[English] 日本語
Yorodumi- EMDB-76028: Cryo-EM structure of substrate engaged p97-Ufd1-NPL4-Faf1 complex... -
+
Open data
-
Basic information
| Entry | ![]() | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Title | Cryo-EM structure of substrate engaged p97-Ufd1-NPL4-Faf1 complex (motor focused) | |||||||||
Map data | ||||||||||
Sample |
| |||||||||
Keywords | ERAD / ubiquitin / AAA+ ATPase / unfoldase / HYDROLASE | |||||||||
| Function / homology | Function and homology informationUFD1-NPL4 complex / Fas signaling pathway / negative regulation of RIG-I signaling pathway / CD95 death-inducing signaling complex / flavin adenine dinucleotide catabolic process / protein kinase regulator activity / VCP-NSFL1C complex / endoplasmic reticulum stress-induced pre-emptive quality control / endosome to lysosome transport via multivesicular body sorting pathway / BAT3 complex binding ...UFD1-NPL4 complex / Fas signaling pathway / negative regulation of RIG-I signaling pathway / CD95 death-inducing signaling complex / flavin adenine dinucleotide catabolic process / protein kinase regulator activity / VCP-NSFL1C complex / endoplasmic reticulum stress-induced pre-emptive quality control / endosome to lysosome transport via multivesicular body sorting pathway / BAT3 complex binding / cellular response to arsenite ion / cytoplasmic ubiquitin ligase complex / protein-DNA covalent cross-linking repair / Derlin-1 retrotranslocation complex / positive regulation of protein K63-linked deubiquitination / ATPase complex / deubiquitinase activator activity / response to insecticide / positive regulation of oxidative phosphorylation / cytoplasm protein quality control / aggresome assembly / ubiquitin-modified protein reader activity / regulation of protein localization to chromatin / cellular response to misfolded protein / mitotic spindle disassembly / VCP-NPL4-UFD1 AAA ATPase complex / positive regulation of mitochondrial membrane potential / regulation of protein catabolic process / vesicle-fusing ATPase / K48-linked polyubiquitin modification-dependent protein binding / nuclear outer membrane-endoplasmic reticulum membrane network / K63-linked polyubiquitin modification-dependent protein binding / ciliary transition zone / Enterobacterial factors antagonize host defense / PD-L1(CD274) glycosylation and translocation to plasma membrane / regulation of aerobic respiration / NAD+ metabolic process / retrograde protein transport, ER to cytosol / ribosome-associated ubiquitin-dependent protein catabolic process / stress granule disassembly / negative regulation of type I interferon production / ubiquitin-specific protease binding / Golgi organization / regulation of synapse organization / negative regulation of myoblast fusion / PELO:HBS1L and ABCE1 dissociate a ribosome on a non-stop mRNA / Dengue Virus Genome Translation and Replication / positive regulation of ATP biosynthetic process / Maturation of DENV proteins / ZNF598 and the Ribosome-associated Quality Trigger (RQT) complex dissociate a ribosome stalled on a no-go mRNA / intracellular membrane-bounded organelle / ubiquitin-like protein ligase binding / RHOH GTPase cycle / MHC class I protein binding / autophagosome maturation / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / negative regulation of hippo signaling / Eukaryotic Translation Termination / endoplasmic reticulum to Golgi vesicle-mediated transport / HSF1 activation / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / AMPK-induced ERAD and lysosome mediated degradation of PD-L1(CD274) / polyubiquitin modification-dependent protein binding / Viral mRNA Translation / NF-kappaB binding / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / interstrand cross-link repair / GTP hydrolysis and joining of the 60S ribosomal subunit / ATP metabolic process / L13a-mediated translational silencing of Ceruloplasmin expression / Major pathway of rRNA processing in the nucleolus and cytosol / GSK3B-mediated proteasomal degradation of PD-L1(CD274) / SPOP-mediated proteasomal degradation of PD-L1(CD274) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Attachment and Entry / skeletal system development / endoplasmic reticulum unfolded protein response / Protein methylation / ERAD pathway / heat shock protein binding / ciliary tip / translesion synthesis / Ribosome Quality Control (RQC) complex extracts and degrades nascent peptide / mRNA Polyadenylation / negative regulation of protein localization to chromatin / rescue of stalled cytosolic ribosome / Maturation of protein E / Maturation of protein E / lipid droplet / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.58 Å | |||||||||
Authors | Liao Z / Arkinson C / Martin A | |||||||||
| Funding support | United States, 1 items
| |||||||||
Citation | Journal: bioRxiv / Year: 2025Title: Faf1 accelerates p97-mediated protein unfolding by promoting ubiquitin engagement. Authors: Zengwei Liao / Connor Arkinson / Andreas Martin / ![]() Abstract: P97/VCP is a protein unfoldase of the AAA+ ATPase family that plays essential roles in numerous cellular processes, including ER-associated degradation and DNA replication. P97 utilizes various ...P97/VCP is a protein unfoldase of the AAA+ ATPase family that plays essential roles in numerous cellular processes, including ER-associated degradation and DNA replication. P97 utilizes various cofactors to process different substrates. For unfolding of proteins that are modified with K48-linked ubiquitin chains, p97 works with the heterodimeric cofactor Ufd1-Npl4, and the cofactor Faf1 was shown to enhance this activity in the context of replisome disassembly, yet the underlying mechanisms remain unknown. Here, we employ an reconstituted system with human components for biochemical experiments, mutational studies, FRET-based assays, and cryo-EM structure determination to reveal that Faf1 plays a generic role in accelerating ubiquitin-dependent substrate processing by promoting the unfolding of an initiator ubiquitin and its engagement by the ATPase motor. Faf1 thereby uses its p97-bound C-terminal UBX domain to anchor a long helix that braces the UT3 domain of Ufd1 and apparently stabilizes the Ufd1-Npl4 cofactor for ubiquitin unfolding. Our findings demonstrate how p97 works simultaneously with several cofactors to facilitate the unfolding of ubiquitinated proteins, indicating more complex regulatory mechanisms for substrate selection than for the simpler Cdc48 ortholog in yeast. | |||||||||
| History |
|
-
Structure visualization
| Supplemental images |
|---|
-
Downloads & links
-EMDB archive
| Map data | emd_76028.map.gz | 32.4 MB | EMDB map data format | |
|---|---|---|---|---|
| Header (meta data) | emd-76028-v30.xml emd-76028.xml | 31.8 KB 31.8 KB | Display Display | EMDB header |
| Images | emd_76028.png | 162.6 KB | ||
| Filedesc metadata | emd-76028.cif.gz | 8 KB | ||
| Others | emd_76028_additional_1.map.gz emd_76028_additional_2.map.gz emd_76028_half_map_1.map.gz emd_76028_half_map_2.map.gz | 59.1 MB 57.2 MB 59.4 MB 59.4 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-76028 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-76028 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 11taMC ![]() 11syC ![]() 11veC M: atomic model generated by this map C: citing same article ( |
|---|---|
| Similar structure data | Similarity search - Function & homology F&H Search |
-
Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
|---|---|
| Related items in Molecule of the Month |
-
Map
| File | Download / File: emd_76028.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.4775 Å | ||||||||||||||||||||||||||||||||||||
| Density |
| ||||||||||||||||||||||||||||||||||||
| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
|
-Supplemental data
-Additional map: Sharpened by CryoSPARC
| File | emd_76028_additional_1.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Annotation | Sharpened by CryoSPARC | ||||||||||||
| Projections & Slices |
| ||||||||||||
| Density Histograms |
-Additional map: Sharpened by DeepEMhancer
| File | emd_76028_additional_2.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Annotation | Sharpened by DeepEMhancer | ||||||||||||
| Projections & Slices |
| ||||||||||||
| Density Histograms |
-Half map: #2
| File | emd_76028_half_map_1.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & Slices |
| ||||||||||||
| Density Histograms |
-Half map: #1
| File | emd_76028_half_map_2.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & Slices |
| ||||||||||||
| Density Histograms |
-
Sample components
-Entire : Cryo-EM structure of substrate engaged p97-Ufd1-NPL4-Faf1 complex...
| Entire | Name: Cryo-EM structure of substrate engaged p97-Ufd1-NPL4-Faf1 complex (motor focused) |
|---|---|
| Components |
|
-Supramolecule #1: Cryo-EM structure of substrate engaged p97-Ufd1-NPL4-Faf1 complex...
| Supramolecule | Name: Cryo-EM structure of substrate engaged p97-Ufd1-NPL4-Faf1 complex (motor focused) type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
|---|---|
| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 700 kDa/nm |
-Macromolecule #1: Nuclear protein localization protein 4 homolog
| Macromolecule | Name: Nuclear protein localization protein 4 homolog / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
|---|---|
| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 68.373172 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MGGGAESIII RVQSPDGVKR ITATKRETAA TFLKKVAKEF GFQNNGFSVY INRNKTGEIT ASSNKSLNLL KIKHGDLLFL FPSSLAGPS SEMETSVPPG FKVFGAPNVV EDEIDQYLSK QDGKIYRSRD PQLCRHGPLG KCVHCVPLEP FDEDYLNHLE P PVKHMSFH ...String: MGGGAESIII RVQSPDGVKR ITATKRETAA TFLKKVAKEF GFQNNGFSVY INRNKTGEIT ASSNKSLNLL KIKHGDLLFL FPSSLAGPS SEMETSVPPG FKVFGAPNVV EDEIDQYLSK QDGKIYRSRD PQLCRHGPLG KCVHCVPLEP FDEDYLNHLE P PVKHMSFH AYIRKLTGGA DKGKFVALEN ISCKIKSGCE GHLPWPNGIC TKCQPSAITL NRQKYRHVDN IMFENHTVAD RF LDFWRKT GNQHFGYLYG RYTEHKDIPL GIRAEVAAIY EPPQIGTQNS LELLEDPKAE VVDEIAAKLG LRKVGWIFTD LVS EDTRKG TVRYSRNKDT YFLSSEECIT AGDFQNKHPN MCRLSPDGHF GSKFVTAVAT GGPDNQVHFE GYQVSNQCMA LVRD ECLLP CKDAPELGYA KESSSEQYVP DVFYKDVDKF GNEITQLARP LPVEYLIIDI TTTFPKDPVY TFSISQNPFP IENRD VLGE TQDFHSLATY LSQNTSSVFL DTISDFHLLL FLVTNEVMPL QDSISLLLEA VRTRNEELAQ TWKRSEQWAT IEQLCS TVG GQLPGLHEYG AVGGSTHTAT AAMWACQHCT FMNQPGTGHC EMCSLPRT UniProtKB: Nuclear protein localization protein 4 homolog |
-Macromolecule #2: Ubiquitin
| Macromolecule | Name: Ubiquitin / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
|---|---|
| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 8.576831 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGKQL EDGRTLSDYN IQKESTLHLV LRLRGG UniProtKB: Ubiquitin-ribosomal protein eL40 fusion protein |
-Macromolecule #3: FAS-associated factor 1
| Macromolecule | Name: FAS-associated factor 1 / type: protein_or_peptide / ID: 3 / Details: FH-UBX fragment / Number of copies: 2 / Enantiomer: LEVO |
|---|---|
| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 20.495 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: PLGMAAMEIF TAQQQEDIKD EDEREARENV KREQDEAYRL SLEADRAKRE AHEREMAEQF RLEQIRKEQE EEREAIRLSL EQALPPEPK EENAEPVSKL RIRTPSGEFL ERRFLASNKL QIVFDFVASK GFPWDEYKLL STFPRRDVTQ LDPNKSLLEV K LFPQETLF LEAKE UniProtKB: FAS-associated factor 1 |
-Macromolecule #4: Ubiquitin recognition factor in ER-associated degradation protein 1
| Macromolecule | Name: Ubiquitin recognition factor in ER-associated degradation protein 1 type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
|---|---|
| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 35.373188 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MFSFNMFDHP IPRVFQNRFS TQYRCFSVSM LAGPNDRSDV EKGGKIIMPP SALDQLSRLN ITYPMLFKLT NKNSDRMTHC GVLEFVADE GICYLPHWMM QNLLLEEGGL VQVESVNLQV ATYSKFQPQS PDFLDITNPK AVLENALRNF ACLTTGDVIA I NYNEKIYE ...String: MFSFNMFDHP IPRVFQNRFS TQYRCFSVSM LAGPNDRSDV EKGGKIIMPP SALDQLSRLN ITYPMLFKLT NKNSDRMTHC GVLEFVADE GICYLPHWMM QNLLLEEGGL VQVESVNLQV ATYSKFQPQS PDFLDITNPK AVLENALRNF ACLTTGDVIA I NYNEKIYE LRVMETKPDK AVSIIECDMN VDFDAPLGYK EPERQVQHEE STEGEADHSG YAGELGFRAF SGSGNRLDGK KK GVEPSPS PIKPGDIKRG IPNYEFKLGK ITFIRNSRPL VKKVEEDEAG GRFVAFSGEG QSLRKKGRKP HHHHHH UniProtKB: Ubiquitin recognition factor in ER-associated degradation protein 1 |
-Macromolecule #5: Transitional endoplasmic reticulum ATPase
| Macromolecule | Name: Transitional endoplasmic reticulum ATPase / type: protein_or_peptide / ID: 5 / Number of copies: 6 / Enantiomer: LEVO / EC number: vesicle-fusing ATPase |
|---|---|
| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 91.177781 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 LQQSRGFGSF RFPSGNQGGA GPSQGSGGGT GGSVYTEDN DDDLYGVDKL AAALEHHHHH H UniProtKB: Transitional endoplasmic reticulum ATPase |
-Macromolecule #6: ZINC ION
| Macromolecule | Name: ZINC ION / type: ligand / ID: 6 / Number of copies: 2 / Formula: ZN |
|---|---|
| Molecular weight | Theoretical: 65.409 Da |
-Macromolecule #7: ADENOSINE-5'-TRIPHOSPHATE
| Macromolecule | Name: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 7 / Number of copies: 3 / Formula: ATP |
|---|---|
| Molecular weight | Theoretical: 507.181 Da |
| Chemical component information | ![]() ChemComp-ATP: |
-Macromolecule #8: ADENOSINE-5'-DIPHOSPHATE
| Macromolecule | Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 8 / Number of copies: 9 / Formula: ADP |
|---|---|
| Molecular weight | Theoretical: 427.201 Da |
| Chemical component information | ![]() ChemComp-ADP: |
-Experimental details
-Structure determination
| Method | cryo EM |
|---|---|
Processing | single particle reconstruction |
| Aggregation state | particle |
-
Sample preparation
| Buffer | pH: 7.6 Details: 50 mM HEPES, pH 7.6, 150 mM KCl, 5 mM MgCl2, 2 mM ATP |
|---|---|
| Grid | Model: Quantifoil R2/2 / Material: COPPER / Mesh: 200 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 2 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 90 sec. / Pretreatment - Atmosphere: AIR |
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV |
-
Electron microscopy
| Microscope | TFS KRIOS |
|---|---|
| Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Number grids imaged: 2 / Number real images: 17244 / Average electron dose: 50.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.6 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 105000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
Movie
Controller
About Yorodumi



Keywords
Homo sapiens (human)
Authors
United States, 1 items
Citation












































Z (Sec.)
Y (Row.)
X (Col.)























































Processing
FIELD EMISSION GUN
