|Entry||Database: EMDB / ID: EMD-21827|
|Title||Human p97 in complex with Npl4/Ufd1 and polyubiquitinated Ub-Eos (State I)|
|Sample||Human p97 in complex with Npl4/Ufd1 and polyubiquitinated Ub-Eos|
|Function / homology|
Function and homology information
flavin adenine dinucleotide catabolic process / positive regulation of Lys63-specific deubiquitinase activity / positive regulation of protein K63-linked deubiquitination / protein-DNA covalent cross-linking repair / ATPase complex / positive regulation of oxidative phosphorylation / VCP-NSFL1C complex / deubiquitinase activator activity / endosome to lysosome transport via multivesicular body sorting pathway / cellular response to arsenite ion ...flavin adenine dinucleotide catabolic process / positive regulation of Lys63-specific deubiquitinase activity / positive regulation of protein K63-linked deubiquitination / protein-DNA covalent cross-linking repair / ATPase complex / positive regulation of oxidative phosphorylation / VCP-NSFL1C complex / deubiquitinase activator activity / endosome to lysosome transport via multivesicular body sorting pathway / cellular response to arsenite ion / endoplasmic reticulum stress-induced pre-emptive quality control / Derlin-1 retrotranslocation complex / BAT3 complex binding / ERAD pathway / mitotic spindle disassembly / VCP-NPL4-UFD1 AAA ATPase complex / NADH metabolic process / aggresome assembly / regulation of protein localization to chromatin / vesicle-fusing ATPase / ER-associated misfolded protein catabolic process / K48-linked polyubiquitin modification-dependent protein binding / stress granule disassembly / positive regulation of mitochondrial membrane potential / retrograde protein transport, ER to cytosol / autophagosome maturation / regulation of aerobic respiration / MHC class I protein binding / regulation of synapse organization / positive regulation of ATP biosynthetic process / negative regulation of smoothened signaling pathway / ubiquitin-specific protease binding / ubiquitin-like protein ligase binding / ATP metabolic process / RHOH GTPase cycle / Attachment and Entry / polyubiquitin modification-dependent protein binding / proteasomal protein catabolic process / endoplasmic reticulum to Golgi vesicle-mediated transport / Protein methylation / translesion synthesis / HSF1 activation / proteasome complex / interstrand cross-link repair / endoplasmic reticulum unfolded protein response / lipid droplet / ubiquitin-dependent ERAD pathway / Josephin domain DUBs / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / macroautophagy / ADP binding / Hh mutants are degraded by ERAD / Defective CFTR causes cystic fibrosis / Hedgehog ligand biogenesis / Translesion Synthesis by POLH / ABC-family proteins mediated transport / positive regulation of protein catabolic process / positive regulation of protein-containing complex assembly / double-strand break repair / establishment of protein localization / Aggrephagy / cytoplasmic stress granule / autophagy / positive regulation of canonical Wnt signaling pathway / azurophil granule lumen / activation of cysteine-type endopeptidase activity involved in apoptotic process / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / site of double-strand break / viral genome replication / Ovarian tumor domain proteases / Attachment and Entry / E3 ubiquitin ligases ubiquitinate target proteins / proteasome-mediated ubiquitin-dependent protein catabolic process / cellular response to heat / secretory granule lumen / protein phosphatase binding / regulation of apoptotic process / protein ubiquitination / ficolin-1-rich granule lumen / lipid binding / : / glutamatergic synapse / DNA repair / protein domain specific binding / intracellular membrane-bounded organelle / cellular response to DNA damage stimulus / ubiquitin protein ligase binding / Neutrophil degranulation / endoplasmic reticulum membrane / perinuclear region of cytoplasm / endoplasmic reticulum / protein-containing complex / RNA binding / extracellular exosome / extracellular region / nucleoplasm / ATP binding / identical protein binding / nucleus / cytosol
Similarity search - Function
AAA ATPase, CDC48 family / Cell division protein 48 (CDC48), N-terminal domain / CDC48, N-terminal subdomain / Cell division protein 48 (CDC48) N-terminal domain / CDC48, domain 2 / Cell division protein 48 (CDC48), domain 2 / Cell division protein 48 (CDC48) domain 2 / CDC48 domain 2-like superfamily / Vps4 oligomerisation, C-terminal / Vps4 C terminal oligomerisation domain ...AAA ATPase, CDC48 family / Cell division protein 48 (CDC48), N-terminal domain / CDC48, N-terminal subdomain / Cell division protein 48 (CDC48) N-terminal domain / CDC48, domain 2 / Cell division protein 48 (CDC48), domain 2 / Cell division protein 48 (CDC48) domain 2 / CDC48 domain 2-like superfamily / Vps4 oligomerisation, C-terminal / Vps4 C terminal oligomerisation domain / Aspartate decarboxylase-like domain superfamily / AAA+ lid domain / AAA ATPase, AAA+ lid domain / AAA-protein family signature. / ATPase, AAA-type, conserved site / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Transitional endoplasmic reticulum ATPase
Similarity search - Component
|Biological species||Homo sapiens (human)|
|Method||single particle reconstruction / cryo EM / Resolution: 4.2 Å|
|Authors||Pan M / Yu Y / Liu L / Zhao M|
|Citation||Journal: Nat Commun / Year: 2021|
Title: Seesaw conformations of Npl4 in the human p97 complex and the inhibitory mechanism of a disulfiram derivative.
Authors: Man Pan / Qingyun Zheng / Yuanyuan Yu / Huasong Ai / Yuan Xie / Xin Zeng / Chu Wang / Lei Liu / Minglei Zhao /
Abstract: p97, also known as valosin-containing protein (VCP) or Cdc48, plays a central role in cellular protein homeostasis. Human p97 mutations are associated with several neurodegenerative diseases. ...p97, also known as valosin-containing protein (VCP) or Cdc48, plays a central role in cellular protein homeostasis. Human p97 mutations are associated with several neurodegenerative diseases. Targeting p97 and its cofactors is a strategy for cancer drug development. Despite significant structural insights into the fungal homolog Cdc48, little is known about how human p97 interacts with its cofactors. Recently, the anti-alcohol abuse drug disulfiram was found to target cancer through Npl4, a cofactor of p97, but the molecular mechanism remains elusive. Here, using single-particle cryo-electron microscopy (cryo-EM), we uncovered three Npl4 conformational states in complex with human p97 before ATP hydrolysis. The motion of Npl4 results from its zinc finger motifs interacting with the N domain of p97, which is essential for the unfolding activity of p97. In vitro and cell-based assays showed that the disulfiram derivative bis-(diethyldithiocarbamate)-copper (CuET) can bypass the copper transporter system and inhibit the function of p97 in the cytoplasm by releasing cupric ions under oxidative conditions, which disrupt the zinc finger motifs of Npl4, locking the essential conformational switch of the complex.
|Structure viewer||EM map: |
Downloads & links
|File||Download / File: emd_21827.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)|
|Projections & slices|
Images are generated by Spider.
|Voxel size||X=Y=Z: 1.36 Å|
|Symmetry||Space group: 1|
CCP4 map header:
-Entire Human p97 in complex with Npl4/Ufd1 and polyubiquitinated Ub-Eos
|Entire||Name: Human p97 in complex with Npl4/Ufd1 and polyubiquitinated Ub-Eos|
Number of Components: 1
-Component #1: protein, Human p97 in complex with Npl4/Ufd1 and polyubiquitinate...
|Protein||Name: Human p97 in complex with Npl4/Ufd1 and polyubiquitinated Ub-Eos|
Recombinant expression: No
|Source||Species: Homo sapiens (human)|
|Source (engineered)||Expression System: Escherichia coli (E. coli)|
|Specimen||Specimen State: Particle / Method: cryo EM|
|Sample solution||pH: 7.5|
|Vitrification||Cryogen Name: ETHANE|
-Electron microscopy imaging
Model: Titan Krios / Image courtesy: FEI Company
|Imaging||Microscope: FEI TITAN KRIOS|
|Electron gun||Electron Source: FIELD EMISSION GUN / Accelerating Voltage: 300 kV / Electron Dose: 50 e/Å2 / Illumination Mode: FLOOD BEAM|
|Lens||Imaging Mode: BRIGHT FIELD|
|Specimen Holder||Model: OTHER|
|Camera||Detector: GATAN K2 SUMMIT (4k x 4k)|
|Processing||Method: single particle reconstruction / Applied Symmetry: C1 (asymmetric) / Number of Projections: 109001|
|3D reconstruction||Software: RELION / Resolution: 4.2 Å / Resolution Method: FSC 0.143 CUT-OFF|
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