EMDB-49508: Structure of substrate engaged MIDN-bound human 26S proteasome, E...

Basic information

Entry

Database: EMDB / ID: EMD-49508

• Title: Structure of substrate engaged MIDN-bound human 26S proteasome, EB-MIDN (Composite map)

Sample

• Complex: Structure of MIDN-bound human 26S proteasome in substrate engaged state EB_MIDN
  • Protein or peptide: x 32 types
• Protein or peptide: x 2 types
• Ligand: x 5 types

• Keywords: Ubiquitin-indepedent / proteasome / Midnolin / MIDN-bound 26S complex / IMMUNE SYSTEM

Function / homology

Function:

negative regulation of glucokinase activity / thyrotropin-releasing hormone receptor binding / modulation by host of viral transcription / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / cytosolic proteasome complex / Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases / proteasome accessory complex / integrator complex / purine ribonucleoside triphosphate binding / meiosis I / proteasome regulatory particle / positive regulation of proteasomal protein catabolic process / proteasome-activating activity / proteasome regulatory particle, lid subcomplex / proteasome regulatory particle, base subcomplex / metal-dependent deubiquitinase activity / negative regulation of programmed cell death / protein K63-linked deubiquitination / Regulation of ornithine decarboxylase (ODC) / 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 / Cross-presentation of soluble exogenous antigens (endosomes) / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / proteasome core complex / Resolution of D-loop Structures through Holliday Junction Intermediates / Somitogenesis / K63-linked deubiquitinase activity / proteasomal ubiquitin-independent protein catabolic process / Impaired BRCA2 binding to RAD51 / proteasome binding / transcription factor binding / regulation of protein catabolic process / myofibril / proteasome storage granule / Presynaptic phase of homologous DNA pairing and strand exchange / general transcription initiation factor binding / blastocyst development / polyubiquitin modification-dependent protein binding / immune system process / protein deubiquitination / endopeptidase activator activity / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / proteasome assembly / threonine-type endopeptidase activity / proteasome core complex, alpha-subunit complex / negative regulation of insulin secretion / mRNA export from nucleus / enzyme regulator activity / regulation of proteasomal protein catabolic process / proteasome complex / proteolysis involved in protein catabolic process / sarcomere / 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 / stem cell differentiation / TNFR2 non-canonical NF-kB pathway / AUF1 (hnRNP D0) binds and destabilizes mRNA / 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 / P-body / Activation of NF-kappaB in B cells / Degradation of GLI1 by the proteasome / Hedgehog ligand biogenesis / G2/M Checkpoints / Defective CFTR causes cystic fibrosis / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Autodegradation of the E3 ubiquitin ligase COP1 / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Regulation of RUNX3 expression and activity / Hedgehog 'on' state / double-strand break repair via homologous recombination / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / MAPK6/MAPK4 signaling / : / Degradation of beta-catenin by the destruction complex / response to virus

Domain/homology:

Midnolin / : / 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 / 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 / DSS1/SEM1 / Proteasome subunit Rpn10 / 26S Proteasome non-ATPase regulatory subunit 7/8 / DSS1/SEM1 family / DSS1_SEM1 / 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 / CSN8/PSMD8/EIF3K / CSN8/PSMD8/EIF3K family / Proteasome subunit alpha 1 / Rpn11/EIF3F, C-terminal / Maintenance of mitochondrial structure and function / HEAT repeats / : / motif in proteasome subunits, Int-6, Nip-1 and TRIP-15 / 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 / Proteasome beta subunit, C-terminal / Proteasome beta subunits C terminal / Proteasome subunit beta 4 / Proteasome subunit beta 2 / Proteasome beta 3 subunit / Proteasome subunit alpha6 / Proteasome subunit alpha5 / 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 / von Willebrand factor (vWF) type A domain / VWFA domain profile. / Proteasome B-type subunit / Proteasome beta-type subunit 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 / MPN domain profile. / Nucleophile aminohydrolases, N-terminal / von Willebrand factor A-like domain superfamily

Component:

Proteasome 26S subunit, ATPase 6 / 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 / 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 / 26S proteasome non-ATPase regulatory subunit 8 / Proteasome subunit beta type-3 / Proteasome subunit beta type-2 / 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 non-ATPase regulatory subunit 2 / 26S proteasome non-ATPase regulatory subunit 6 / Midnolin / Proteasome subunit beta type-7 / 26S proteasome non-ATPase regulatory subunit 1 / 26S proteasome non-ATPase regulatory subunit 13

• Biological species: Homo sapiens (human)
• Method: single particle reconstruction / cryo EM / Resolution: 2.8 Å
• Authors: Peddada N / Beutler B

Funding support

United States, 2 items

Organization	Grant number	Country
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	R01 AI125581	United States
National Institutes of Health/National Cancer Institute (NIH/NCI)	R01 CA258602	United States

• Citation: Journal: Proc Natl Acad Sci U S A / Year: 2025; Title: Structural insights into the ubiquitin-independent midnolin-proteasome pathway.; Authors: Nagesh Peddada / Xue Zhong / Yan Yin / Danielle Renee Lazaro / Jianhui Wang / Stephen Lyon / Jin Huk Choi / Xiao-Chen Bai / Eva Marie Y Moresco / Bruce Beutler / ; Abstract: The protein midnolin (MIDN) augments proteasome activity in lymphocytes and dramatically facilitates the survival and proliferation of B-lymphoid malignancies. MIDN binds both to proteasomes and to substrates, but the mode of interaction with the proteasome is unknown, and the mechanism by which MIDN facilitates substrate degradation in a ubiquitin-independent manner is incompletely understood. Here, we present cryoelectron microscopy (cryo-EM) structures of the substrate-engaged, MIDN-bound human proteasome in two conformational states. MIDN induces proteasome conformations similarly to ubiquitinated substrates by using its ubiquitin-like domain to bind to the deubiquitinase RPN11 (PSMD14). By simultaneously binding to RPN1 (PSMD2) with its C-terminal α-helix, MIDN positions its substrate-carrying Catch domain above the proteasome ATPase channel through which substrates are translocated before degradation. Our findings suggest that both ubiquitin-like domain and C-terminal α-helix must bind to the proteasome for MIDN to stimulate proteasome activity.

History

Deposition	Feb 28, 2025	-
Header (metadata) release	May 7, 2025	-
Map release	May 7, 2025	-
Update	May 21, 2025	-
Current status	May 21, 2025	Processing site: RCSB / Status: Released

Map

• File: Download / File: emd_49508.map.gz / Format: CCP4 / Size: 1000 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
• Voxel size: X=Y=Z: 1.074 Å

Density

Contour Level	By AUTHOR: 0.165
Minimum - Maximum	-0.0017927692 - 1.8412712
Average (Standard dev.)	0.004298756 (±0.02338913)

• Symmetry: Space group: 1

Details

EMDB XML:

Map geometry	Axis order X Y Z Origin 0 0 0 Dimensions 640 640 640 Spacing 640 640 640
Cell	A=B=C: 687.36 Å α=β=γ: 90.0 °

Supplemental data

Sample components

Entire : Structure of MIDN-bound human 26S proteasome in substrate engaged...

• Entire: Name: Structure of MIDN-bound human 26S proteasome in substrate engaged state EB_MIDN

Components

• Complex: Structure of MIDN-bound human 26S proteasome in substrate engaged state EB_MIDN
  • Protein or peptide: Proteasome subunit alpha type-6
  • Protein or peptide: Proteasome subunit alpha type-2
  • Protein or peptide: Proteasome subunit alpha type-4
  • Protein or peptide: Proteasome subunit alpha type-7
  • Protein or peptide: Proteasome subunit alpha type-5
  • Protein or peptide: Proteasome subunit alpha type-1
  • Protein or peptide: Proteasome subunit alpha type-3
  • Protein or peptide: Proteasome subunit beta type-6
  • Protein or peptide: Proteasome subunit beta type-7
  • Protein or peptide: Proteasome subunit beta type-3
  • Protein or peptide: Proteasome subunit beta type-2
  • Protein or peptide: Proteasome subunit beta type-5
  • Protein or peptide: Proteasome subunit beta type-1
  • Protein or peptide: Proteasome subunit beta type-4
  • Protein or peptide: 26S proteasome regulatory subunit 7
  • Protein or peptide: 26S proteasome regulatory subunit 4
  • Protein or peptide: 26S protease regulatory subunit 8
  • Protein or peptide: 26S proteasome regulatory subunit 6B
  • Protein or peptide: 26S proteasome regulatory subunit 10B
  • Protein or peptide: 26S proteasome regulatory subunit 6A
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 3
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 12
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 11
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 6
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 7
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 13
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 4
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 8
  • Protein or peptide: 26S proteasome complex subunit SEM1
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 14
  • Protein or peptide: 26S proteasome non-ATPase regulatory subunit 2
  • Protein or peptide: Midnolin
• Protein or peptide: unknown density (substrate density)
• Protein or peptide: 26S proteasome non-ATPase regulatory subunit 1
• Ligand: N-[(benzyloxy)carbonyl]-L-leucyl-N-[(2S)-4-methyl-1-oxopentan-2-yl]-L-leucinamide
• Ligand: ADENOSINE-5'-TRIPHOSPHATE
• Ligand: MAGNESIUM ION
• Ligand: ADENOSINE-5'-DIPHOSPHATE
• Ligand: ZINC ION

Supramolecule #1: Structure of MIDN-bound human 26S proteasome in substrate engaged...

• Supramolecule: Name: Structure of MIDN-bound human 26S proteasome in substrate engaged state EB_MIDN; type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#29, #32-#34
• Source (natural): Organism: Homo sapiens (human) / Strain: HEK 293

Macromolecule #1: Proteasome subunit alpha type-6

• Macromolecule: Name: Proteasome subunit alpha type-6 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 27.432459 KDa

Sequence

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

Macromolecule #2: Proteasome subunit alpha type-2

• Macromolecule: Name: Proteasome subunit alpha type-2 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 25.927535 KDa

Sequence

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

Macromolecule #3: Proteasome subunit alpha type-4

• Macromolecule: Name: Proteasome subunit alpha type-4 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 29.525842 KDa

Sequence

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

Macromolecule #4: Proteasome subunit alpha type-7

• Macromolecule: Name: Proteasome subunit alpha type-7 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 27.929891 KDa

Sequence

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

Macromolecule #5: Proteasome subunit alpha type-5

• Macromolecule: Name: Proteasome subunit alpha type-5 / type: protein_or_peptide / ID: 5 / Details: PSMA5 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 26.484062 KDa

Sequence

String:

MFLTRSEYYR 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

Macromolecule #6: Proteasome subunit alpha type-1

• Macromolecule: Name: Proteasome subunit alpha type-1 / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 29.595627 KDa

Sequence

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

Macromolecule #7: Proteasome subunit alpha type-3

• Macromolecule: Name: Proteasome subunit alpha type-3 / type: protein_or_peptide / ID: 7 / Details: PSMA3 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 28.469252 KDa

Sequence

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

Macromolecule #8: Proteasome subunit beta type-6

• Macromolecule: Name: Proteasome subunit beta 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 weight: Theoretical: 25.377652 KDa

Sequence

String:

MAATLLAARG AGPAPAWGPE AFTPDWESRE VSTGTTIMAV QFDGGVVLGA DSRTTTGSYI ANRVTDKLTP IHDRIFCCRS GSAADTQAV ADAVTYQLGF HSIELNEPPL VHTAASLFKE MCYRYREDLM AGIIIAGWDP QEGGQVYSVP MGGMMVRQSF A IGGSGSSY IYGYVDATYR EGMTKEECLQ FTANALALAM ERDGSSGGVI RLAAIAESGV ERQVLLGDQI PKFAVATLPP A

UniProtKB: Proteasome subunit beta type-6

Macromolecule #9: Proteasome subunit beta type-7

• Macromolecule: Name: Proteasome subunit beta type-7 / type: protein_or_peptide / ID: 9 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 30.000418 KDa

Sequence

String:

MAAVSVYAPP VGGFSFDNCR RNAVLEADFA KRGYKLPKVR KTGTTIAGVV YKDGIVLGAD TRATEGMVVA DKNCSKIHFI SPNIYCCGA GTAADTDMTT QLISSNLELH SLSTGRLPRV VTANRMLKQM LFRYQGYIGA ALVLGGVDVT GPHLYSIYPH G STDKLPYV TMGSGSLAAM AVFEDKFRPD MEEEEAKNLV SEAIAAGIFN DLGSGSNIDL CVISKNKLDF LRPYTVPNKK GT RLGRYRC EKGTTAVLTE KITPLEIEVL EETVQTMDTS

UniProtKB: Proteasome subunit beta type-7

Macromolecule #10: Proteasome subunit beta type-3

• Macromolecule: Name: Proteasome subunit beta type-3 / type: protein_or_peptide / ID: 10 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 22.972896 KDa

Sequence

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

Macromolecule #11: Proteasome subunit beta type-2

• Macromolecule: Name: Proteasome subunit beta type-2 / type: protein_or_peptide / ID: 11 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 22.864277 KDa

Sequence

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

Macromolecule #12: Proteasome subunit beta type-5

• Macromolecule: Name: Proteasome subunit beta type-5 / type: protein_or_peptide / ID: 12 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 28.510248 KDa

Sequence

String:

MALASVLERP LPVNQRGFFG LGGRADLLDL GPGSLSDGLS LAAPGWGVPE EPGIEMLHGT TTLAFKFRHG VIVAADSRAT AGAYIASQT VKKVIEINPY LLGTMAGGAA DCSFWERLLA RQCRIYELRN KERISVAAAS KLLANMVYQY KGMGLSMGTM I CGWDKRGP GLYYVDSEGN RISGATFSVG SGSVYAYGVM DRGYSYDLEV EQAYDLARRA IYQATYRDAY SGGAVNLYHV RE DGWIRVS SDNVADLHEK YSGSTP

UniProtKB: Proteasome subunit beta type-5

Macromolecule #13: Proteasome subunit beta type-1

• Macromolecule: Name: Proteasome subunit beta type-1 / type: protein_or_peptide / ID: 13 / Number of copies: 2 / Enantiomer: LEVO / EC number: proteasome endopeptidase complex
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 26.522396 KDa

Sequence

String:

MLSSTAMYSA PGRDLGMEPH RAAGPLQLRF SPYVFNGGTI LAIAGEDFAI VASDTRLSEG FSIHTRDSPK CYKLTDKTVI GCSGFHGDC LTLTKIIEAR LKMYKHSNNK AMTTGAIAAM LSTILYSRRF FPYYVYNIIG GLDEEGKGAV YSFDPVGSYQ R DSFKAGGS ASAMLQPLLD NQVGFKNMQN VEHVPLSLDR AMRLVKDVFI SAAERDVYTG DALRICIVTK EGIREETVSL RK D

UniProtKB: Proteasome subunit beta type-1

Macromolecule #14: Proteasome subunit beta type-4

• Macromolecule: Name: 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 weight: Theoretical: 29.231178 KDa

Sequence

String:

MEAFLGSRSG LWAGGPAPGQ FYRIPSTPDS FMDPASALYR GPITRTQNPM VTGTSVLGVK FEGGVVIAAD MLGSYGSLAR FRNISRIMR VNNSTMLGAS GDYADFQYLK QVLGQMVIDE ELLGDGHSYS PRAIHSWLTR AMYSRRSKMN PLWNTMVIGG Y ADGESFLG YVDMLGVAYE APSLATGYGA YLAQPLLREV LEKQPVLSQT EARDLVERCM RVLYYRDARS YNRFQIATVT EK GVEIEGP LSTETNWDIA HMISGFE

UniProtKB: Proteasome subunit beta type-4

Macromolecule #15: 26S proteasome regulatory subunit 7

• Macromolecule: Name: 26S proteasome regulatory subunit 7 / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 48.700805 KDa

Sequence

String:

MPDYLGADQR KTKEDEKDDK PIRALDEGDI ALLKTYGQST YSRQIKQVED DIQQLLKKIN ELTGIKESDT GLAPPALWDL AADKQTLQS EQPLQVARCT KIINADSEDP KYIINVKQFA KFVVDLSDQV APTDIEEGMR VGVDRNKYQI HIPLPPKIDP T VTMMQVEE KPDVTYSDVG GCKEQIEKLR EVVETPLLHP ERFVNLGIEP PKGVLLFGPP GTGKTLCARA VANRTDACFI RV IGSELVQ KYVGEGARMV RELFEMARTK KACLIFFDEI DAIGGARFDD GAGGDNEVQR TMLELINQLD GFDPRGNIKV LMA TNRPDT LDPALMRPGR LDRKIEFSLP DLEGRTHIFK IHARSMSVER DIRFELLARL CPNSTGAEIR SVCTEAGMFA IRAR RKIAT EKDFLEAVNK VIKSYAKFSA TPRYMTYN

UniProtKB: 26S proteasome regulatory subunit 7

Macromolecule #16: 26S proteasome regulatory subunit 4

• Macromolecule: Name: 26S proteasome regulatory subunit 4 / type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 49.260504 KDa

Sequence

String:

MGQSQSGGHG PGGGKKDDKD KKKKYEPPVP TRVGKKKKKT KGPDAASKLP LVTPHTQCRL KLLKLERIKD YLLMEEEFIR NQEQMKPLE EKQEEERSKV DDLRGTPMSV GTLEEIIDDN HAIVSTSVGS EHYVSILSFV DKDLLEPGCS VLLNHKVHAV I GVLMDDTD PLVTVMKVEK APQETYADIG GLDNQIQEIK ESVELPLTHP EYYEEMGIKP PKGVILYGPP GTGKTLLAKA VA NQTSATF LRVVGSELIQ KYLGDGPKLV RELFRVAEEH APSIVFIDEI DAIGTKRYDS NSGGEREIQR TMLELLNQLD GFD SRGDVK VIMATNRIET LDPALIRPGR IDRKIEFPLP DEKTKKRIFQ IHTSRMTLAD DVTLDDLIMA KDDLSGADIK AICT EAGLM ALRERRMKVT NEDFKKSKEN VLYKKQEGTP EGLYL

UniProtKB: 26S proteasome regulatory subunit 4

Macromolecule #17: 26S protease regulatory subunit 8

• Macromolecule: Name: 26S protease regulatory subunit 8 / type: protein_or_peptide / ID: 17 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 45.694047 KDa

Sequence

String:

MALDGPEQME LEEGKAGSGL RQYYLSKIEE LQLIVNDKSQ NLRRLQAQRN ELNAKVRLLR EELQLLQEQG SYVGEVVRAM DKKKVLVKV HPEGKFVVDV DKNIDINDVT PNCRVALRND SYTLHKILPN KVDPLVSLMM VEKVPDSTYE MIGGLDKQIK E IKEVIELP VKHPELFEAL GIAQPKGVLL YGPPGTGKTL LARAVAHHTD CTFIRVSGSE LVQKFIGEGA RMVRELFVMA RE HAPSIIF MDEIDSIGSS RLEGGSGGDS EVQRTMLELL NQLDGFEATK NIKVIMATNR IDILDSALLR PGRIDRKIEF PPP NEEARL DILKIHSRKM NLTRGINLRK IAELMPGASG AEVKGVCTEA GMYALRERRV HVTQEDFEMA VAKVMQKDSE KNMS IKKLW K

UniProtKB: 26S proteasome regulatory subunit 8

Macromolecule #18: 26S proteasome regulatory subunit 6B

• Macromolecule: Name: 26S proteasome regulatory subunit 6B / type: protein_or_peptide / ID: 18 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 47.426141 KDa

Sequence

String:

MEEIGILVEK AQDEIPALSV SRPQTGLSFL GPEPEDLEDL YSRYKKLQQE LEFLEVQEEY IKDEQKNLKK EFLHAQEEVK RIQSIPLVI GQFLEAVDQN TAIVGSTTGS NYYVRILSTI DRELLKPNAS VALHKHSNAL VDVLPPEADS SIMMLTSDQK P DVMYADIG GMDIQKQEVR EAVELPLTHF ELYKQIGIDP PRGVLMYGPP GCGKTMLAKA VAHHTTAAFI RVVGSEFVQK YL GEGPRMV RDVFRLAKEN APAIIFIDEI DAIATKRFDA QTGADREVQR ILLELLNQMD GFDQNVNVKV IMATNRADTL DPA LLRPGR LDRKIEFPLP DRRQKRLIFS TITSKMNLSE EVDLEDYVAR PDKISGADIN SICQESGMLA VRENRYIVLA KDFE KAYKT VIKKDEQEHE FYK

UniProtKB: 26S proteasome regulatory subunit 6B

Macromolecule #19: 26S proteasome regulatory subunit 10B

• Macromolecule: Name: 26S proteasome regulatory subunit 10B / type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 45.867027 KDa

Sequence

String:

MAIPGIPYER RLLIMADPRD KALQDYRKKL LEHKEIDGRL KELREQLKEL TKQYEKSEND LKALQSVGQI VGEVLKQLTE EKFIVKATN GPRYVVGCRR QLDKSKLKPG TRVALDMTTL TIMRYLPREV DPLVYNMSHE DPGNVSYSEI GGLSEQIREL R EVIELPLT NPELFQRVGI IPPKGCLLYG PPGTGKTLLA RAVASQLDCN FLKVVSSSIV DKYIGESARL IREMFNYARD HQ PCIIFMD EIDAIGGRRF SEGTSADREI QRTLMELLNQ MDGFDTLHRV KMIMATNRPD TLDPALLRPG RLDRKIHIDL PNE QARLDI LKIHAGPITK HGEIDYEAIV KLSDGFNGAD LRNVCTEAGM FAIRADHDFV VQEDFMKAVR KVADSKKLES KLDY KPV

UniProtKB: Proteasome 26S subunit, ATPase 6

Macromolecule #20: 26S proteasome regulatory subunit 6A

• Macromolecule: Name: 26S proteasome regulatory subunit 6A / type: protein_or_peptide / ID: 20 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 49.266457 KDa

Sequence

String:

MNLLPNIESP VTRQEKMATV WDEAEQDGIG EEVLKMSTEE IIQRTRLLDS EIKIMKSEVL RVTHELQAMK DKIKENSEKI KVNKTLPYL VSNVIELLDV DPNDQEEDGA NIDLDSQRKG KCAVIKTSTR QTYFLPVIGL VDAEKLKPGD LVGVNKDSYL I LETLPTEY DSRVKAMEVD ERPTEQYSDI GGLDKQIQEL VEAIVLPMNH KEKFENLGIQ PPKGVLMYGP PGTGKTLLAR AC AAQTKAT FLKLAGPQLV QMFIGDGAKL VRDAFALAKE KAPSIIFIDE LDAIGTKRFD SEKAGDREVQ RTMLELLNQL DGF QPNTQV KVIAATNRVD ILDPALLRSG RLDRKIEFPM PNEEARARIM QIHSRKMNVS PDVNYEELAR CTDDFNGAQC KAVC VEAGM IALRRGATEL THEDYMEGIL EVQAKKKANL QYYA

UniProtKB: 26S proteasome regulatory subunit 6A

Macromolecule #21: 26S proteasome non-ATPase regulatory subunit 3

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 3 / type: protein_or_peptide / ID: 21 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 61.0665 KDa

Sequence

String:

MKQEGSARRR GADKAKPPPG GGEQEPPPPP APQDVEMKEE AATGGGSTGE ADGKTAAAAA EHSQRELDTV TLEDIKEHVK QLEKAVSGK EPRFVLRALR MLPSTSRRLN HYVLYKAVQG FFTSNNATRD FLLPFLEEPM DTEADLQFRP RTGKAASTPL L PEVEAYLQ LLVVIFMMNS KRYKEAQKIS DDLMQKISTQ NRRALDLVAA KCYYYHARVY EFLDKLDVVR SFLHARLRTA TL RHDADGQ ATLLNLLLRN YLHYSLYDQA EKLVSKSVFP EQANNNEWAR YLYYTGRIKA IQLEYSEARR TMTNALRKAP QHT AVGFKQ TVHKLLIVVE LLLGEIPDRL QFRQPSLKRS LMPYFLLTQA VRTGNLAKFN QVLDQFGEKF QADGTYTLII RLRH NVIKT GVRMISLSYS RISLADIAQK LQLDSPEDAE FIVAKAIRDG VIEASINHEK GYVQSKEMID IYSTREPQLA FHQRI SFCL DIHNMSVKAM RFPPKSYNKD LESAEERRER EQQDLEFAKE MAEDDDDSFP

UniProtKB: 26S proteasome non-ATPase regulatory subunit 3

Macromolecule #22: 26S proteasome non-ATPase regulatory subunit 12

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 12 / type: protein_or_peptide / ID: 22 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 52.979359 KDa

Sequence

String:

MADGGSERAD GRIVKMEVDY SATVDQRLPE CAKLAKEGRL QEVIETLLSL EKQTRTASDM VSTSRILVAV VKMCYEAKEW DLLNENIML LSKRRSQLKQ AVAKMVQQCC TYVEEITDLP IKLRLIDTLR MVTEGKIYVE IERARLTKTL ATIKEQNGDV K EAASILQE LQVETYGSME KKERVEFILE QMRLCLAVKD YIRTQIISKK INTKFFQEEN TEKLKLKYYN LMIQLDQHEG SY LSICKHY RAIYDTPCIQ AESEKWQQAL KSVVLYVILA PFDNEQSDLV HRISGDKKLE EIPKYKDLLK LFTTMELMRW STL VEDYGM ELRKGSLESP ATDVFGSTEE GEKRWKDLKN RVVEHNIRIM AKYYTRITMK RMAQLLDLSV DESEAFLSNL VVNK TIFAK VDRLAGIINF QRPKDPNNLL NDWSQKLNSL MSLVNKTTHL IAKEEMIHNL Q

UniProtKB: 26S proteasome non-ATPase regulatory subunit 12

Macromolecule #23: 26S proteasome non-ATPase regulatory subunit 11

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 11 / type: protein_or_peptide / ID: 23 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 47.526688 KDa

Sequence

String:

MAAAAVVEFQ RAQSLLSTDR EASIDILHSI VKRDIQENDE EAVQVKEQSI LELGSLLAKT GQAAELGGLL KYVRPFLNSI SKAKAARLV RSLLDLFLDM EAATGQEVEL CLECIEWAKS EKRTFLRQAL EARLVSLYFD TKRYQEALHL GSQLLRELKK M DDKALLVE VQLLESKTYH ALSNLPKARA ALTSARTTAN AIYCPPKLQA TLDMQSGIIH AAEEKDWKTA YSYFYEAFEG YD SIDSPKA ITSLKYMLLC KIMLNTPEDV QALVSGKLAL RYAGRQTEAL KCVAQASKNR SLADFEKALT DYRAELRDDP IIS THLAKL YDNLLEQNLI RVIEPFSRVQ IEHISSLIKL SKADVERKLS QMILDKKFHG ILDQGEGVLI IFDEPPVDKT YEAA LETIQ NMSKVVDSLY NKAKKLT

UniProtKB: 26S proteasome non-ATPase regulatory subunit 11

Macromolecule #24: 26S proteasome non-ATPase regulatory subunit 6

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 6 / type: protein_or_peptide / ID: 24 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 45.592285 KDa

Sequence

String:

MPLENLEEEG LPKNPDLRIA QLRFLLSLPE HRGDAAVRDE LMAAVRDNNM APYYEALCKS LDWQIDVDLL NKMKKANEDE LKRLDEELE DAEKNLGESE IRDAMMAKAE YLCRIGDKEG ALTAFRKTYD KTVALGHRLD IVFYLLRIGL FYMDNDLITR N TEKAKSLI EEGGDWDRRN RLKVYQGLYC VAIRDFKQAA ELFLDTVSTF TSYELMDYKT FVTYTVYVSM IALERPDLRE KV IKGAEIL EVLHSLPAVR QYLFSLYECR YSVFFQSLAV VEQEMKKDWL FAPHYRYYVR EMRIHAYSQL LESYRSLTLG YMA EAFGVG VEFIDQELSR FIAAGRLHCK IDKVNEIVET NRPDSKNWQY QETIKKGDLL LNRVQKLSRV INM

UniProtKB: 26S proteasome non-ATPase regulatory subunit 6

Macromolecule #25: 26S proteasome non-ATPase regulatory subunit 7

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 7 / type: protein_or_peptide / ID: 25 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 37.086441 KDa

Sequence

String:

MPELAVQKVV VHPLVLLSVV DHFNRIGKVG NQKRVVGVLL GSWQKKVLDV SNSFAVPFDE DDKDDSVWFL DHDYLENMYG MFKKVNARE RIVGWYHTGP KLHKNDIAIN ELMKRYCPNS VLVIIDVKPK DLGLPTEAYI SVEEVHDDGT PTSKTFEHVT S EIGAEEAE EVGVEHLLRD IKDTTVGTLS QRITNQVHGL KGLNSKLLDI RSYLEKVATG KLPINHQIIY QLQDVFNLLP DV SLQEFVK AFYLKTNDQM VVVYLASLIR SVVALHNLIN NKIANRDAEK KEGQEKEESK KDRKEDKEKD KDKEKSDVKK EEK KEKK

UniProtKB: 26S proteasome non-ATPase regulatory subunit 7

Macromolecule #26: 26S proteasome non-ATPase regulatory subunit 13

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 13 / type: protein_or_peptide / ID: 26 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 42.995359 KDa

Sequence

String:

MKDVPGFLQQ SQNSGPGQPA VWHRLEELYT KKLWHQLTLQ VLDFVQDPCF AQGDGLIKLY ENFISEFEHR VNPLSLVEII LHVVRQMTD PNVALTFLEK TREKVKSSDE AVILCKTAIG ALKLNIGDLQ VTKETIEDVE EMLNNLPGVT SVHSRFYDLS S KYYQTIGN HASYYKDALR FLGCVDIKDL PVSEQQERAF TLGLAGLLGE GVFNFGELLM HPVLESLRNT DRQWLIDTLY AF NSGNVER FQTLKTAWGQ QPDLAANEAQ LLRKIQLLCL MEMTFTRPAN HRQLTFEEIA KSAKITVNEV ELLVMKALSV GLV KGSIDE VDKRVHMTWV QPRVLDLQQI KGMKDRLEFW CTDVKSMEML VEHQAHDILT

UniProtKB: 26S proteasome non-ATPase regulatory subunit 13

Macromolecule #27: 26S proteasome non-ATPase regulatory subunit 4

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 4 / type: protein_or_peptide / ID: 27 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 40.78159 KDa

Sequence

String:

MVLESTMVCV DNSEYMRNGD FLPTRLQAQQ DAVNIVCHSK TRSNPENNVG LITLANDCEV LTTLTPDTGR ILSKLHTVQP KGKITFCTG IRVAHLALKH RQGKNHKMRI IAFVGSPVED NEKDLVKLAK RLKKEKVNVD IINFGEEEVN TEKLTAFVNT L NGKDGTGS HLVTVPPGPS LADALISSPI LAGEGGAMLG LGASDFEFGV DPSADPELAL ALRVSMEEQR QRQEEEARRA AA ASAAEAG IATTGTEDSD DALLKMTISQ QEFGRTGLPD LSSMTEEEQI AYAMQMSLQG AEFGQAESAD IDASSAMDTS EPA KEEDDY DVMQDPEFLQ SVLENLPGVD PNNEAIRNAM GSLASQATKD GKKDKKEEDK K

UniProtKB: 26S proteasome non-ATPase regulatory subunit 4

Macromolecule #28: 26S proteasome non-ATPase regulatory subunit 8

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 8 / type: protein_or_peptide / ID: 28 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 39.667871 KDa

Sequence

String:

MFIKGRAPRA PPRERRRATR GGLRQVVAPP RALGSTSRPH FRRASVCRRR CRKSGGLLAA SRKMAAAAVN GAAGFSSSGP AATSGAVLQ AATGMYEQLK GEWNRKSPNL SKCGEELGRL KLVLLELNFL PTTGTKLTKQ QLILARDILE IGAQWSILRK D IPSFERYM AQLKCYYFDY KEQLPESAYM HQLLGLNLLF LLSQNRVAEF HTELERLPAK DIQTNVYIKH PVSLEQYLME GS YNKVFLA KGNIPAESYT FFIDILLDTI RDEIAGCIEK AYEKILFTEA TRILFFNTPK KMTDYAKKRG WVLGPNNYYS FAS QQQKPE DTTIPSTELA KQVIEYARQL EMIV

UniProtKB: 26S proteasome non-ATPase regulatory subunit 8

Macromolecule #29: 26S proteasome complex subunit SEM1

• Macromolecule: Name: 26S proteasome complex subunit SEM1 / type: protein_or_peptide / ID: 29 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 8.284611 KDa

Sequence

String:

MSEKKQPVDL GLLEEDDEFE EFPAEDWAGL DEDEDAHVWE DNWDDDNVED DFSNQLRAEL EKHGYKMETS

UniProtKB: 26S proteasome complex subunit SEM1

Macromolecule #30: unknown density (substrate density)

• Macromolecule: Name: unknown density (substrate density) / type: protein_or_peptide / ID: 30 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 1.039273 KDa

Sequence

String:

(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)

Macromolecule #31: 26S proteasome non-ATPase regulatory subunit 1

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 1 / type: protein_or_peptide / ID: 31 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 105.958234 KDa

Sequence

String:

MITSAAGIIS LLDEDEPQLK EFALHKLNAV VNDFWAEISE SVDKIEVLYE DEGFRSRQFA ALVASKVFYH LGAFEESLNY ALGAGDLFN VNDNSEYVET IIAKCIDHYT KQCVENADLP EGEKKPIDQR LEGIVNKMFQ RCLDDHKYKQ AIGIALETRR L DVFEKTIL ESNDVPGMLA YSLKLCMSLM QNKQFRNKVL RVLVKIYMNL EKPDFINVCQ CLIFLDDPQA VSDILEKLVK ED NLLMAYQ ICFDLYESAS QQFLSSVIQN LRTVGTPIAS VPGSTNTGTV PGSEKDSDSM ETEEKTSSAF VGKTPEASPE PKD QTLKMI KILSGEMAIE LHLQFLIRNN NTDLMILKNT KDAVRNSVCH TATVIANSFM HCGTTSDQFL RDNLEWLARA TNWA KFTAT ASLGVIHKGH EKEALQLMAT YLPKDTSPGS AYQEGGGLYA LGLIHANHGG DIIDYLLNQL KNASNDIVRH GGSLG LGLA AMGTARQDVY DLLKTNLYQD DAVTGEAAGL ALGLVMLGSK NAQAIEDMVG YAQETQHEKI LRGLAVGIAL VMYGRM EEA DALIESLCRD KDPILRRSGM YTVAMAYCGS GNNKAIRRLL HVAVSDVNDD VRRAAVESLG FILFRTPEQC PSVVSLL SE SYNPHVRYGA AMALGICCAG TGNKEAINLL EPMTNDPVNY VRQGALIASA LIMIQQTEIT CPKVNQFRQL YSKVINDK H DDVMAKFGAI LAQGILDAGG HNVTISLQSR TGHTHMPSVV GVLVFTQFWF WFPLSHFLSL AYTPTCVIGL NKDLKMPKV QYKSNCKPST FAYPAPLEVP KEKEKEKVST AVLSITAKAK KKEKEKEKKE EEKMEVDEAE KKEEKEKKKE PEPNFQLLDN PARVMPAQL KVLTMPETCR YQPFKPLSIG GIIILKDTSE DIEELVEPVA AHGPKIEEEE QEPEPPEPFE YIDD

UniProtKB: 26S proteasome non-ATPase regulatory subunit 1

Macromolecule #32: 26S proteasome non-ATPase regulatory subunit 14

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 14 / type: protein_or_peptide / ID: 32 / Number of copies: 1 / Enantiomer: LEVO; EC number: Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 34.620023 KDa

Sequence

String:

MDRLLRLGGG MPGLGQGPPT DAPAVDTAEQ VYISSLALLK MLKHGRAGVP MEVMGLMLGE FVDDYTVRVI DVFAMPQSGT GVSVEAVDP VFQAKMLDML KQTGRPEMVV GWYHSHPGFG CWLSGVDINT QQSFEALSER AVAVVVDPIQ SVKGKVVIDA F RLINANMM VLGHEPRQTT SNLGHLNKPS IQALIHGLNR HYYSITINYR KNELEQKMLL NLHKKSWMEG LTLQDYSEHC KH NESVVKE MLELAKNYNK AVEEEDKMTP EQLAIKNVGK QDPKRHLEEH VDVLMTSNIV QCLAAMLDTV VFK

UniProtKB: 26S proteasome non-ATPase regulatory subunit 14

Macromolecule #33: 26S proteasome non-ATPase regulatory subunit 2

• Macromolecule: Name: 26S proteasome non-ATPase regulatory subunit 2 / type: protein_or_peptide / ID: 33 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 100.313625 KDa

Sequence

String:

MEEGGRDKAP VQPQQSPAAA PGGTDEKPSG KERRDAGDKD KEQELSEEDK QLQDELEMLV ERLGEKDTSL YRPALEELRR QIRSSTTSM TSVPKPLKFL RPHYGKLKEI YENMAPGENK RFAADIISVL AMTMSGEREC LKYRLVGSQE ELASWGHEYV R HLAGEVAK EWQELDDAEK VQREPLLTLV KEIVPYNMAH NAEHEACDLL MEIEQVDMLE KDIDENAYAK VCLYLTSCVN YV PEPENSA LLRCALGVFR KFSRFPEALR LALMLNDMEL VEDIFTSCKD VVVQKQMAFM LGRHGVFLEL SEDVEEYEDL TEI MSNVQL NSNFLALARE LDIMEPKVPD DIYKTHLENN RFGGSGSQVD SARMNLASSF VNGFVNAAFG QDKLLTDDGN KWLY KNKDH GMLSAAASLG MILLWDVDGG LTQIDKYLYS SEDYIKSGAL LACGIVNSGV RNECDPALAL LSDYVLHNSN TMRLG SIFG LGLAYAGSNR EDVLTLLLPV MGDSKSSMEV AGVTALACGM IAVGSCNGDV TSTILQTIME KSETELKDTY ARWLPL GLG LNHLGKGEAI EAILAALEVV SEPFRSFANT LVDVCAYAGS GNVLKVQQLL HICSEHFDSK EKEEDKDKKE KKDKDKK EA PADMGAHQGV AVLGIALIAM GEEIGAEMAL RTFGHLLRYG EPTLRRAVPL ALALISVSNP RLNILDTLSK FSHDADPE V SYNSIFAMGM VGSGTNNARL AAMLRQLAQY HAKDPNNLFM VRLAQGLTHL GKGTLTLCPY HSDRQLMSQV AVAGLLTVL VSFLDVRNII LGKSHYVLYG LVAAMQPRML VTFDEELRPL PVSVRVGQAV DVVGQAGKPK TITGFQTHTT PVLLAHGERA ELATEEFLP VTPILEGFVI LRKNPNYDL

UniProtKB: 26S proteasome non-ATPase regulatory subunit 2

Macromolecule #34: Midnolin

• Macromolecule: Name: Midnolin / type: protein_or_peptide / ID: 34 / Number of copies: 1 / Enantiomer: LEVO
• Source (natural): Organism: Homo sapiens (human)
• Molecular weight: Theoretical: 49.278652 KDa
• Recombinant expression: Organism: Escherichia coli BL21(DE3) (bacteria)

Sequence

String:

MEPQPGGARS CRRGAPGGAC ELGPAAEAAP MSLAIHSTTG TRYDLAVPPD ETVEGLRKRL SQRLKVPKER LALLHKDTRL SSGKLQEFG VGDGSKLTLV PTVEAGLMSQ ASRPEQSVMQ ALESLTETQV SDFLSGRSPL TLALRVGDHM MFVQLQLAAQ H APLQHRHV LAAAAAAAAA RGDPSIASPV SSPCRPVSSA ARVPPVPTSP SPASPSPITA GSFRSHAAST TCPEQMDCSP TA SSSASPG ASTTSTPGAS PAPRSRKPGA VIESFVNHAP GVFSGTFSGT LHPNCQDSSG RPRRDIGTIL QILNDLLSAT RHY QGMPPS LAQLRCHAQC SPASPAPDLA PRTTSCEKLT AAPSASLLQG QSQIRMCKPP GDRLRQTENR ATRCKVERLQ LLLQ QKRLR RKARRDARGP YHWSPSRKAG RSDSSSSGGG GSPSEASGLG LDFEDSVWKP EVNPDIKSEF VVA

UniProtKB: Midnolin

Macromolecule #35: N-[(benzyloxy)carbonyl]-L-leucyl-N-[(2S)-4-methyl-1-oxopentan-2-y...

• Macromolecule: Name: N-[(benzyloxy)carbonyl]-L-leucyl-N-[(2S)-4-methyl-1-oxopentan-2-yl]-L-leucinamide; type: ligand / ID: 35 / Number of copies: 6 / Formula: LDZ
• Molecular weight: Theoretical: 475.621 Da

Chemical component information

ChemComp, No image

ChemComp-PRD_000907:
Unknown entry / inhibitor*YM

Macromolecule #36: ADENOSINE-5'-TRIPHOSPHATE

• Macromolecule: Name: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 36 / Number of copies: 4 / Formula: ATP
• Molecular weight: Theoretical: 507.181 Da

Chemical component information

ChemComp-ATP:
ADENOSINE-5'-TRIPHOSPHATE / ATP, energy-carrying molecule*YM

Macromolecule #37: MAGNESIUM ION

• Macromolecule: Name: MAGNESIUM ION / type: ligand / ID: 37 / Number of copies: 4 / Formula: MG
• Molecular weight: Theoretical: 24.305 Da

Macromolecule #38: ADENOSINE-5'-DIPHOSPHATE

• Macromolecule: Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 38 / Number of copies: 1 / Formula: ADP
• Molecular weight: Theoretical: 427.201 Da

Chemical component information

ChemComp-ADP:
ADENOSINE-5'-DIPHOSPHATE / ADP, energy-carrying molecule*YM

Macromolecule #39: ZINC ION

• Macromolecule: Name: ZINC ION / type: ligand / ID: 39 / Number of copies: 1 / Formula: ZN
• Molecular weight: Theoretical: 65.409 Da

Experimental details

Structure determination

• Method: cryo EM
• Processing: single particle reconstruction
• Aggregation state: particle

Sample preparation

• Buffer: pH: 7.6 ; Details: 50 mM Tris, pH 7.5, 150 mM NaCl, 20 mM KCl,5 mM MgCl2, 1 mM TECP,
• Grid: Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 80 sec. / Details: 30mA
• Vitrification: Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
• Details: In Vitro Reconstituted MIDN-26S proteasome complex

Electron microscopy

• Microscope: TFS KRIOS
• Specialist optics: Energy filter - Name: GIF Bioquantum
• Image recording: Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 3 / Number real images: 20794 / Average electron dose: 50.0 e/Ų
• Electron beam: Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
• Electron optics: C2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.7 µm / Nominal defocus min: 1.1 µm / Nominal magnification: 81000
• Sample stage: Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
• Experimental equipment: Model: Titan Krios / Image courtesy: FEI Company

Image processing

• Particle selection: Number selected: 939289
• CTF correction: Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
• Startup model: Type of model: OTHER / Details: ab-initio reconstruction
• Final reconstruction: Applied symmetry - Point group: C₁ (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF; Details: Composite map generated from homogenous refinement cryo-EM of consus map and local refined focussed maps; Number images used: 232000
• Initial angle assignment: Type: MAXIMUM LIKELIHOOD
• Final angle assignment: Type: MAXIMUM LIKELIHOOD
• Final 3D classification: Number classes: 6

Atomic model buiding 1

Initial model

PDB ID:

6mse

Chain - Source name: PDB / Chain - Initial model type: experimental model

• Refinement: Space: REAL / Protocol: RIGID BODY FIT

Output model

PDB-9nkg:
Structure of substrate engaged MIDN-bound human 26S proteasome, EB-MIDN (Composite map)