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- EMDB-22678: Structure of apo VCP hexamer generated from bacterially recombina... -
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Basic information
Entry | Database: EMDB / ID: EMD-22678 | |||||||||
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Title | Structure of apo VCP hexamer generated from bacterially recombinant VCP/p97 | |||||||||
![]() | Cryo-EM density map of apo VCP hexamer generated from bacterially recombinant VCP/p97. | |||||||||
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![]() | AAA ATPase / ATP hydrolysis / segregase / CYTOSOLIC PROTEIN / HYDROLASE | |||||||||
Function / homology | ![]() positive regulation of Lys63-specific deubiquitinase activity / 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 / cellular response to arsenite ion / BAT3 complex binding / cytoplasm protein quality control / Derlin-1 retrotranslocation complex / protein-DNA covalent cross-linking repair ...positive regulation of Lys63-specific deubiquitinase activity / 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 / cellular response to arsenite ion / BAT3 complex binding / cytoplasm protein quality control / Derlin-1 retrotranslocation complex / protein-DNA covalent cross-linking repair / positive regulation of protein K63-linked deubiquitination / positive regulation of oxidative phosphorylation / mitotic spindle disassembly / deubiquitinase activator activity / NADH metabolic process / aggresome assembly / regulation of protein localization to chromatin / ubiquitin-modified protein reader activity / VCP-NPL4-UFD1 AAA ATPase complex / vesicle-fusing ATPase / cellular response to misfolded protein / negative regulation of protein localization to chromatin / positive regulation of mitochondrial membrane potential / K48-linked polyubiquitin modification-dependent protein binding / retrograde protein transport, ER to cytosol / regulation of aerobic respiration / stress granule disassembly / regulation of synapse organization / positive regulation of ATP biosynthetic process / ATPase complex / ubiquitin-specific protease binding / 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 / proteasomal protein catabolic process / Protein methylation / ATP metabolic process / endoplasmic reticulum unfolded protein response / negative regulation of smoothened signaling pathway / ERAD pathway / Attachment and Entry / lipid droplet / proteasome complex / viral genome replication / Josephin domain DUBs / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / Hh mutants are degraded by ERAD / positive regulation of protein-containing complex assembly / macroautophagy / Hedgehog ligand biogenesis / Defective CFTR causes cystic fibrosis / establishment of protein localization / Translesion Synthesis by POLH / positive regulation of non-canonical NF-kappaB signal transduction / ABC-family proteins mediated transport / ADP binding / autophagy / Aggrephagy / positive regulation of protein catabolic process / cytoplasmic stress granule / azurophil granule lumen / KEAP1-NFE2L2 pathway / Ovarian tumor domain proteases / 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 / Neddylation / site of double-strand break / cellular response to heat / ubiquitin-dependent protein catabolic process / protein phosphatase binding / regulation of apoptotic process / secretory granule lumen / proteasome-mediated ubiquitin-dependent protein catabolic process / ficolin-1-rich granule lumen / Attachment and Entry / protein ubiquitination / protein domain specific binding / intracellular membrane-bounded organelle / DNA repair / ubiquitin protein ligase binding / lipid binding / DNA damage response / Neutrophil degranulation / endoplasmic reticulum membrane / perinuclear region of cytoplasm / glutamatergic synapse / endoplasmic reticulum / protein-containing complex / ATP hydrolysis activity / RNA binding Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.2 Å | |||||||||
![]() | Yu G / Bai Y | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-electron microscopy structures of VCP/p97 reveal a new mechanism of oligomerization regulation. Authors: Guimei Yu / Yunpeng Bai / Kunpeng Li / Ovini Amarasinghe / Wen Jiang / Zhong-Yin Zhang / ![]() Abstract: VCP/p97 is an evolutionarily conserved AAA+ ATPase important for cellular homeostasis. Previous studies suggest that VCP predominantly exists as a homohexamer. Here, we performed structural and ...VCP/p97 is an evolutionarily conserved AAA+ ATPase important for cellular homeostasis. Previous studies suggest that VCP predominantly exists as a homohexamer. Here, we performed structural and biochemical characterization of VCP dodecamer, an understudied state of VCP. The structure revealed an apo nucleotide status that has rarely been captured, a tail-to-tail assembly of two hexamers, and the up-elevated N-terminal domains akin to that seen in the ATP-bound hexamer. Further analyses elucidated a nucleotide status-dependent dodecamerization mechanism, where nucleotide dissociation from the D2 AAA domains induces and promotes VCP dodecamerization. In contrast, nucleotide-free D1 AAA domains are associated with the up-rotation of N-terminal domains, which may prime D1 for ATP binding. These results therefore reveal new nucleotide status-dictated intra- and interhexamer conformational changes and suggest that modulation of D2 domain nucleotide occupancy may serve as a mechanism in controlling VCP oligomeric states. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 59.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 19.2 KB 19.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.7 KB | Display | ![]() |
Images | ![]() | 96.2 KB | ||
Masks | ![]() | 64 MB | ![]() | |
Filedesc metadata | ![]() | 6.6 KB | ||
Others | ![]() ![]() | 59.3 MB 59.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 943.2 KB | Display | ![]() |
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Full document | ![]() | 942.7 KB | Display | |
Data in XML | ![]() | 16.2 KB | Display | |
Data in CIF | ![]() | 21.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7k59MC ![]() 7k56C ![]() 7k57C C: citing same article ( M: atomic model generated by this map |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Cryo-EM density map of apo VCP hexamer generated from bacterially recombinant VCP/p97. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.5525 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
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Projections & Slices |
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Density Histograms |
-Half map: half map 1
File | emd_22678_half_map_1.map | ||||||||||||
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Annotation | half map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: half map 2
File | emd_22678_half_map_2.map | ||||||||||||
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Annotation | half map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : VCP/p97
Entire | Name: VCP/p97 |
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Components |
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-Supramolecule #1: VCP/p97
Supramolecule | Name: VCP/p97 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all Details: VCP/p97 was overexpressed and purified from E.coli BL21(DE3). Purified protein was treated with apyrase to remove prebound ADP and generate apo VCP/p97. |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 540 KDa |
-Macromolecule #1: Transitional endoplasmic reticulum ATPase
Macromolecule | Name: Transitional endoplasmic reticulum ATPase / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO / EC number: vesicle-fusing ATPase |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 89.464828 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MASGADSKGD DLSTAILKQK NRPNRLIVDE AINEDNSVVS LSQPKMDELQ LFRGDTVLLK GKKRREAVCI VLSDDTCSDE KIRMNRVVR NNLRVRLGDV ISIQPCPDVK YGKRIHVLPI DDTVEGITGN LFEVYLKPYF LEAYRPIRKG DIFLVRGGMR A VEFKVVET ...String: MASGADSKGD DLSTAILKQK NRPNRLIVDE AINEDNSVVS LSQPKMDELQ LFRGDTVLLK GKKRREAVCI VLSDDTCSDE KIRMNRVVR NNLRVRLGDV ISIQPCPDVK YGKRIHVLPI DDTVEGITGN LFEVYLKPYF LEAYRPIRKG DIFLVRGGMR A VEFKVVET DPSPYCIVAP DTVIHCEGEP IKREDEEESL NEVGYDDIGG CRKQLAQIKE MVELPLRHPA LFKAIGVKPP RG ILLYGPP GTGKTLIARA VANETGAFFF LINGPEIMSK LAGESESNLR KAFEEAEKNA PAIIFIDELD AIAPKREKTH GEV ERRIVS QLLTLMDGLK QRAHVIVMAA TNRPNSIDPA LRRFGRFDRE VDIGIPDATG RLEILQIHTK NMKLADDVDL EQVA NETHG HVGADLAALC SEAALQAIRK KMDLIDLEDE TIDAEVMNSL AVTMDDFRWA LSQSNPSALR ETVVEVPQVT WEDIG GLED VKRELQELVQ YPVEHPDKFL KFGMTPSKGV LFYGPPGCGK TLLAKAIANE CQANFISIKG PELLTMWFGE SEANVR EIF DKARQAAPCV LFFDELDSIA KARGGNIGDG GGAADRVINQ ILTEMDGMST KKNVFIIGAT NRPDIIDPAI LRPGRLD QL IYIPLPDEKS RVAILKANLR KSPVAKDVDL EFLAKMTNGF SGADLTEICQ RACKLAIRES IESEIRRERE RQTNPSAM E VEEDDPVPEI RRDHFEEAMR FARRSVSDND IRKYEMFAQT LQQSRGFGDF RFPSGNQGGA GPSQGSGGGT GGSVYTEDN DDDLYG UniProtKB: Transitional endoplasmic reticulum ATPase |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 1 mg/mL | ||||||||||||
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Buffer | pH: 7.4 Component:
Details: 20mM Hepes pH7.4, 150mM NaCl, 1mM TCEP | ||||||||||||
Grid | Model: PELCO Ultrathin Carbon with Lacey Carbon / Support film - #0 - Film type ID: 1 / Support film - #0 - Material: CARBON / Support film - #0 - topology: LACEY / Support film - #1 - Film type ID: 2 / Support film - #1 - Material: GRAPHENE OXIDE / Support film - #1 - topology: CONTINUOUS | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 70 % / Chamber temperature: 293 K / Instrument: GATAN CRYOPLUNGE 3 Details: 3.5ul sample was applied to a lacy carbon grid coated with graphene oxide. 7 seconds blot with filter paper was performed using Gatan Cp3.. | ||||||||||||
Details | VCP/p97 was overexpressed and purified with E.coli BL21(DE3). Purified proteins were treated with apyrase to remove prebound ADP and generate apo VCP/p97. |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Number grids imaged: 1 / Number real images: 807 / Average exposure time: 8.0 sec. / Average electron dose: 40.0 e/Å2 Details: A frame rate of 5 frames per second, a dose rate of 7.6 eps and a total exposure of 8 seconds were used. |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |