5l4k

The human 26S proteasome lid

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

26S proteasome non-ATPase regulatory subunit 4

OrganismNot specified

UniProt P55036

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSMD4_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain W; PDBConstruct 1–377; UniProt 1–377

26S proteasome non-ATPase regulatory subunit 14

OrganismNot specified

UniProt O00487

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSDE_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain V; PDBConstruct 1–310; UniProt 1–310

26S proteasome non-ATPase regulatory subunit 8

OrganismNot specified

UniProt P48556

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSMD8_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain T; PDBConstruct 1–350; UniProt 1–350

26S proteasome complex subunit DSS1

OrganismNot specified

UniProt P60896

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name DSS1_HUMAN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain Y; PDBConstruct 1–70; UniProt 1–70

26S proteasome non-ATPase regulatory subunit 2

OrganismNot specified

UniProt Q13200

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSMD2_HUMAN
Isoform —
PDB entities 5
Chains and sequence ranges Author chain Z; PDBConstruct 1–908; UniProt 1–908

26S proteasome non-ATPase regulatory subunit 1

OrganismNot specified

UniProt Q99460

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSMD1_HUMAN
Isoform —
PDB entities 6
Chains and sequence ranges Author chain N; PDBConstruct 1–953; UniProt 1–953

26S proteasome non-ATPase regulatory subunit 3

OrganismNot specified

UniProt O43242

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSMD3_HUMAN
Isoform —
PDB entities 7
Chains and sequence ranges Author chain S; PDBConstruct 1–534; UniProt 1–534

26S proteasome non-ATPase regulatory subunit 12

OrganismNot specified

UniProt O00232

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSD12_HUMAN
Isoform —
PDB entities 8
Chains and sequence ranges Author chain P; PDBConstruct 1–456; UniProt 1–456

26S proteasome non-ATPase regulatory subunit 11

OrganismNot specified

UniProt O00231

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSD11_HUMAN
Isoform —
PDB entities 9
Chains and sequence ranges Author chain Q; PDBConstruct 1–422; UniProt 1–422

26S proteasome non-ATPase regulatory subunit 6

OrganismNot specified

UniProt Q15008

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSMD6_HUMAN
Isoform —
PDB entities 10
Chains and sequence ranges Author chain R; PDBConstruct 1–389; UniProt 1–389

26S proteasome non-ATPase regulatory subunit 7

OrganismNot specified

UniProt P51665

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSMD7_HUMAN
Isoform —
PDB entities 11
Chains and sequence ranges Author chain U; PDBConstruct 1–324; UniProt 1–324

26S proteasome non-ATPase regulatory subunit 13

OrganismNot specified

UniProt Q9UNM6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 12 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome complex subunit DSS1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 2 × 1 (Q13200) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PSD13_HUMAN
Isoform —
PDB entities 12
Chains and sequence ranges Author chain O; PDBConstruct 1–376; UniProt 1–376

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id5l4k
Deposition date deposition_date2016-05-25
Structure title titleThe human 26S proteasome lid
Keywords keywordsproteostasis, AAA-ATPase, structural protein; STRUCTURAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

5l4k__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

5l4k__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

5l4k__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)73.15 Å
Rg (electron density)72.91 Å
Total Rg72.97 Å
Atom count79649
Residues5000
Excluded volume709600 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 5l4k__assembly_1__model_1 dodecameric (12) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (12)

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6. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd5l4kw_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.62 — vWA-like
Superfamily Superfamily superfamilyc.62.1 — vWA-like
Family Family familyc.62.1.1 — Integrin A (or I) domain
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7. Citations (1)