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- PDB-9e8j: Nub1/Fat10-processing human 26S proteasome bound to Txnl1 with Rp... -

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Basic information

Entry
Database: PDB / ID: 9e8j
TitleNub1/Fat10-processing human 26S proteasome bound to Txnl1 with Rpt1 at top of spiral staircase
Components
  • (26S protease regulatory subunit ...) x 2
  • (26S proteasome non-ATPase regulatory subunit ...) x 11
  • (26S proteasome regulatory subunit ...) x 4
  • (Proteasome subunit alpha type- ...) x 7
  • 26S proteasome complex subunit SEM1
  • Isoform 2 of NEDD8 ultimate buster 1
  • Thioredoxin-like protein 1
  • substrate peptide
KeywordsMOTOR PROTEIN / HYDROLASE/PROTEIN BINDING / 26S Proteasome / Nub1 / Fat10 / HYDROLASE-PROTEIN BINDING complex
Function / homology
Function and homology information


regulation of ubiquitin-dependent protein catabolic process / positive regulation of inclusion body assembly / disulfide oxidoreductase activity / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / thyrotropin-releasing hormone receptor binding / modulation by host of viral transcription / Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases / integrator complex / proteasome accessory complex ...regulation of ubiquitin-dependent protein catabolic process / positive regulation of inclusion body assembly / disulfide oxidoreductase activity / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / thyrotropin-releasing hormone receptor binding / modulation by host of viral transcription / Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases / integrator complex / proteasome accessory complex / purine ribonucleoside triphosphate binding / meiosis I / cytosolic proteasome complex / proteasome regulatory particle / positive regulation of proteasomal protein catabolic process / proteasome regulatory particle, lid subcomplex / proteasome-activating activity / proteasome regulatory particle, base subcomplex / metal-dependent deubiquitinase activity / regulation of endopeptidase activity / negative regulation of programmed cell death / protein K63-linked deubiquitination / Regulation of ornithine decarboxylase (ODC) / RHOBTB1 GTPase cycle / RND1 GTPase cycle / Proteasome assembly / Homologous DNA Pairing and Strand Exchange / Defective homologous recombination repair (HRR) due to BRCA1 loss of function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA2/RAD51/RAD51C binding function / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / Cross-presentation of soluble exogenous antigens (endosomes) / RND2 GTPase cycle / RND3 GTPase cycle / Resolution of D-loop Structures through Holliday Junction Intermediates / proteasome core complex / Somitogenesis / K63-linked deubiquitinase activity / Impaired BRCA2 binding to RAD51 / RHOV GTPase cycle / proteasome binding / myofibril / transcription factor binding / regulation of protein catabolic process / immune system process / proteasome storage granule / Presynaptic phase of homologous DNA pairing and strand exchange / RHOU GTPase cycle / protein-disulfide reductase activity / general transcription initiation factor binding / response to tumor necrosis factor / blastocyst development / response to type II interferon / polyubiquitin modification-dependent protein binding / positive regulation of RNA polymerase II transcription preinitiation complex assembly / protein deubiquitination / endopeptidase activator activity / proteasome assembly / NF-kappaB binding / proteasome core complex, alpha-subunit complex / mRNA export from nucleus / RHOBTB2 GTPase cycle / SARS-CoV-1 targets host intracellular signalling and regulatory pathways / inclusion body / enzyme regulator activity / ERAD pathway / regulation of proteasomal protein catabolic process / proteasome complex / sarcomere / proteolysis involved in protein catabolic process / Regulation of activated PAK-2p34 by proteasome mediated degradation / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / Asymmetric localization of PCP proteins / Ubiquitin-dependent degradation of Cyclin D / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / TNFR2 non-canonical NF-kB pathway / AUF1 (hnRNP D0) binds and destabilizes mRNA / stem cell differentiation / Vpu mediated degradation of CD4 / Assembly of the pre-replicative complex / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Degradation of DVL / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Dectin-1 mediated noncanonical NF-kB signaling / lipopolysaccharide binding / Degradation of AXIN / Hh mutants are degraded by ERAD / negative regulation of inflammatory response to antigenic stimulus / Activation of NF-kappaB in B cells / P-body / Degradation of GLI1 by the proteasome / G2/M Checkpoints / Hedgehog ligand biogenesis / Defective CFTR causes cystic fibrosis / Autodegradation of the E3 ubiquitin ligase COP1 / Negative regulation of NOTCH4 signaling / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2
Similarity search - Function
PITH domain / PITH domain superfamily / PITH domain / PITH domain profile. / NEDD8 ultimate buster 1 / NEDD8 ultimate buster 1, ubiquitin-like domain / Ubiquitin-like domain / : / UBA/TS-N domain / Ubiquitin interaction motif ...PITH domain / PITH domain superfamily / PITH domain / PITH domain profile. / NEDD8 ultimate buster 1 / NEDD8 ultimate buster 1, ubiquitin-like domain / Ubiquitin-like domain / : / UBA/TS-N domain / Ubiquitin interaction motif / : / 26S proteasome regulatory subunit RPN7/PSMD6 C-terminal helix / 26S proteasome non-ATPase regulatory subunit Rpn12 / 26S proteasome regulatory subunit, C-terminal / Proteasome regulatory subunit C-terminal / 26S proteasome regulatory subunit RPN5, C-terminal domain / : / 26S proteasome regulatory subunit RPN5 C-terminal domain / PSD13 N-terminal repeats / 26S proteasome regulatory subunit Rpn6, N-terminal / 6S proteasome subunit Rpn6, C-terminal helix domain / 26S proteasome regulatory subunit RPN6 N-terminal domain / 26S proteasome subunit RPN6 C-terminal helix domain / 26S Proteasome non-ATPase regulatory subunit 13 / : / 26S proteasome subunit RPN2, N-terminal domain / DSS1/SEM1 / DSS1/SEM1 family / DSS1_SEM1 / 26S proteasome regulatory complex, non-ATPase subcomplex, Rpn2/Psmd1 subunit / 26S proteasome regulatory subunit RPN2, C-terminal / 26S proteasome regulatory subunit RPN2 C-terminal domain / Proteasome subunit Rpn10 / 26S Proteasome non-ATPase regulatory subunit 7/8 / 26S proteasome regulatory complex, non-ATPase subcomplex, Rpn1 subunit / RPN1, N-terminal / 26S proteasome non-ATPase regulatory subunit RPN1, C-terminal / RPN1 N-terminal domain / 26S proteasome non-ATPase regulatory subunit RPN1 C-terminal / : / 26S proteasome regulatory subunit 7, OB domain / : / : / : / PSMD12/CSN4, N-terminal / 26S proteasome regulatory subunit Rpn7/COP9 signalosome complex subunit 1 / 26S proteasome regulatory subunit Rpn7, N-terminal / 26S proteasome subunit RPN7 / 26S Proteasome non-ATPase regulatory subunit 12/COP9 signalosome complex subunit 4 / Proteasome/cyclosome repeat / Proteasome/cyclosome repeat / Ubiquitin-interacting motif. / PCI/PINT associated module / : / von Willebrand factor type A domain / Proteasomal ATPase OB C-terminal domain / Proteasomal ATPase OB C-terminal domain / HEAT repeats / CSN8/PSMD8/EIF3K / CSN8/PSMD8/EIF3K family / Proteasome subunit alpha 1 / Rpn11/EIF3F, C-terminal / Maintenance of mitochondrial structure and function / : / motif in proteasome subunits, Int-6, Nip-1 and TRIP-15 / Ubiquitin associated domain / PCI domain / Proteasome component (PCI) domain / PCI domain profile. / Ubiquitin-associated domain / Ubiquitin-associated domain (UBA) profile. / Ubiquitin interacting motif / Ubiquitin-interacting motif (UIM) domain profile. / Thioredoxin / UBA-like superfamily / JAB1/Mov34/MPN/PAD-1 ubiquitin protease / Proteasome subunit alpha6 / Proteasome subunit alpha5 / Thioredoxin, conserved site / Thioredoxin family active site. / Proteasome beta-type subunit, conserved site / Proteasome subunit A N-terminal signature / Proteasome alpha-type subunits signature. / Proteasome alpha-subunit, N-terminal domain / Proteasome subunit A N-terminal signature Add an annotation / von Willebrand factor (vWF) type A domain / VWFA domain profile. / : / Proteasome alpha-type subunit / Proteasome alpha-type subunit profile. / Proteasome subunit / Proteasome, subunit alpha/beta / von Willebrand factor, type A / AAA ATPase, AAA+ lid domain / AAA+ lid domain / JAB/MPN domain / JAB1/MPN/MOV34 metalloenzyme domain / ATPase, AAA-type, conserved site / AAA-protein family signature. / MPN domain
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / 26S proteasome non-ATPase regulatory subunit 11 / 26S proteasome non-ATPase regulatory subunit 12 / 26S proteasome non-ATPase regulatory subunit 14 / Proteasome subunit alpha type-7 / 26S proteasome non-ATPase regulatory subunit 3 / Thioredoxin-like protein 1 / 26S proteasome regulatory subunit 6A / Proteasome subunit alpha type-1 ...ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / 26S proteasome non-ATPase regulatory subunit 11 / 26S proteasome non-ATPase regulatory subunit 12 / 26S proteasome non-ATPase regulatory subunit 14 / Proteasome subunit alpha type-7 / 26S proteasome non-ATPase regulatory subunit 3 / Thioredoxin-like protein 1 / 26S proteasome regulatory subunit 6A / Proteasome subunit alpha type-1 / Proteasome subunit alpha type-2 / Proteasome subunit alpha type-3 / Proteasome subunit alpha type-4 / Proteasome subunit alpha type-5 / 26S proteasome regulatory subunit 7 / 26S proteasome regulatory subunit 6B / 26S proteasome non-ATPase regulatory subunit 8 / 26S proteasome non-ATPase regulatory subunit 7 / 26S proteasome non-ATPase regulatory subunit 4 / 26S proteasome complex subunit SEM1 / Proteasome subunit alpha type-6 / 26S proteasome regulatory subunit 4 / 26S proteasome regulatory subunit 8 / 26S proteasome regulatory subunit 10B / 26S proteasome non-ATPase regulatory subunit 2 / 26S proteasome non-ATPase regulatory subunit 6 / 26S proteasome non-ATPase regulatory subunit 1 / 26S proteasome non-ATPase regulatory subunit 13 / NEDD8 ultimate buster 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.47 Å
AuthorsArkinson, C. / Gee, C.L. / Martin, A.
Funding support United States, 1items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
CitationJournal: bioRxiv / Year: 2024
Title: Structural landscape of AAA+ ATPase motor states in the substrate-degrading human 26S proteasome reveals conformation-specific binding of TXNL1.
Authors: Connor Arkinson / Christine L Gee / Zeyuan Zhang / Ken C Dong / Andreas Martin /
Abstract: The 26S proteasome targets many cellular proteins for degradation during general homeostasis, protein quality control, and the regulation of vital processes. A broad range of proteasome-interacting ...The 26S proteasome targets many cellular proteins for degradation during general homeostasis, protein quality control, and the regulation of vital processes. A broad range of proteasome-interacting cofactors thereby modulates these functions and aids in substrate degradation. Here, we solved several high-resolution structures of the redox active cofactor TXNL1 bound to the human 26S proteasome at saturating and sub-stoichiometric concentrations by time resolved cryo-EM. We identified distinct binding modes of TXNL1 that depend on the proteasome conformational and ATPase motor states. Together with biophysical and biochemical experiments, our structural studies reveal that the resting-state proteasome prior to substrate engagement with the ATPase motor binds TXNL1 with low affinity and in variable positions on top of the Rpn11 deubiquitinase. In contrast, the actively degrading proteasome shows additional interactions leading to high-affinity TXNL1 binding, whereby TXNL1's C-terminal tail covers the catalytic groove of the Rpn11 deubiquitinase and coordinates the active-site Zn. Furthermore, these cryo-EM structures of the degrading proteasome capture the ATPase hexamer in all registers of spiral-staircase arrangements and thus visualize the complete ATP-hydrolysis cycle of the AAA+ motor, indicating temporally asymmetric hydrolysis and conformational changes in bursts during mechanical substrate unfolding and translocation. Remarkably, we catch the proteasome in the act of unfolding the beta-barrel mEos3.2 substrate while the ATPase hexamer is in a particular spiral staircase register. Our findings challenge current models for protein translocation through hexameric AAA+ motors and reveal how the proteasome uses its distinct but broad range of conformational states to coordinate cofactor binding and substrate processing.
History
DepositionNov 5, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 4, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: 26S proteasome regulatory subunit 7
B: 26S proteasome regulatory subunit 4
C: 26S protease regulatory subunit 8
D: 26S proteasome regulatory subunit 6B
E: 26S protease regulatory subunit 10B
F: 26S proteasome regulatory subunit 6A
G: Proteasome subunit alpha type-6
H: Proteasome subunit alpha type-2
I: Proteasome subunit alpha type-4
J: Proteasome subunit alpha type-7
K: Proteasome subunit alpha type-5
L: Proteasome subunit alpha type-1
M: Proteasome subunit alpha type-3
U: 26S proteasome non-ATPase regulatory subunit 1
V: 26S proteasome non-ATPase regulatory subunit 3
W: 26S proteasome non-ATPase regulatory subunit 12
X: 26S proteasome non-ATPase regulatory subunit 11
Y: 26S proteasome non-ATPase regulatory subunit 6
Z: 26S proteasome non-ATPase regulatory subunit 7
a: 26S proteasome non-ATPase regulatory subunit 13
b: 26S proteasome non-ATPase regulatory subunit 4
c: 26S proteasome non-ATPase regulatory subunit 14
d: 26S proteasome non-ATPase regulatory subunit 8
e: 26S proteasome complex subunit SEM1
f: 26S proteasome non-ATPase regulatory subunit 2
g: Isoform 2 of NEDD8 ultimate buster 1
u: Thioredoxin-like protein 1
v: substrate peptide
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,214,75540
Polymers1,211,68528
Non-polymers3,07012
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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26S proteasome regulatory subunit ... , 4 types, 4 molecules ABDF

#1: Protein 26S proteasome regulatory subunit 7 / 26S proteasome AAA-ATPase subunit RPT1 / Proteasome 26S subunit ATPase 2 / Protein MSS1


Mass: 48700.805 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P35998
#2: Protein 26S proteasome regulatory subunit 4 / P26s4 / 26S proteasome AAA-ATPase subunit RPT2 / Proteasome 26S subunit ATPase 1


Mass: 49260.504 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62191
#4: Protein 26S proteasome regulatory subunit 6B / 26S proteasome AAA-ATPase subunit RPT3 / MB67-interacting protein / MIP224 / Proteasome 26S subunit ...26S proteasome AAA-ATPase subunit RPT3 / MB67-interacting protein / MIP224 / Proteasome 26S subunit ATPase 4 / Tat-binding protein 7 / TBP-7


Mass: 47426.141 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P43686
#6: Protein 26S proteasome regulatory subunit 6A / 26S proteasome AAA-ATPase subunit RPT5 / Proteasome 26S subunit ATPase 3 / Proteasome subunit P50 / ...26S proteasome AAA-ATPase subunit RPT5 / Proteasome 26S subunit ATPase 3 / Proteasome subunit P50 / Tat-binding protein 1 / TBP-1


Mass: 49266.457 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P17980

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26S protease regulatory subunit ... , 2 types, 2 molecules CE

#3: Protein 26S protease regulatory subunit 8 / 26S proteasome AAA-ATPase subunit RPT6 / Proteasome 26S subunit ATPase 5 / Proteasome subunit p45 / ...26S proteasome AAA-ATPase subunit RPT6 / Proteasome 26S subunit ATPase 5 / Proteasome subunit p45 / Thyroid hormone receptor-interacting protein 1 / TRIP1 / p45/SUG


Mass: 45694.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62195
#5: Protein 26S protease regulatory subunit 10B / 26S proteasome AAA-ATPase subunit RPT4 / Proteasome 26S subunit ATPase 6 / Proteasome subunit p42


Mass: 44241.008 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P62333

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Proteasome subunit alpha type- ... , 7 types, 7 molecules GHIJKLM

#7: Protein Proteasome subunit alpha type-6 / 27 kDa prosomal protein / p27K / Macropain iota chain / Multicatalytic endopeptidase complex iota ...27 kDa prosomal protein / p27K / Macropain iota chain / Multicatalytic endopeptidase complex iota chain / Proteasome iota chain


Mass: 27432.459 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293
References: UniProt: P60900, proteasome endopeptidase complex
#8: Protein Proteasome subunit alpha type-2 / Macropain subunit C3 / Multicatalytic endopeptidase complex subunit C3 / Proteasome component C3


Mass: 25927.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293
References: UniProt: P25787, proteasome endopeptidase complex
#9: Protein Proteasome subunit alpha type-4 / Macropain subunit C9 / Multicatalytic endopeptidase complex subunit C9 / Proteasome component C9 / ...Macropain subunit C9 / Multicatalytic endopeptidase complex subunit C9 / Proteasome component C9 / Proteasome subunit L


Mass: 29525.842 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293
References: UniProt: P25789, proteasome endopeptidase complex
#10: Protein Proteasome subunit alpha type-7 / Proteasome subunit RC6-1 / Proteasome subunit XAPC7 / Proteasome subunit alpha-4 / alpha-4


Mass: 27929.891 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: O14818
#11: Protein Proteasome subunit alpha type-5 / Macropain zeta chain / Multicatalytic endopeptidase complex zeta chain / Proteasome subunit alpha-5 ...Macropain zeta chain / Multicatalytic endopeptidase complex zeta chain / Proteasome subunit alpha-5 / alpha-5 / Proteasome zeta chain


Mass: 26494.080 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P28066
#12: Protein Proteasome subunit alpha type-1 / 30 kDa prosomal protein / PROS-30 / Macropain subunit C2 / Multicatalytic endopeptidase complex ...30 kDa prosomal protein / PROS-30 / Macropain subunit C2 / Multicatalytic endopeptidase complex subunit C2 / Proteasome component C2 / Proteasome nu chain


Mass: 29595.627 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293
References: UniProt: P25786, proteasome endopeptidase complex
#13: Protein Proteasome subunit alpha type-3 / Macropain subunit C8 / Multicatalytic endopeptidase complex subunit C8 / Proteasome component C8


Mass: 28469.252 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293
References: UniProt: P25788, proteasome endopeptidase complex

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26S proteasome non-ATPase regulatory subunit ... , 11 types, 11 molecules UVWXYZabcdf

#14: Protein 26S proteasome non-ATPase regulatory subunit 1 / 26S proteasome regulatory subunit RPN2 / 26S proteasome regulatory subunit S1 / 26S proteasome subunit p112


Mass: 105958.234 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q99460
#15: Protein 26S proteasome non-ATPase regulatory subunit 3 / 26S proteasome regulatory subunit RPN3 / 26S proteasome regulatory subunit S3 / Proteasome subunit p58


Mass: 61066.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: O43242
#16: Protein 26S proteasome non-ATPase regulatory subunit 12 / 26S proteasome regulatory subunit RPN5 / 26S proteasome regulatory subunit p55


Mass: 52979.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: O00232
#17: Protein 26S proteasome non-ATPase regulatory subunit 11 / 26S proteasome regulatory subunit RPN6 / 26S proteasome regulatory subunit S9 / 26S proteasome ...26S proteasome regulatory subunit RPN6 / 26S proteasome regulatory subunit S9 / 26S proteasome regulatory subunit p44.5


Mass: 47526.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O00231
#18: Protein 26S proteasome non-ATPase regulatory subunit 6 / 26S proteasome regulatory subunit RPN7 / 26S proteasome regulatory subunit S10 / Breast cancer- ...26S proteasome regulatory subunit RPN7 / 26S proteasome regulatory subunit S10 / Breast cancer-associated protein SGA-113M / Phosphonoformate immuno-associated protein 4 / Proteasome regulatory particle subunit p44S10 / p42A


Mass: 45592.285 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q15008
#19: Protein 26S proteasome non-ATPase regulatory subunit 7 / 26S proteasome regulatory subunit RPN8 / 26S proteasome regulatory subunit S12 / Mov34 protein ...26S proteasome regulatory subunit RPN8 / 26S proteasome regulatory subunit S12 / Mov34 protein homolog / Proteasome subunit p40


Mass: 37086.441 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P51665
#20: Protein 26S proteasome non-ATPase regulatory subunit 13 / 26S proteasome regulatory subunit RPN9 / 26S proteasome regulatory subunit S11 / 26S proteasome ...26S proteasome regulatory subunit RPN9 / 26S proteasome regulatory subunit S11 / 26S proteasome regulatory subunit p40.5


Mass: 42995.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q9UNM6
#21: Protein 26S proteasome non-ATPase regulatory subunit 4 / 26S proteasome regulatory subunit RPN10 / 26S proteasome regulatory subunit S5A / Antisecretory ...26S proteasome regulatory subunit RPN10 / 26S proteasome regulatory subunit S5A / Antisecretory factor 1 / ASF / Multiubiquitin chain-binding protein


Mass: 40781.590 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P55036
#22: Protein 26S proteasome non-ATPase regulatory subunit 14


Mass: 46940.898 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line: HEK293 / Gene: PSMD14 / Cell line (production host): HEK293-httb / Production host: Homo sapiens (human) / References: UniProt: O00487
#23: Protein 26S proteasome non-ATPase regulatory subunit 8 / 26S proteasome regulatory subunit RPN12 / 26S proteasome regulatory subunit S14 / p31


Mass: 39667.871 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P48556
#25: Protein 26S proteasome non-ATPase regulatory subunit 2 / 26S proteasome regulatory subunit RPN1 / 26S proteasome regulatory subunit S2 / 26S proteasome ...26S proteasome regulatory subunit RPN1 / 26S proteasome regulatory subunit S2 / 26S proteasome subunit p97 / Protein 55.11 / Tumor necrosis factor type 1 receptor-associated protein 2


Mass: 100313.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q13200

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Protein , 3 types, 3 molecules egu

#24: Protein 26S proteasome complex subunit SEM1 / 26S proteasome complex subunit DSS1 / Deleted in split hand/split foot protein 1 / Split hand/foot ...26S proteasome complex subunit DSS1 / Deleted in split hand/split foot protein 1 / Split hand/foot deleted protein 1 / Split hand/foot malformation type 1 protein


Mass: 8284.611 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P60896
#26: Protein Isoform 2 of NEDD8 ultimate buster 1 / Negative regulator of ubiquitin-like proteins 1 / Renal carcinoma antigen NY-REN-18


Mass: 69218.562 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: NUB1, NYREN18 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q9Y5A7
#27: Protein Thioredoxin-like protein 1 / 32 kDa thioredoxin-related protein


Mass: 32284.229 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TXNL1, TRP32, TXL, TXNL / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: O43396

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Protein/peptide , 1 types, 1 molecules v

#28: Protein/peptide substrate peptide


Mass: 1025.246 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)

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Non-polymers , 4 types, 12 molecules

#29: Chemical
ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Feature type: SUBJECT OF INVESTIGATION / Comment: ATP, energy-carrying molecule*YM
#30: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
#31: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Feature type: SUBJECT OF INVESTIGATION / Comment: ADP, energy-carrying molecule*YM
#32: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Human 26S proteasome complexed with Nub1, Fat10 and TXNL1
Type: COMPLEX / Entity ID: #1-#28 / Source: MULTIPLE SOURCES
Molecular weightValue: 2.6 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
Details: 30 mM HEPES pH7.4, 25 mM NaCl, 25 mM KCl, 3% (v/v) glycerol, 5 mM MgCl2 2 mM ATP and 0.5 mM TCEP.
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: 25 mA / Grid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: UltrAuFoil R2/2
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 285 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1700 nm / Nominal defocus min: 500 nm / Alignment procedure: BASIC
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.47 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 19309 / Symmetry type: POINT

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