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- PDB-9pro: Human 19S proteasome bound to TXNL1 PITH domain and PSMD5 -

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Basic information

Entry
Database: PDB / ID: 9pro
TitleHuman 19S proteasome bound to TXNL1 PITH domain and PSMD5
Components
  • DSS1
  • PSMD5
  • RPN1
  • RPN10
  • RPN11
  • RPN12
  • RPN2
  • RPN3
  • RPN5
  • RPN6
  • RPN7
  • RPN8
  • RPN9
  • RPT1
  • RPT2
  • RPT3
  • RPT4
  • RPT5
  • RPT6
  • TXNL1
KeywordsHYDROLASE / Proteasome / 19S / RP / TXNL1 / PSMD5
Function / homology
Function and homology information


proteasome regulatory particle assembly / disulfide oxidoreductase activity / positive regulation of inclusion body assembly / thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / proteasome accessory complex / integrator complex ...proteasome regulatory particle assembly / disulfide oxidoreductase activity / positive regulation of inclusion body assembly / thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / proteasome accessory complex / integrator complex / proteasome regulatory particle / cytosolic proteasome complex / positive regulation of proteasomal protein catabolic process / transcription factor binding / proteasome-activating activity / RND1 GTPase cycle / RND2 GTPase cycle / RND3 GTPase cycle / proteasome regulatory particle, lid subcomplex / proteasome regulatory particle, base subcomplex / negative regulation of programmed cell death / RHOBTB1 GTPase cycle / protein K63-linked deubiquitination / RHOV GTPase cycle / metal-dependent deubiquitinase activity / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / cellular response to type I interferon / Cross-presentation of soluble exogenous antigens (endosomes) / retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum / Somitogenesis / K63-linked deubiquitinase activity / 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) / Resolution of D-loop Structures through Holliday Junction Intermediates / proteasome binding / RHOU GTPase cycle / Impaired BRCA2 binding to RAD51 / protein-disulfide reductase activity / positive regulation of RNA polymerase II transcription preinitiation complex assembly / general transcription initiation factor binding / Presynaptic phase of homologous DNA pairing and strand exchange / proteasome storage granule / polyubiquitin modification-dependent protein binding / protein deubiquitination / RHOBTB2 GTPase cycle / endopeptidase activator activity / proteasome assembly / mRNA export from nucleus / SARS-CoV-1 targets host intracellular signalling and regulatory pathways / stem cell differentiation / regulation of macroautophagy / proteasome complex / enzyme regulator activity / ERAD pathway / inclusion body / TBP-class protein binding / regulation of proteasomal protein catabolic process / Regulation of activated PAK-2p34 by proteasome mediated degradation / ubiquitin binding / Autodegradation of Cdh1 by Cdh1:APC/C / proteasomal protein catabolic process / 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 / AUF1 (hnRNP D0) binds and destabilizes mRNA / TNFR2 non-canonical NF-kB pathway / Assembly of the pre-replicative complex / P-body / Vpu mediated degradation of CD4 / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Dectin-1 mediated noncanonical NF-kB signaling / Degradation of DVL / Degradation of AXIN / Degradation of CRY and PER proteins / Hh mutants are degraded by ERAD / Activation of NF-kappaB in B cells / G2/M Checkpoints / Degradation of GLI1 by the proteasome / Hedgehog ligand biogenesis / Autodegradation of the E3 ubiquitin ligase COP1 / Regulation of RUNX3 expression and activity / Defective CFTR causes cystic fibrosis / double-strand break repair via homologous recombination / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / AMPK-induced ERAD and lysosome mediated degradation of PD-L1(CD274) / Hedgehog 'on' state / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / Vif-mediated degradation of APOBEC3G / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / double-strand break repair via nonhomologous end joining
Similarity search - Function
26S proteasome non-ATPase regulatory subunit 5 / Proteasome non-ATPase 26S subunit / PITH domain / PITH domain superfamily / PITH domain / PITH domain profile. / : / Ubiquitin interaction motif / : / : ...26S proteasome non-ATPase regulatory subunit 5 / Proteasome non-ATPase 26S subunit / PITH domain / PITH domain superfamily / PITH domain / PITH domain profile. / : / Ubiquitin interaction motif / : / : / 26S proteasome regulatory subunit RPN7/PSMD6 C-terminal helix / PSMD3-like, N-terminal TPR repeats / 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 / Proteasome subunit Rpn10 / 26S Proteasome non-ATPase regulatory subunit 7/8 / : / 26S proteasome subunit RPN2, N-terminal domain / 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 / : / 26S proteasome regulatory subunit RPN11 C-terminal domain / 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 / DSS1/SEM1 / DSS1/SEM1 family / DSS1_SEM1 / Proteasome/cyclosome repeat / Ubiquitin-interacting motif. / Proteasome/cyclosome repeat / : / 26S proteasome regulatory subunit 7, OB domain / von Willebrand factor type A 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 / : / PCI/PINT associated module / HEAT repeats / Proteasomal ATPase OB C-terminal domain / Proteasomal ATPase OB C-terminal domain / CSN8/PSMD8/EIF3K / CSN8/PSMD8/EIF3K family / Rpn11/EIF3F, C-terminal / Maintenance of mitochondrial structure and function / motif in proteasome subunits, Int-6, Nip-1 and TRIP-15 / : / Thioredoxin / PCI domain / Proteasome component (PCI) domain / PCI domain profile. / Ubiquitin interacting motif / Ubiquitin-interacting motif (UIM) domain profile. / JAB1/Mov34/MPN/PAD-1 ubiquitin protease / Thioredoxin family active site. / Thioredoxin, conserved site / VWFA domain profile. / von Willebrand factor (vWF) type A domain / von Willebrand factor, type A / Thioredoxin domain / JAB/MPN domain / JAB1/MPN/MOV34 metalloenzyme domain / MPN domain / MPN domain profile. / AAA ATPase, AAA+ lid domain / AAA+ lid domain / ATPase, AAA-type, conserved site / AAA-protein family signature. / von Willebrand factor A-like domain superfamily / Galactose-binding-like domain superfamily / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / Armadillo-like helical / Tetratricopeptide-like helical domain superfamily / Thioredoxin-like superfamily / Armadillo-type fold / Winged helix DNA-binding domain superfamily / Winged helix-like DNA-binding domain superfamily / Nucleic acid-binding, OB-fold / ATPases associated with a variety of cellular activities / AAA+ ATPase domain
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / 26S proteasome non-ATPase regulatory subunit 11 / 26S proteasome non-ATPase regulatory subunit 12 / Ubiquitin C-terminal hydrolase PSMD14 / 26S proteasome non-ATPase regulatory subunit 3 / Thioredoxin-like protein 1 / 26S proteasome regulatory subunit 6A / 26S proteasome regulatory subunit 7 / 26S proteasome regulatory subunit 6B ...ADENOSINE-5'-DIPHOSPHATE / PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / 26S proteasome non-ATPase regulatory subunit 11 / 26S proteasome non-ATPase regulatory subunit 12 / Ubiquitin C-terminal hydrolase PSMD14 / 26S proteasome non-ATPase regulatory subunit 3 / Thioredoxin-like protein 1 / 26S proteasome regulatory subunit 6A / 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 / 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 5 / 26S proteasome non-ATPase regulatory subunit 1 / 26S proteasome non-ATPase regulatory subunit 13
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.07 Å
AuthorsChen, X. / Negi, H. / Walters, K.J.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI)1 ZIABC011490 United States
CitationJournal: Mol Cell / Year: 2026
Title: Structures of dynamic interactors at native proteasomes by PhIX-MS and cryo-electron microscopy.
Authors: Kitaik Lee / Hitendra Negi / Xiang Chen / Katerina Atallah-Yunes / Sophia Truslow / Rithik E Castelino / Mary R Guest / Anthony M Ciancone / Xiuxiu Lu / Sergey G Tarasov / Raj Chari / Kylie ...Authors: Kitaik Lee / Hitendra Negi / Xiang Chen / Katerina Atallah-Yunes / Sophia Truslow / Rithik E Castelino / Mary R Guest / Anthony M Ciancone / Xiuxiu Lu / Sergey G Tarasov / Raj Chari / Kylie J Walters / Francis J O'Reilly /
Abstract: Molecular machines rely on dynamic, low-affinity interactions to perform their functional roles. We developed PhIX-MS (photo-induced in situ crosslinking-mass spectrometry), a structural proteomics ...Molecular machines rely on dynamic, low-affinity interactions to perform their functional roles. We developed PhIX-MS (photo-induced in situ crosslinking-mass spectrometry), a structural proteomics workflow to capture topological information for such transient interactions in cells by UV-activated crosslinking. Applying PhIX-MS with cryo-electron microscopy (cryo-EM) to proteasomes, we mapped the redox sensor TXNL1 at the proteasome regulatory particle (RP), including its dynamic thioredoxin-like domain near RPN2/PSMD1 and RPN13/ADRM1, where it is ideal for reducing substrates prior to proteolysis. RPs without the proteolytic core particle (CP) were structurally resolved while bound to TXNL1 and/or the chaperone PSMD5/S5b, which inserts its C terminus into the ATPase pore, causing extensive structural rearrangements. Additionally, PhIX-MS and AlphaFold identified the ubiquitin ligase UBE3C/Hul5 at RPN2, RPN3, and a dynamic RPN10 region, tethering UBE3C above the substrate entry channel. Our integrative approach enables the localization of native, low-affinity protein interactions and is broadly applicable to dynamic macromolecular assemblies.
History
DepositionJul 24, 2025Deposition site: RCSB / Processing site: RCSB
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: RPT1
B: RPT2
C: RPT6
D: RPT3
E: RPT4
F: RPT5
U: RPN2
V: RPN3
W: RPN5
X: RPN6
Y: RPN7
Z: RPN8
a: RPN9
b: RPN10
c: RPN11
d: RPN12
e: DSS1
f: RPN1
g: TXNL1
z: PSMD5
hetero molecules


Theoretical massNumber of molelcules
Total (without water)992,56229
Polymers989,99920
Non-polymers2,5629
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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Protein , 20 types, 20 molecules ABCDEFUVWXYZabcdefgz

#1: Protein RPT1 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC2, MSS1 / Production host: Homo sapiens (human) / References: UniProt: P35998
#2: Protein RPT2 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC1 / Production host: Homo sapiens (human) / References: UniProt: P62191
#3: Protein RPT6 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC5, SUG1 / Production host: Homo sapiens (human) / References: UniProt: P62195
#4: Protein RPT3 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC4, MIP224, TBP7 / Production host: Homo sapiens (human) / References: UniProt: P43686
#5: Protein RPT4 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC6, SUG2 / Production host: Homo sapiens (human) / References: UniProt: P62333
#6: Protein RPT5 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC3, TBP1 / Production host: Homo sapiens (human) / References: UniProt: P17980
#7: Protein RPN2 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD1 / Production host: Homo sapiens (human) / References: UniProt: Q99460
#8: Protein RPN3 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD3 / Production host: Homo sapiens (human) / References: UniProt: O43242
#9: Protein RPN5 / 26S proteasome regulatory subunit RPN5 / 26S proteasome regulatory subunit p55


Mass: 52979.359 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD12 / Production host: Homo sapiens (human) / References: UniProt: O00232
#10: Protein RPN6 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD11 / Production host: Homo sapiens (human) / References: UniProt: O00231
#11: Protein RPN7 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD6, KIAA0107, PFAAP4 / Production host: Homo sapiens (human) / References: UniProt: Q15008
#12: Protein RPN8 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD7, MOV34L / Production host: Homo sapiens (human) / References: UniProt: P51665
#13: Protein RPN9 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD13 / Production host: Homo sapiens (human) / References: UniProt: Q9UNM6
#14: Protein RPN10 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD4, MCB1 / Production host: Homo sapiens (human) / References: UniProt: P55036
#15: Protein RPN11 / 26S proteasome regulatory subunit RPN11 / 26S proteasome-associated PAD1 homolog 1


Mass: 34620.023 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD14, POH1 / Production host: Homo sapiens (human)
References: UniProt: O00487, Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases
#16: Protein RPN12 / 26S proteasome regulatory subunit RPN12 / 26S proteasome regulatory subunit S14 / p31


Mass: 39667.871 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD8 / Production host: Homo sapiens (human) / References: UniProt: P48556
#17: Protein DSS1 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SEM1, C7orf76, DSS1, SHFDG1, SHFM1 / Production host: Homo sapiens (human) / References: UniProt: P60896
#18: Protein RPN1 / 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD2, TRAP2 / Production host: Homo sapiens (human) / References: UniProt: Q13200
#19: Protein TXNL1 / 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: Homo sapiens (human) / References: UniProt: O43396
#20: Protein PSMD5 / 26S protease subunit S5 basic / 26S proteasome subunit S5B


Mass: 56253.441 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMD5, KIAA0072 / Production host: Homo sapiens (human) / References: UniProt: Q16401

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Non-polymers , 4 types, 9 molecules

#21: 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
#22: Chemical ChemComp-AGS / PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / ATP-GAMMA-S / ADENOSINE 5'-(3-THIOTRIPHOSPHATE) / ADENOSINE 5'-(GAMMA-THIOTRIPHOSPHATE) / ADENOSINE-5'-DIPHOSPHATE MONOTHIOPHOSPHATE


Mass: 523.247 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C10H16N5O12P3S / Feature type: SUBJECT OF INVESTIGATION / Comment: ATP-gamma-S, energy-carrying molecule analogue*YM
#23: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
#24: 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 proteasome from HCT116 cells / Type: COMPLEX / Entity ID: #1-#20 / Source: RECOMBINANT
Molecular weightValue: 1 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
Details: 50 mM Tris [pH7.5], 50 mM NaCl, 1.5 mM ATP-gamma-S, 5 mM MgCl2 and 2 mM DTT
Buffer component
IDConc.NameFormulaBuffer-ID
150 mMTris(hydroxymethyl)aminomethane hydrochlorideC4H12NO3Cl1
250 mMSodium ChlorideNaCl1
31.5 mMATP-gamma-SC10H12N5O12P3S1
45 mMMagnesium chlorideMgCl21
52 mMDithiothreitol(CH(OH)CH2SH)21
SpecimenConc.: 0.75 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Details: Quantifoil copper R 1.2/1.3 holey carbon 300 mesh grids (#Q3100CR1.3; Electron Microscopy Sciences).
Specimen supportDetails: 25 mA / Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: LEICA EM GP / Cryogen name: ETHANE / Humidity: 85 % / Chamber temperature: 295.15 K

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 100000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 2.5 sec. / Electron dose: 55.6 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of real images: 40
EM imaging opticsEnergyfilter name: GIF Bioquantum
Image scansWidth: 5760 / Height: 4092

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Processing

EM software
IDNameVersionCategory
1cryoSPARC4.5.3particle selection
2EPUimage acquisition
4cryoSPARC4.5.3CTF correction
7UCSF ChimeraX1.9model fitting
8Coot0.9.8.93 ELmodel fitting
9ISOLDE1.9model fitting
11cryoSPARC4.5.3initial Euler assignment
12cryoSPARC4.5.3final Euler assignment
13cryoSPARC4.5.3classification
14cryoSPARC4.5.33D reconstruction
15PHENIX1.21.2model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1504498
3D reconstructionResolution: 4.07 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 54253 / Symmetry type: POINT
Atomic model buildingB value: 89 / Protocol: RIGID BODY FIT / Space: REAL / Target criteria: Cross-correlation coefficient
Atomic model building

3D fitting-ID: 1

IDPDB-IDPdb chain-IDAccession codeChain-IDInitial refinement model-IDSource nameType
17WSI

7wsi

A7WSIA1PDBexperimental model
27WSI

7wsi

B7WSIB1PDBexperimental model
37WSI

7wsi

C7WSIC1PDBexperimental model
47WSI

7wsi

D7WSID1PDBexperimental model
57WSI

7wsi

E7WSIE1PDBexperimental model
67WSI

7wsi

F7WSIF1PDBexperimental model
77WSI

7wsi

U7WSIU1PDBexperimental model
87WSI

7wsi

V7WSIV1PDBexperimental model
97WSI

7wsi

W7WSIW1PDBexperimental model
107WSI

7wsi

X7WSIX1PDBexperimental model
117WSI

7wsi

Y7WSIY1PDBexperimental model
127WSI

7wsi

Z7WSIZ1PDBexperimental model
137WSI

7wsi

a7WSIa1PDBexperimental model
147WSI

7wsi

b7WSIb1PDBexperimental model
157WSI

7wsi

c7WSIc1PDBexperimental model
167WSI

7wsi

d7WSId1PDBexperimental model
177WSI

7wsi

e7WSIe1PDBexperimental model
187WSI

7wsi

f7WSIf1PDBexperimental model
191WWY

1wwy

g1WWYg2PDBexperimental model
20zAlphaFoldin silico model

+
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