]() 8fcrC ![]() 8fctC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 89436.820 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: VCP / Production host: ![]() #2: Protein | | Mass: 49823.656 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: UBXN6, UBXD1, UBXDC2 / Production host: ![]() #3: Chemical | ChemComp-ADP / Has ligand of interest | Y | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Complex of p97 and UBXD1 / Type: COMPLEX / Entity ID: #1-#2 / Source: MULTIPLE SOURCES |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Conc.: 1.89 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Details: Pelco easiGlow, 15 mA / Grid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K / Details: Wait time 10 sec, blot time 3 sec, blot force 0 |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 105000 X / Calibrated magnification: 59952 X / Nominal defocus max: 1800 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Average exposure time: 2.024 sec. / Electron dose: 43 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 22536 |
| EM imaging optics | Energyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||
| 3D reconstruction | Resolution: 3.51 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 82334 / Symmetry type: POINT | |||||||||||||||||||||
| Atomic model building | Protocol: FLEXIBLE FIT |
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About Yorodumi




Homo sapiens (human)
United States, 1items
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gel filtration



