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- EMDB-28984: Cryo-EM structure of p97:UBXD1 open state (consensus) -

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Basic information

Entry
Database: EMDB / ID: EMD-28984
TitleCryo-EM structure of p97:UBXD1 open state (consensus)
Map data
Sample
  • Complex: Complex of p97 and UBXD1
    • Protein or peptide: Transitional endoplasmic reticulum ATPase
    • Protein or peptide: UBX domain-containing protein 6
KeywordsAAA+ / chaperone / hydrolase
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 / cellular response to arsenite ion / BAT3 complex binding / Derlin-1 retrotranslocation complex / protein-DNA covalent cross-linking repair / cytoplasm protein quality control ...: / 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 / Derlin-1 retrotranslocation complex / protein-DNA covalent cross-linking repair / cytoplasm protein quality control / positive regulation of protein K63-linked deubiquitination / positive regulation of oxidative phosphorylation / : / mitotic spindle disassembly / aggresome assembly / deubiquitinase activator activity / 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 / positive regulation of mitochondrial membrane potential / negative regulation of protein localization to chromatin / K48-linked polyubiquitin modification-dependent protein binding / retrograde protein transport, ER to cytosol / regulation of aerobic respiration / stress granule disassembly / positive regulation of ATP biosynthetic process / regulation of synapse organization / 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 / endoplasmic reticulum to Golgi vesicle-mediated transport / negative regulation of hippo signaling / HSF1 activation / translesion synthesis / interstrand cross-link repair / proteasomal protein catabolic process / ATP metabolic process / Protein methylation / endoplasmic reticulum unfolded protein response / 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 / negative regulation of smoothened signaling pathway / macroautophagy / positive regulation of protein-containing complex assembly / Hh mutants are degraded by ERAD / Hedgehog ligand biogenesis / establishment of protein localization / 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 / positive regulation of protein catabolic process / cytoplasmic stress granule / Aggrephagy / 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 / protein phosphatase binding / secretory granule lumen / regulation of apoptotic process / proteasome-mediated ubiquitin-dependent protein catabolic process / ficolin-1-rich granule lumen / Attachment and Entry / endosome / protein ubiquitination / ciliary basal body / protein domain specific binding / lysosomal membrane / DNA repair / intracellular membrane-bounded organelle / lipid binding / centrosome / ubiquitin protein ligase binding / DNA damage response / Neutrophil degranulation / endoplasmic reticulum membrane
Similarity search - Function
UBXN6, PUB domain / Domain present in ubiquitin-regulatory proteins / UBX domain / PUB domain / PUB-like domain superfamily / UBX domain / PUB domain / UBX domain profile. / domain in protein kinases, N-glycanases and other nuclear proteins / AAA ATPase, CDC48 family ...UBXN6, PUB domain / Domain present in ubiquitin-regulatory proteins / UBX domain / PUB domain / PUB-like domain superfamily / UBX domain / PUB domain / UBX domain profile. / domain in protein kinases, N-glycanases and other nuclear proteins / 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 / : / Aspartate decarboxylase-like domain superfamily / AAA ATPase, AAA+ lid domain / AAA+ lid domain / ATPase, AAA-type, conserved site / AAA-protein family signature. / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / Ubiquitin-like domain superfamily / 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 / UBX domain-containing protein 6
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.27 Å
AuthorsBraxton JR / Tucker MR / Tse E / Southworth DR
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM138690 United States
CitationJournal: 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.
History
DepositionDec 1, 2022-
Header (metadata) releaseJun 21, 2023-
Map releaseJun 21, 2023-
UpdateOct 23, 2024-
Current statusOct 23, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_28984.png

Downloads & links

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Map

FileDownload / File: emd_28984.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 400 pix.
= 333.6 Å		0.83 Å/pix.
x 400 pix.
= 333.6 Å		0.83 Å/pix.
x 400 pix.
= 333.6 Å

Surface

Projections

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Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.834 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.45
Minimum - Maximum-1.5913557 - 2.7353172
Average (Standard dev.)-0.0014275528 (±0.06347858)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 333.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: Unsharpened map

Fileemd_28984_additional_1.map
AnnotationUnsharpened map
Projections & Slices
AxesZYX

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Half map: #1

Fileemd_28984_half_map_1.map
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Half map: #2

Fileemd_28984_half_map_2.map
Projections & Slices
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Sample components

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Entire : Complex of p97 and UBXD1

EntireName: Complex of p97 and UBXD1
Components
  • Complex: Complex of p97 and UBXD1
    • Protein or peptide: Transitional endoplasmic reticulum ATPase
    • Protein or peptide: UBX domain-containing protein 6

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Supramolecule #1: Complex of p97 and UBXD1

SupramoleculeName: Complex of p97 and UBXD1 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Transitional endoplasmic reticulum ATPase

MacromoleculeName: Transitional endoplasmic reticulum ATPase / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO / EC number: vesicle-fusing ATPase
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MASGADSKGD DLSTAILKQK NRPNRLIVDE AINEDNSVVS LSQPKMDELQ LFRGDTVLLK GKKRREAVCI VLSDDTCSDE KIRMNRVVRN NLRVRLGDVI SIQPCPDVKY GKRIHVLPID DTVEGITGNL FEVYLKPYFL EAYRPIRKGD IFLVRGGMRA VEFKVVETDP ...String:
MASGADSKGD DLSTAILKQK NRPNRLIVDE AINEDNSVVS LSQPKMDELQ LFRGDTVLLK GKKRREAVCI VLSDDTCSDE KIRMNRVVRN NLRVRLGDVI SIQPCPDVKY GKRIHVLPID DTVEGITGNL FEVYLKPYFL EAYRPIRKGD IFLVRGGMRA VEFKVVETDP SPYCIVAPDT VIHCEGEPIK REDEEESLNE VGYDDIGGCR KQLAQIKEMV ELPLRHPALF KAIGVKPPRG ILLYGPPGTG KTLIARAVAN ETGAFFFLIN GPEIMSKLAG ESESNLRKAF EEAEKNAPAI IFIDELDAIA PKREKTHGEV ERRIVSQLLT LMDGLKQRAH VIVMAATNRP NSIDPALRRF GRFDREVDIG IPDATGRLEI LQIHTKNMKL ADDVDLEQVA NETHGHVGAD LAALCSEAAL QAIRKKMDLI DLEDETIDAE VMNSLAVTMD DFRWALSQSN PSALRETVVE VPQVTWEDIG GLEDVKRELQ ELVQYPVEHP DKFLKFGMTP SKGVLFYGPP GCGKTLLAKA IANECQANFI SIKGPELLTM WFGESEANVR EIFDKARQAA PCVLFFDELD SIAKARGGNI GDGGGAADRV INQILTEMDG MSTKKNVFII GATNRPDIID PAILRPGRLD QLIYIPLPDE KSRVAILKAN LRKSPVAKDV DLEFLAKMTN GFSGADLTEI CQRACKLAIR ESIESEIRRE RERQTNPSAM EVEEDDPVPE IRRDHFEEAM RFARRSVSDN DIRKYEMFAQ TLQQSRGFGS FRFPSGNQGG AGPSQGSGGG TGGSVYTEDN DDDLYG

UniProtKB: Transitional endoplasmic reticulum ATPase

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Macromolecule #2: UBX domain-containing protein 6

MacromoleculeName: UBX domain-containing protein 6 / type: protein_or_peptide / ID: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MKKFFQEFKA DIKFKSAGPG QKLKESVGEK AHKEKPNQPA PRPPRQGPTN EAQMAAAAAL ARLEQKQSRA WGPTSQDTIR NQVRKELQAE ATVSGSPEAP GTNVVSEPRE EGSAHLAVPG VYFTCPLTGA TLRKDQRDAC IKEAILLHFS TDPVAASIMK IYTFNKDQDR ...String:
MKKFFQEFKA DIKFKSAGPG QKLKESVGEK AHKEKPNQPA PRPPRQGPTN EAQMAAAAAL ARLEQKQSRA WGPTSQDTIR NQVRKELQAE ATVSGSPEAP GTNVVSEPRE EGSAHLAVPG VYFTCPLTGA TLRKDQRDAC IKEAILLHFS TDPVAASIMK IYTFNKDQDR VKLGVDTIAK YLDNIHLHPE EEKYRKIKLQ NKVFQERINC LEGTHEFFEA IGFQKVLLPA QDQEDPEEFY VLSETTLAQP QSLERHKEQL LAAEPVRAKL DRQRRVFQPS PLASQFELPG DFFNLTAEEI KREQRLRSEA VERLSVLRTK AMREKEEQRG LRKYNYTLLR VRLPDGCLLQ GTFYARERLG AVYGFVREAL QSDWLPFELL ASGGQKLSED ENLALNECGL VPSALLTFSW DMAVLEDIKA AGAEPDSILK PELLSAIEKL L

UniProtKB: UBX domain-containing protein 6

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration1.89 mg/mL
BufferpH: 7.4
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 120 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.03 kPa / Details: Pelco easiGlow, 15 mA
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV / Details: Wait time 10 sec, blot time 3 sec, blot force 0.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 1 / Number real images: 22536 / Average exposure time: 2.024 sec. / Average electron dose: 43.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Calibrated magnification: 59952 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 105000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER / Details: Ab initio reconstruction from cryoSPARC
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.27 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 563468
Initial angle assignmentType: RANDOM ASSIGNMENT / Software - Name: cryoSPARC
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC

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Atomic model buiding 1

RefinementProtocol: FLEXIBLE FIT

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