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- EMDB-7010: Cryo-EM structure of human immunoproteasome with a novel noncompe... -

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Basic information

Entry
Database: EMDB / ID: EMD-7010
TitleCryo-EM structure of human immunoproteasome with a novel noncompetitive inhibitor that selectively inhibits activated lymphocytes
Map datahuman immunoproteasome with a novel noncompetitive inhibitor
Sample
  • Complex: human immunoproteasome with a novel noncompetitive inhibitor that selectively inhibits activated lymphocytes
    • Protein or peptide: x 14 types
  • Ligand: x 1 types
Keywordsinhibitor / complex / immunoproteasome / HYDROLASE-HYDROLASE INHIBITOR complex
Function / homology
Function and homology information


spermatoproteasome complex / purine ribonucleoside triphosphate binding / Antigen processing: Ub, ATP-independent proteasomal degradation / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / proteasome core complex / Somitogenesis / antigen processing and presentation / myofibril ...spermatoproteasome complex / purine ribonucleoside triphosphate binding / Antigen processing: Ub, ATP-independent proteasomal degradation / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / proteasome core complex / Somitogenesis / antigen processing and presentation / myofibril / humoral immune response / immune system process / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / threonine-type endopeptidase activity / T cell proliferation / proteasome core complex, alpha-subunit complex / fat cell differentiation / proteasome complex / : / Degradation of CDH1 / sarcomere / Degradation of CRY and PER proteins / Regulation of activated PAK-2p34 by proteasome mediated degradation / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / 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 / Assembly of the pre-replicative complex / negative regulation of inflammatory response to antigenic stimulus / Vpu mediated degradation of CD4 / P-body / Degradation of DVL / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Dectin-1 mediated noncanonical NF-kB signaling / Degradation of AXIN / lipopolysaccharide binding / 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 / Defective CFTR causes cystic fibrosis / Autodegradation of the E3 ubiquitin ligase COP1 / Regulation of RUNX3 expression and activity / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Hedgehog 'on' state / Vif-mediated degradation of APOBEC3G / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / 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 / MAPK6/MAPK4 signaling / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / ABC-family proteins mediated transport / CDK-mediated phosphorylation and removal of Cdc6 / CLEC7A (Dectin-1) signaling / response to virus / SCF(Skp2)-mediated degradation of p27/p21 / FCERI mediated NF-kB activation / nuclear matrix / Regulation of expression of SLITs and ROBOs / cell morphogenesis / Regulation of PTEN stability and activity / Interleukin-1 signaling / Orc1 removal from chromatin / Regulation of RAS by GAPs / Regulation of RUNX2 expression and activity / The role of GTSE1 in G2/M progression after G2 checkpoint / Interferon alpha/beta signaling / Separation of Sister Chromatids / UCH proteinases / KEAP1-NFE2L2 pathway / Downstream TCR signaling / Antigen processing: Ubiquitination & Proteasome degradation / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Neddylation / ER-Phagosome pathway / regulation of inflammatory response / secretory granule lumen / endopeptidase activity / ficolin-1-rich granule lumen / proteasome-mediated ubiquitin-dependent protein catabolic process / positive regulation of canonical NF-kappaB signal transduction / Ub-specific processing proteases / cilium / ciliary basal body / ribosome / intracellular membrane-bounded organelle / ubiquitin protein ligase binding / Neutrophil degranulation / centrosome
Similarity search - Function
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 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 / Nucleophile aminohydrolases, N-terminal
Similarity search - Domain/homology
Proteasome subunit alpha type-7 / 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 beta type-8 / Proteasome subunit beta type-9 / Proteasome subunit alpha type-5 / Proteasome subunit beta type-4 ...Proteasome subunit alpha type-7 / 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 beta type-8 / Proteasome subunit beta type-9 / Proteasome subunit alpha type-5 / Proteasome subunit beta type-4 / Proteasome subunit beta type-10 / Proteasome subunit beta type-3 / Proteasome subunit beta type-2 / Proteasome subunit alpha type-6
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.8 Å
AuthorsLi H / Santos R
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)R01 AI70285 United States
CitationJournal: Nat Commun / Year: 2017
Title: Structure of human immunoproteasome with a reversible and noncompetitive inhibitor that selectively inhibits activated lymphocytes.
Authors: Ruda de Luna Almeida Santos / Lin Bai / Pradeep K Singh / Naoka Murakami / Hao Fan / Wenhu Zhan / Yingrong Zhu / Xiuju Jiang / Kaiming Zhang / Jean Pierre Assker / Carl F Nathan / Huilin Li ...Authors: Ruda de Luna Almeida Santos / Lin Bai / Pradeep K Singh / Naoka Murakami / Hao Fan / Wenhu Zhan / Yingrong Zhu / Xiuju Jiang / Kaiming Zhang / Jean Pierre Assker / Carl F Nathan / Huilin Li / Jamil Azzi / Gang Lin /
Abstract: Proteasome inhibitors benefit patients with multiple myeloma and B cell-dependent autoimmune disorders but exert toxicity from inhibition of proteasomes in other cells. Toxicity should be minimized ...Proteasome inhibitors benefit patients with multiple myeloma and B cell-dependent autoimmune disorders but exert toxicity from inhibition of proteasomes in other cells. Toxicity should be minimized by reversible inhibition of the immunoproteasome β5i subunit while sparing the constitutive β5c subunit. Here we report β5i-selective inhibition by asparagine-ethylenediamine (AsnEDA)-based compounds and present the high-resolution cryo-EM structural analysis of the human immunoproteasome. Despite inhibiting noncompetitively, an AsnEDA inhibitor binds the active site. Hydrophobic interactions are accompanied by hydrogen bonding with β5i and β6 subunits. The inhibitors are far more cytotoxic for myeloma and lymphoma cell lines than for hepatocarcinoma or non-activated lymphocytes. They block human B-cell proliferation and promote apoptotic cell death selectively in antibody-secreting B cells, and to a lesser extent in activated human T cells. Reversible, β5i-selective inhibitors may be useful for treatment of diseases involving activated or neoplastic B cells or activated T cells.
History
DepositionSep 4, 2017-
Header (metadata) releaseSep 27, 2017-
Map releaseDec 6, 2017-
UpdateMay 28, 2025-
Current statusMay 28, 2025Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.0383
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by cylindrical radius
  • Surface level: 0.0383
  • Imaged by UCSF Chimera
  • Download
  • Surface view with fitted model
  • Atomic models: PDB-6avo
  • Surface level: 0.0383
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_7010.png

Downloads & links

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Map

FileDownload / File: emd_7010.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationhuman immunoproteasome with a novel noncompetitive inhibitor
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.2 Å/pix.
x 256 pix.
= 307.2 Å		1.2 Å/pix.
x 256 pix.
= 307.2 Å		1.2 Å/pix.
x 256 pix.
= 307.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.2 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0383 / Movie #1: 0.0383
Minimum - Maximum-0.15268016 - 0.26070794
Average (Standard dev.)0.00067930506 (±0.0088249175)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 307.2 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.21.21.2
M x/y/z256256256
origin x/y/z0.0000.0000.000
length x/y/z307.200307.200307.200
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS256256256
D min/max/mean-0.1530.2610.001

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Supplemental data

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Sample components

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Entire : human immunoproteasome with a novel noncompetitive inhibitor that...

EntireName: human immunoproteasome with a novel noncompetitive inhibitor that selectively inhibits activated lymphocytes
Components
  • Complex: human immunoproteasome with a novel noncompetitive inhibitor that selectively inhibits activated lymphocytes
    • Protein or peptide: Proteasome subunit beta type-9
    • Protein or peptide: Proteasome subunit beta type-10
    • Protein or peptide: Proteasome subunit beta type-8
    • Protein or peptide: Proteasome subunit alpha type-1
    • Protein or peptide: Proteasome subunit alpha type-5
    • Protein or peptide: Proteasome subunit alpha type-7
    • Protein or peptide: Proteasome subunit alpha type-3
    • Protein or peptide: Proteasome subunit alpha type-6
    • Protein or peptide: Proteasome subunit alpha type-4
    • Protein or peptide: Proteasome subunit alpha type-2
    • Protein or peptide: Proteasome subunit beta type-1
    • Protein or peptide: Proteasome subunit beta type-2
    • Protein or peptide: Proteasome subunit beta type-3
    • Protein or peptide: Proteasome subunit beta type-4
  • Ligand: N~1~-{2-[([1,1'-biphenyl]-3-carbonyl)amino]ethyl}-N~4~-tert-butyl-N~2~-(3-phenylpropanoyl)-L-aspartamide

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Supramolecule #1: human immunoproteasome with a novel noncompetitive inhibitor that...

SupramoleculeName: human immunoproteasome with a novel noncompetitive inhibitor that selectively inhibits activated lymphocytes
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#14
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Proteasome subunit beta type-9

MacromoleculeName: Proteasome subunit beta type-9 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 21.295 KDa
SequenceString: TTIMAVEFDG GVVMGSDSRV SAGEAVVNRV FDKLSPLHER IYCALSGSAA DAQAVADMAA YQLELHGIEL EEPPLVLAAA NVVRNISYK YREDLSAHLM VAGWDQREGG QVYGTLGGML TRQPFAIGGS GSTFIYGYVD AAYKPGMSPE ECRRFTTDAI A LAMSRDGS ...String:
TTIMAVEFDG GVVMGSDSRV SAGEAVVNRV FDKLSPLHER IYCALSGSAA DAQAVADMAA YQLELHGIEL EEPPLVLAAA NVVRNISYK YREDLSAHLM VAGWDQREGG QVYGTLGGML TRQPFAIGGS GSTFIYGYVD AAYKPGMSPE ECRRFTTDAI A LAMSRDGS SGGVIYLVTI TAAGVDHRVI LGNELPKFYD E

UniProtKB: Proteasome subunit beta type-9

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Macromolecule #2: Proteasome subunit beta type-10

MacromoleculeName: Proteasome subunit beta type-10 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.674248 KDa
SequenceString: TTIAGLVFQD GVILGADTRA TNDSVVADKS CEKIHFIAPK IYCCGAGVAA DAEMTTRMVA SKMELHALST GREPRVATVT RILRQTLFR YQGHVGASLI VGGVDLTGPQ LYGVHPHGSY SRLPFTALGS GQDAALAVLE DRFQPNMTLE AAQGLLVEAV T AGILGDLG ...String:
TTIAGLVFQD GVILGADTRA TNDSVVADKS CEKIHFIAPK IYCCGAGVAA DAEMTTRMVA SKMELHALST GREPRVATVT RILRQTLFR YQGHVGASLI VGGVDLTGPQ LYGVHPHGSY SRLPFTALGS GQDAALAVLE DRFQPNMTLE AAQGLLVEAV T AGILGDLG SGGNVDACVI TKTGAKLLRT LSSPTEPVKR SGRYHFVPGT TAVLTQTVKP LTLELVEETV QAMEVE

UniProtKB: Proteasome subunit beta type-10

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Macromolecule #3: Proteasome subunit beta type-8

MacromoleculeName: Proteasome subunit beta type-8 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 22.685633 KDa
SequenceString: TTTLAFKFQH GVIAAVDSRA SAGSYISALR VNKVIEINPY LLGTMSGCAA DCQYWERLLA KECRLYYLRN GERISVSAAS KLLSNMMCQ YRGMGLSMGS MICGWDKKGP GLYYVDEHGT RLSGNMFSTG SGNTYAYGVM DSGYRPNLSP EEAYDLGRRA I AYATHRDS ...String:
TTTLAFKFQH GVIAAVDSRA SAGSYISALR VNKVIEINPY LLGTMSGCAA DCQYWERLLA KECRLYYLRN GERISVSAAS KLLSNMMCQ YRGMGLSMGS MICGWDKKGP GLYYVDEHGT RLSGNMFSTG SGNTYAYGVM DSGYRPNLSP EEAYDLGRRA I AYATHRDS YSGGVVNMYH MKEDGWVKVE STDVSDLLHQ YREANQ

UniProtKB: Proteasome subunit beta type-8

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Macromolecule #4: Proteasome subunit alpha type-1

MacromoleculeName: Proteasome subunit alpha type-1 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 29.595627 KDa
SequenceString: MFRNQYDNDV TVWSPQGRIH QIEYAMEAVK QGSATVGLKS KTHAVLVALK RAQSELAAHQ KKILHVDNHI GISIAGLTAD ARLLCNFMR QECLDSRFVF DRPLPVSRLV SLIGSKTQIP TQRYGRRPYG VGLLIAGYDD MGPHIFQTCP SANYFDCRAM S IGARSQSA ...String:
MFRNQYDNDV TVWSPQGRIH QIEYAMEAVK QGSATVGLKS KTHAVLVALK RAQSELAAHQ KKILHVDNHI GISIAGLTAD ARLLCNFMR QECLDSRFVF DRPLPVSRLV SLIGSKTQIP TQRYGRRPYG VGLLIAGYDD MGPHIFQTCP SANYFDCRAM S IGARSQSA RTYLERHMSE FMECNLNELV KHGLRALRET LPAEQDLTTK NVSIGIVGKD LEFTIYDDDD VSPFLEGLEE RP QRKAQPA QPADEPAEKA DEPMEH

UniProtKB: Proteasome subunit alpha type-1

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Macromolecule #5: Proteasome subunit alpha type-5

MacromoleculeName: Proteasome subunit alpha type-5 / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 26.435977 KDa
SequenceString: MFLTRSEYDR GVNTFSPEGR LFQVEYAIEA IKLGSTAIGI QTSEGVCLAV EKRITSPLME PSSIEKIVEI DAHIGCAMSG LIADAKTLI DKARVETQNH WFTYNETMTV ESVTQAVSNL ALQFGEEDAD PGAMSRPFGV ALLFGGVDEK GPQLFHMDPS G TFVQCDAR ...String:
MFLTRSEYDR GVNTFSPEGR LFQVEYAIEA IKLGSTAIGI QTSEGVCLAV EKRITSPLME PSSIEKIVEI DAHIGCAMSG LIADAKTLI DKARVETQNH WFTYNETMTV ESVTQAVSNL ALQFGEEDAD PGAMSRPFGV ALLFGGVDEK GPQLFHMDPS G TFVQCDAR AIGSASEGAQ SSLQEVYHKS MTLKEAIKSS LIILKQVMEE KLNATNIELA TVQPGQNFHM FTKEELEEVI KD I

UniProtKB: Proteasome subunit alpha type-5

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Macromolecule #6: Proteasome subunit alpha type-7

MacromoleculeName: Proteasome subunit alpha type-7 / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 27.929891 KDa
SequenceString: MSYDRAITVF SPDGHLFQVE YAQEAVKKGS TAVGVRGRDI VVLGVEKKSV AKLQDERTVR KICALDDNVC MAFAGLTADA RIVINRARV ECQSHRLTVE DPVTVEYITR YIASLKQRYT QSNGRRPFGI SALIVGFDFD GTPRLYQTDP SGTYHAWKAN A IGRGAKSV ...String:
MSYDRAITVF SPDGHLFQVE YAQEAVKKGS TAVGVRGRDI VVLGVEKKSV AKLQDERTVR KICALDDNVC MAFAGLTADA RIVINRARV ECQSHRLTVE DPVTVEYITR YIASLKQRYT QSNGRRPFGI SALIVGFDFD GTPRLYQTDP SGTYHAWKAN A IGRGAKSV REFLEKNYTD EAIETDDLTI KLVIKALLEV VQSGGKNIEL AVMRRDQSLK ILNPEEIEKY VAEIEKEKEE NE KKKQKKA S

UniProtKB: Proteasome subunit alpha type-7

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Macromolecule #7: Proteasome subunit alpha type-3

MacromoleculeName: Proteasome subunit alpha type-3 / type: protein_or_peptide / ID: 7 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 28.469252 KDa
SequenceString: MSSIGTGYDL SASTFSPDGR VFQVEYAMKA VENSSTAIGI RCKDGVVFGV EKLVLSKLYE EGSNKRLFNV DRHVGMAVAG LLADARSLA DIAREEASNF RSNFGYNIPL KHLADRVAMY VHAYTLYSAV RPFGCSFMLG SYSVNDGAQL YMIDPSGVSY G YWGCAIGK ...String:
MSSIGTGYDL SASTFSPDGR VFQVEYAMKA VENSSTAIGI RCKDGVVFGV EKLVLSKLYE EGSNKRLFNV DRHVGMAVAG LLADARSLA DIAREEASNF RSNFGYNIPL KHLADRVAMY VHAYTLYSAV RPFGCSFMLG SYSVNDGAQL YMIDPSGVSY G YWGCAIGK ARQAAKTEIE KLQMKEMTCR DIVKEVAKII YIVHDEVKDK AFELELSWVG ELTNGRHEIV PKDIREEAEK YA KESLKEE DESDDDNM

UniProtKB: Proteasome subunit alpha type-3

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Macromolecule #8: Proteasome subunit alpha type-6

MacromoleculeName: Proteasome subunit alpha type-6 / type: protein_or_peptide / ID: 8 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 27.432459 KDa
SequenceString: MSRGSSAGFD RHITIFSPEG RLYQVEYAFK AINQGGLTSV AVRGKDCAVI VTQKKVPDKL LDSSTVTHLF KITENIGCVM TGMTADSRS QVQRARYEAA NWKYKYGYEI PVDMLCKRIA DISQVYTQNA EMRPLGCCMI LIGIDEEQGP QVYKCDPAGY Y CGFKATAA ...String:
MSRGSSAGFD RHITIFSPEG RLYQVEYAFK AINQGGLTSV AVRGKDCAVI VTQKKVPDKL LDSSTVTHLF KITENIGCVM TGMTADSRS QVQRARYEAA NWKYKYGYEI PVDMLCKRIA DISQVYTQNA EMRPLGCCMI LIGIDEEQGP QVYKCDPAGY Y CGFKATAA GVKQTESTSF LEKKVKKKFD WTFEQTVETA ITCLSTVLSI DFKPSEIEVG VVTVENPKFR ILTEAEIDAH LV ALAERD

UniProtKB: Proteasome subunit alpha type-6

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Macromolecule #9: Proteasome subunit alpha type-4

MacromoleculeName: Proteasome subunit alpha type-4 / type: protein_or_peptide / ID: 9 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 29.525842 KDa
SequenceString: MSRRYDSRTT IFSPEGRLYQ VEYAMEAIGH AGTCLGILAN DGVLLAAERR NIHKLLDEVF FSEKIYKLNE DMACSVAGIT SDANVLTNE LRLIAQRYLL QYQEPIPCEQ LVTALCDIKQ AYTQFGGKRP FGVSLLYIGW DKHYGFQLYQ SDPSGNYGGW K ATCIGNNS ...String:
MSRRYDSRTT IFSPEGRLYQ VEYAMEAIGH AGTCLGILAN DGVLLAAERR NIHKLLDEVF FSEKIYKLNE DMACSVAGIT SDANVLTNE LRLIAQRYLL QYQEPIPCEQ LVTALCDIKQ AYTQFGGKRP FGVSLLYIGW DKHYGFQLYQ SDPSGNYGGW K ATCIGNNS AAAVSMLKQD YKEGEMTLKS ALALAIKVLN KTMDVSKLSA EKVEIATLTR ENGKTVIRVL KQKEVEQLIK KH EEEEAKA EREKKEKEQK EKDK

UniProtKB: Proteasome subunit alpha type-4

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Macromolecule #10: Proteasome subunit alpha type-2

MacromoleculeName: Proteasome subunit alpha type-2 / type: protein_or_peptide / ID: 10 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 25.927535 KDa
SequenceString: MAERGYSFSL TTFSPSGKLV QIEYALAAVA GGAPSVGIKA ANGVVLATEK KQKSILYDER SVHKVEPITK HIGLVYSGMG PDYRVLVHR ARKLAQQYYL VYQEPIPTAQ LVQRVASVMQ EYTQSGGVRP FGVSLLICGW NEGRPYLFQS DPSGAYFAWK A TAMGKNYV ...String:
MAERGYSFSL TTFSPSGKLV QIEYALAAVA GGAPSVGIKA ANGVVLATEK KQKSILYDER SVHKVEPITK HIGLVYSGMG PDYRVLVHR ARKLAQQYYL VYQEPIPTAQ LVQRVASVMQ EYTQSGGVRP FGVSLLICGW NEGRPYLFQS DPSGAYFAWK A TAMGKNYV NGKTFLEKRY NEDLELEDAI HTAILTLKES FEGQMTEDNI EVGICNEAGF RRLTPTEVKD YLAAIA

UniProtKB: Proteasome subunit alpha type-2

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Macromolecule #11: Proteasome subunit beta type-1

MacromoleculeName: Proteasome subunit beta type-1 / type: protein_or_peptide / ID: 11 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 23.578986 KDa
SequenceString: RFSPYVFNGG TILAIAGEDF AIVASDTRLS EGFSIHTRDS PKCYKLTDKT VIGCSGFHGD CLTLTKIIEA RLKMYKHSNN KAMTTGAIA AMLSTILYSR RFFPYYVYNI IGGLDEEGKG AVYSFDPVGS YQRDSFKAGG SASAMLQPLL DNQVGFKNMQ N VEHVPLSL ...String:
RFSPYVFNGG TILAIAGEDF AIVASDTRLS EGFSIHTRDS PKCYKLTDKT VIGCSGFHGD CLTLTKIIEA RLKMYKHSNN KAMTTGAIA AMLSTILYSR RFFPYYVYNI IGGLDEEGKG AVYSFDPVGS YQRDSFKAGG SASAMLQPLL DNQVGFKNMQ N VEHVPLSL DRAMRLVKDV FISAAERDVY TGDALRICIV TKEGIREETV SLRKD

UniProtKB: Proteasome subunit beta type-1

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Macromolecule #12: Proteasome subunit beta type-2

MacromoleculeName: Proteasome subunit beta type-2 / type: protein_or_peptide / ID: 12 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 22.864277 KDa
SequenceString: MEYLIGIQGP DYVLVASDRV AASNIVQMKD DHDKMFKMSE KILLLCVGEA GDTVQFAEYI QKNVQLYKMR NGYELSPTAA ANFTRRNLA DCLRSRTPYH VNLLLAGYDE HEGPALYYMD YLAALAKAPF AAHGYGAFLT LSILDRYYTP TISRERAVEL L RKCLEELQ ...String:
MEYLIGIQGP DYVLVASDRV AASNIVQMKD DHDKMFKMSE KILLLCVGEA GDTVQFAEYI QKNVQLYKMR NGYELSPTAA ANFTRRNLA DCLRSRTPYH VNLLLAGYDE HEGPALYYMD YLAALAKAPF AAHGYGAFLT LSILDRYYTP TISRERAVEL L RKCLEELQ KRFILNLPTF SVRIIDKNGI HDLDNISFPK QGS

UniProtKB: Proteasome subunit beta type-2

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Macromolecule #13: Proteasome subunit beta type-3

MacromoleculeName: Proteasome subunit beta type-3 / type: protein_or_peptide / ID: 13 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 22.972896 KDa
SequenceString: MSIMSYNGGA VMAMKGKNCV AIAADRRFGI QAQMVTTDFQ KIFPMGDRLY IGLAGLATDV QTVAQRLKFR LNLYELKEGR QIKPYTLMS MVANLLYEKR FGPYYTEPVI AGLDPKTFKP FICSLDLIGC PMVTDDFVVS GTCAEQMYGM CESLWEPNMD P DHLFETIS ...String:
MSIMSYNGGA VMAMKGKNCV AIAADRRFGI QAQMVTTDFQ KIFPMGDRLY IGLAGLATDV QTVAQRLKFR LNLYELKEGR QIKPYTLMS MVANLLYEKR FGPYYTEPVI AGLDPKTFKP FICSLDLIGC PMVTDDFVVS GTCAEQMYGM CESLWEPNMD P DHLFETIS QAMLNAVDRD AVSGMGVIVH IIEKDKITTR TLKARMD

UniProtKB: Proteasome subunit beta type-3

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Macromolecule #14: Proteasome subunit beta type-4

MacromoleculeName: Proteasome subunit beta type-4 / type: protein_or_peptide / ID: 14 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.41474 KDa
SequenceString: TQNPMVTGTS VLGVKFEGGV VIAADMLGSY GSLARFRNIS RIMRVNNSTM LGASGDYADF QYLKQVLGQM VIDEELLGDG HSYSPRAIH SWLTRAMYSR RSKMNPLWNT MVIGGYADGE SFLGYVDMLG VAYEAPSLAT GYGAYLAQPL LREVLEKQPV L SQTEARDL ...String:
TQNPMVTGTS VLGVKFEGGV VIAADMLGSY GSLARFRNIS RIMRVNNSTM LGASGDYADF QYLKQVLGQM VIDEELLGDG HSYSPRAIH SWLTRAMYSR RSKMNPLWNT MVIGGYADGE SFLGYVDMLG VAYEAPSLAT GYGAYLAQPL LREVLEKQPV L SQTEARDL VERCMRVLYY RDARSYNRFQ IATVTEKGVE IEGPLSTETN WDIAHMISGF E

UniProtKB: Proteasome subunit beta type-4

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Macromolecule #15: N~1~-{2-[([1,1'-biphenyl]-3-carbonyl)amino]ethyl}-N~4~-tert-butyl...

MacromoleculeName: N~1~-{2-[([1,1'-biphenyl]-3-carbonyl)amino]ethyl}-N~4~-tert-butyl-N~2~-(3-phenylpropanoyl)-L-aspartamide
type: ligand / ID: 15 / Number of copies: 2 / Formula: BZ7
Molecular weightTheoretical: 542.669 Da
Chemical component information

ChemComp-BZ7:
N~1~-{2-[([1,1'-biphenyl]-3-carbonyl)amino]ethyl}-N~4~-tert-butyl-N~2~-(3-phenylpropanoyl)-L-aspartamide

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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

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeJEOL 3200FS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 60.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD

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Image processing

CTF correctionSoftware: (Name: CTFFIND (ver. 4), Gctf) / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 1.4) / Number images used: 75017
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION

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