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- PDB-9vuf: Structure of human proteasome ATPase-CP intermediate assembles wi... -

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Entry
Database: PDB / ID: 9vuf
TitleStructure of human proteasome ATPase-CP intermediate assembles with 90min rapaprotin addition
Components
  • (26S proteasome regulatory subunit ...) x 6
  • (Proteasome subunit alpha type- ...) x 6
  • (Proteasome subunit beta type- ...) x 7
  • Isoform Long of Proteasome subunit alpha type-1
KeywordsHYDROLASE / Proteasome / Rapaprotin / AAA-ATPase / Dissociation
Function / homology
Function and homology information


thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / positive regulation of inclusion body assembly / proteasome accessory complex / purine ribonucleoside triphosphate binding / cytosolic proteasome complex / positive regulation of proteasomal protein catabolic process / proteasome-activating activity / Antigen processing: Ub, ATP-independent proteasomal degradation ...thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / positive regulation of inclusion body assembly / proteasome accessory complex / purine ribonucleoside triphosphate binding / cytosolic proteasome complex / positive regulation of proteasomal protein catabolic process / proteasome-activating activity / Antigen processing: Ub, ATP-independent proteasomal degradation / proteasome regulatory particle, base subcomplex / sperm glycocalyx / negative regulation of programmed cell death / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / perinuclear theca / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / Somitogenesis / transcription factor binding / myofibril / proteasomal ubiquitin-independent protein catabolic process / sperm head-tail coupling apparatus / positive regulation of RNA polymerase II transcription preinitiation complex assembly / general transcription initiation factor binding / blastocyst development / immune system process / proteasome endopeptidase complex / NF-kappaB binding / proteasome core complex, beta-subunit complex / threonine-type endopeptidase activity / proteasome assembly / proteasome core complex, alpha-subunit complex / SARS-CoV-1 targets host intracellular signalling and regulatory pathways / ERAD pathway / inclusion body / TBP-class protein binding / : / ciliary tip / proteasome complex / sarcomere / Regulation of activated PAK-2p34 by proteasome mediated degradation / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / centriole / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / Asymmetric localization of PCP proteins / sperm end piece / negative regulation of inflammatory response to antigenic stimulus / Ubiquitin-dependent degradation of Cyclin D / P-body / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / AUF1 (hnRNP D0) binds and destabilizes mRNA / lipopolysaccharide binding / TNFR2 non-canonical NF-kB pathway / Assembly of the pre-replicative complex / 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 / Negative regulation of NOTCH4 signaling / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / Hedgehog 'on' state / 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 / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / MAPK6/MAPK4 signaling / Degradation of CDH1 / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / CDK-mediated phosphorylation and removal of Cdc6 / ABC-family protein mediated transport / CLEC7A (Dectin-1) signaling / SCF(Skp2)-mediated degradation of p27/p21 / FCERI mediated NF-kB activation / response to virus / nuclear matrix / Regulation of expression of SLITs and ROBOs / Regulation of PTEN stability and activity / Interleukin-1 signaling / Orc1 removal from chromatin / cytoplasmic ribonucleoprotein granule / osteoblast differentiation / Regulation of RUNX2 expression and activity / Regulation of RAS by GAPs / The role of GTSE1 in G2/M progression after G2 checkpoint
Similarity search - Function
: / 26S proteasome regulatory subunit 7, OB domain / : / Proteasomal ATPase OB C-terminal domain / Proteasomal ATPase OB C-terminal domain / Proteasome subunit alpha 1 / Proteasome beta subunit, C-terminal / Proteasome beta subunits C terminal / Proteasome subunit beta 4 / Proteasome subunit beta 2 ...: / 26S proteasome regulatory subunit 7, OB domain / : / Proteasomal ATPase OB C-terminal domain / Proteasomal ATPase OB C-terminal domain / Proteasome subunit alpha 1 / Proteasome beta subunit, C-terminal / Proteasome beta subunits C terminal / Proteasome subunit beta 4 / Proteasome subunit beta 2 / Proteasome beta 3 subunit / Proteasome subunit alpha5 / Proteasome subunit alpha6 / Proteasome beta-type subunits signature. / Peptidase T1A, proteasome beta-subunit / 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 / Proteasome B-type subunit / Proteasome beta-type subunit profile. / : / Proteasome alpha-type subunit / Proteasome alpha-type subunit profile. / Proteasome subunit / Proteasome, subunit alpha/beta / AAA ATPase, AAA+ lid domain / AAA+ lid domain / ATPase, AAA-type, conserved site / AAA-protein family signature. / Nucleophile aminohydrolases, N-terminal / ATPase family associated with various cellular activities (AAA) / ATPase, AAA-type, core / Nucleic acid-binding, OB-fold / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / Proteasome subunit alpha type-7 / 26S proteasome regulatory subunit 6A / Proteasome subunit beta type-1 / 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 ...ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / Proteasome subunit alpha type-7 / 26S proteasome regulatory subunit 6A / Proteasome subunit beta type-1 / 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 / Proteasome subunit beta type-4 / Proteasome subunit beta type-6 / Proteasome subunit beta type-5 / 26S proteasome regulatory subunit 7 / 26S proteasome regulatory subunit 6B / Proteasome subunit beta type-3 / Proteasome subunit beta type-2 / Proteasome subunit alpha type-6 / 26S proteasome regulatory subunit 4 / 26S proteasome regulatory subunit 8 / 26S proteasome regulatory subunit 10B / Proteasome subunit beta type-7
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsWang, W.L. / Yin, D.Y. / Mao, Y.D.
Funding support United States, China, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM145793 United States
National Natural Science Foundation of China (NSFC)12125401, 12090054 and 11774012 China
CitationJournal: Angew Chem Int Ed Engl / Year: 2025
Title: Rapaprotin, an Endopeptidase-Activated Proteasome Inhibitor that Induces 26S Disassembly.
Authors: Hanjing Peng / Zufeng Guo / Wei Li Wang / Deyao Yin / Shitao Zou / Thomas Asbell / Brett R Ullman / Maya Thakar / Feiran Zhang / Sam Y Hong / A V Subba Rao / Kunyu Wang / Shuwen Zhang / ...Authors: Hanjing Peng / Zufeng Guo / Wei Li Wang / Deyao Yin / Shitao Zou / Thomas Asbell / Brett R Ullman / Maya Thakar / Feiran Zhang / Sam Y Hong / A V Subba Rao / Kunyu Wang / Shuwen Zhang / Zhaolong Wu / Xuemei Li / Aidan A Kendra / Seth S Margolis / William H Matsui / Christian B Gocke / Youdong Mao / Jun O Liu /
Abstract: The 19S regulatory particle (RP) associates with the 20S core particle (CP) to form the 26S proteasome, an evolutionarily conserved holoenzyme that plays key roles in both physiological and ...The 19S regulatory particle (RP) associates with the 20S core particle (CP) to form the 26S proteasome, an evolutionarily conserved holoenzyme that plays key roles in both physiological and pathological processes. Proteasome inhibitors that target the catalytic subunits within the 20S have proven to be valuable research tools and therapeutics for various cancers. Herein we report the discovery of rapaprotin, a 26S proteasome assembly inhibitor from our natural product-inspired hybrid macrocycle rapafucin library. Rapaprotin induces apoptosis in both myeloma and leukemia cell lines. Genome-wide CRISPR-Cas9 screen identified a cytosolic enzyme, prolyl endopeptidase (PREP) that is required for the pro-apoptotic activity of rapaprotin. Further mechanistic studies revealed that rapaprotin acts as a molecular transformer, changing from an inactive cyclic form into an active linear form, rapaprotin-L, upon PREP cleavage, to block 26S proteasome activity. Time-resolved cryogenic electron microscopy (cryo-EM) revealed that rapaprotin-L induces dissociation of the 19S RP from the 26S holoenzyme, which was verified in cells. Furthermore, rapaprotin exhibits a marked synergistic effect with FDA-approved proteasome inhibitors and resensitizes drug-resistant multiple myeloma cells from patients to bortezomib. Taken together, these results suggest that rapaprotin is a new chemical tool to probe the dynamics of the 26S proteasome assembly and a promising anticancer drug lead.
History
DepositionJul 13, 2025Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Jun 17, 2026Provider: repository / Type: Initial release
Revision 1.0Jun 17, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 17, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 17, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 17, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 17, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 26S proteasome regulatory subunit 7
B: 26S proteasome regulatory subunit 4
C: 26S proteasome regulatory subunit 8
D: 26S proteasome regulatory subunit 6B
E: 26S proteasome 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: Isoform Long of Proteasome subunit alpha type-1
M: Proteasome subunit alpha type-3
N: Proteasome subunit beta type-6
O: Proteasome subunit beta type-7
P: Proteasome subunit beta type-3
Q: Proteasome subunit beta type-2
R: Proteasome subunit beta type-5
S: Proteasome subunit beta type-1
T: Proteasome subunit beta type-4
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: Isoform Long of Proteasome subunit alpha type-1
m: Proteasome subunit alpha type-3
n: Proteasome subunit beta type-6
o: Proteasome subunit beta type-7
p: Proteasome subunit beta type-3
q: Proteasome subunit beta type-2
r: Proteasome subunit beta type-5
s: Proteasome subunit beta type-1
t: Proteasome subunit beta type-4
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,050,43540
Polymers1,047,55234
Non-polymers2,8836
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 ... , 6 types, 6 molecules ABCDEF

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


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 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC1 / Production host: Homo sapiens (human) / References: UniProt: P62191
#3: Protein 26S proteasome 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC5, SUG1 / Production host: Homo sapiens (human) / References: UniProt: P62195
#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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC4, MIP224, TBP7 / Production host: Homo sapiens (human) / References: UniProt: P43686
#5: Protein 26S proteasome 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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC6, SUG2 / Production host: Homo sapiens (human) / References: UniProt: P62333
#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 genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMC3, TBP1 / Production host: Homo sapiens (human) / References: UniProt: P17980

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Proteasome subunit alpha type- ... , 6 types, 12 molecules GgHhIiJjKkMm

#7: Protein Proteasome subunit alpha type-6 / 27 kDa prosomal protein / PROS-27 / p27K / Macropain iota chain / Multicatalytic endopeptidase ...27 kDa prosomal protein / PROS-27 / p27K / Macropain iota chain / Multicatalytic endopeptidase complex iota chain / Proteasome iota chain / Proteasome subunit alpha-1 / alpha-1


Mass: 27432.459 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA6, PROS27 / Production host: Homo sapiens (human) / References: UniProt: P60900
#8: Protein Proteasome subunit alpha type-2 / Macropain subunit C3 / Multicatalytic endopeptidase complex subunit C3 / Proteasome component C3 / ...Macropain subunit C3 / Multicatalytic endopeptidase complex subunit C3 / Proteasome component C3 / Proteasome subunit alpha-2 / alpha-2


Mass: 25927.535 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA2, HC3, PSC3 / Production host: Homo sapiens (human) / References: UniProt: P25787
#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 / Proteasome subunit alpha-3 / alpha-3


Mass: 29525.842 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA4, HC9, PSC9 / Production host: Homo sapiens (human) / References: UniProt: P25789
#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.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA7, HSPC / Production host: Homo sapiens (human) / 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: 26435.977 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA5 / Production host: Homo sapiens (human) / References: UniProt: P28066
#13: Protein Proteasome subunit alpha type-3 / Macropain subunit C8 / Multicatalytic endopeptidase complex subunit C8 / Proteasome component C8 / ...Macropain subunit C8 / Multicatalytic endopeptidase complex subunit C8 / Proteasome component C8 / Proteasome subunit alpha-7 / alpha-7


Mass: 28469.252 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA3, HC8, PSC8 / Production host: Homo sapiens (human) / References: UniProt: P25788

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Protein , 1 types, 2 molecules Ll

#12: Protein Isoform Long of Proteasome subunit alpha type-1 / Proteasome subunit alpha type-1 / 30 kDa prosomal protein / PROS-30 / Macropain subunit C2 / ...Proteasome subunit alpha type-1 / 30 kDa prosomal protein / PROS-30 / Macropain subunit C2 / Multicatalytic endopeptidase complex subunit C2 / Proteasome component C2 / Proteasome nu chain / Proteasome subunit alpha-6 / alpha-6


Mass: 30281.473 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA1, HC2, NU, PROS30, PSC2 / Production host: Homo sapiens (human) / References: UniProt: P25786

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Proteasome subunit beta type- ... , 7 types, 14 molecules NnOoPpQqRrSsTt

#14: Protein Proteasome subunit beta type-6 / Macropain delta chain / Multicatalytic endopeptidase complex delta chain / Proteasome delta chain / ...Macropain delta chain / Multicatalytic endopeptidase complex delta chain / Proteasome delta chain / Proteasome subunit Y / Proteasome subunit beta-1 / beta-1


Mass: 25377.652 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB6, LMPY, Y / Production host: Homo sapiens (human)
References: UniProt: P28072, proteasome endopeptidase complex
#15: Protein Proteasome subunit beta type-7 / Macropain chain Z / Multicatalytic endopeptidase complex chain Z / Proteasome subunit Z / ...Macropain chain Z / Multicatalytic endopeptidase complex chain Z / Proteasome subunit Z / Proteasome subunit beta-2 / beta-2


Mass: 30000.418 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB7, Z / Production host: Homo sapiens (human)
References: UniProt: Q99436, proteasome endopeptidase complex
#16: Protein Proteasome subunit beta type-3 / Proteasome chain 13 / Proteasome component C10-II / Proteasome subunit beta-3 / beta-3 / Proteasome ...Proteasome chain 13 / Proteasome component C10-II / Proteasome subunit beta-3 / beta-3 / Proteasome theta chain


Mass: 22972.896 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB3 / Production host: Homo sapiens (human) / References: UniProt: P49720
#17: Protein Proteasome subunit beta type-2 / Macropain subunit C7-I / Multicatalytic endopeptidase complex subunit C7-I / Proteasome component ...Macropain subunit C7-I / Multicatalytic endopeptidase complex subunit C7-I / Proteasome component C7-I / Proteasome subunit beta-4 / beta-4


Mass: 22864.277 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB2 / Production host: Homo sapiens (human) / References: UniProt: P49721
#18: Protein Proteasome subunit beta type-5 / Macropain epsilon chain / Multicatalytic endopeptidase complex epsilon chain / Proteasome chain 6 / ...Macropain epsilon chain / Multicatalytic endopeptidase complex epsilon chain / Proteasome chain 6 / Proteasome epsilon chain / Proteasome subunit MB1 / Proteasome subunit X / Proteasome subunit beta-5 / beta-5


Mass: 28510.248 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB5, LMPX, MB1, X / Production host: Homo sapiens (human)
References: UniProt: P28074, proteasome endopeptidase complex
#19: Protein Proteasome subunit beta type-1 / Macropain subunit C5 / Multicatalytic endopeptidase complex subunit C5 / Proteasome component C5 / ...Macropain subunit C5 / Multicatalytic endopeptidase complex subunit C5 / Proteasome component C5 / Proteasome gamma chain / Proteasome subunit beta-6 / beta-6


Mass: 26522.396 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB1, PSC5 / Production host: Homo sapiens (human) / References: UniProt: P20618
#20: Protein Proteasome subunit beta type-4 / 26 kDa prosomal protein / HsBPROS26 / PROS-26 / Macropain beta chain / Multicatalytic endopeptidase ...26 kDa prosomal protein / HsBPROS26 / PROS-26 / Macropain beta chain / Multicatalytic endopeptidase complex beta chain / Proteasome beta chain / Proteasome chain 3 / HsN3 / Proteasome subunit beta-7 / beta-7


Mass: 29231.178 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB4, PROS26 / Production host: Homo sapiens (human) / References: UniProt: P28070

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Non-polymers , 2 types, 6 molecules

#21: 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
#22: 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

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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: 26S proteasome / Type: COMPLEX / Entity ID: #1-#20 / Source: RECOMBINANT
Molecular weightValue: 1.6 MDa / Experimental value: YES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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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: 5000 nm / Nominal defocus min: 400 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM software
IDNameVersionCategory
1RELIONparticle selection
2PHENIX1.20.1_4487model refinement
13RELION3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 88200 / Symmetry type: POINT
RefinementHighest resolution: 3.1 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00364467
ELECTRON MICROSCOPYf_angle_d0.81587290
ELECTRON MICROSCOPYf_dihedral_angle_d6.5339045
ELECTRON MICROSCOPYf_chiral_restr0.059918
ELECTRON MICROSCOPYf_plane_restr0.00611319

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