9u4m

Focused refinement of 19S in the substrate-engaged human 26S proteasome bound to midnolin with RPT6 at top of spiral staircase

Method: ELECTRON MICROSCOPY Dmax: 217.4 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

26S proteasome non-ATPase regulatory subunit 6

OrganismNot specified

UniProt Q15008

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain Y; UniProt 1–389 Not recorded 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

115 other PDB entries and 115 assemblies. Open the comparison page and filter oligomeric states

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

26S proteasome non-ATPase regulatory subunit 13

OrganismNot specified

UniProt Q9UNM6

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain a; UniProt 1–376 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

114 other PDB entries and 114 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSD13_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain a; PDBConstruct 1–376; UniProt 1–376

26S proteasome regulatory subunit 4

OrganismNot specified

UniProt P62191

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain B; UniProt 1–440 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

130 other PDB entries and 130 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PRS4_HUMAN
Isoform
PDB entities 4
Chains and sequence ranges Author chain B; PDBConstruct 1–440; UniProt 1–440

26S proteasome non-ATPase regulatory subunit 14

OrganismNot specified

UniProt O00487

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain c; UniProt 2–310 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

121 other PDB entries and 121 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSDE_HUMAN
Isoform
PDB entities 5
Chains and sequence ranges Author chain c; PDBConstruct 1–309; UniProt 2–310

26S proteasome non-ATPase regulatory subunit 7

OrganismNot specified

UniProt P51665

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain Z; UniProt 1–324 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

117 other PDB entries and 120 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSMD7_HUMAN
Isoform
PDB entities 6
Chains and sequence ranges Author chain Z; PDBConstruct 1–324; UniProt 1–324

26S proteasome complex subunit SEM1

OrganismNot specified

UniProt P60896

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain e; UniProt 1–70 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

124 other PDB entries and 126 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SEM1_HUMAN
Isoform
PDB entities 7
Chains and sequence ranges Author chain e; PDBConstruct 1–70; UniProt 1–70

26S proteasome non-ATPase regulatory subunit 1

OrganismNot specified

UniProt Q99460

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain U; UniProt 1–953 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

122 other PDB entries and 125 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSMD1_HUMAN
Isoform
PDB entities 8
Chains and sequence ranges Author chain U; PDBConstruct 1–953; UniProt 1–953

26S proteasome non-ATPase regulatory subunit 12

OrganismNot specified

UniProt O00232

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain W; UniProt 1–456 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

115 other PDB entries and 115 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSD12_HUMAN
Isoform
PDB entities 9
Chains and sequence ranges Author chain W; PDBConstruct 1–456; UniProt 1–456

26S proteasome regulatory subunit 7

OrganismNot specified

UniProt P35998

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain A; UniProt 1–433 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

130 other PDB entries and 130 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PRS7_HUMAN
Isoform
PDB entities 10
Chains and sequence ranges Author chain A; PDBConstruct 1–433; UniProt 1–433

26S proteasome regulatory subunit 8

OrganismNot specified

UniProt P62195

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain C; UniProt 9–406 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

127 other PDB entries and 127 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PRS8_HUMAN
Isoform
PDB entities 11
Chains and sequence ranges Author chain C; PDBConstruct 1–398; UniProt 9–406

26S proteasome regulatory subunit 6B

OrganismNot specified

UniProt P43686

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain D; UniProt 1–418 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

130 other PDB entries and 130 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PRS6B_HUMAN
Isoform
PDB entities 12
Chains and sequence ranges Author chain D; PDBConstruct 1–418; UniProt 1–418

Proteasome 26S subunit, ATPase 6

OrganismNot specified

UniProt A0A087X2I1

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain E; UniProt 1–403 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

73 other PDB entries and 73 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A0A087X2I1_HUMAN
Isoform
PDB entities 13
Chains and sequence ranges Author chain E; PDBConstruct 1–403; UniProt 1–403

26S proteasome regulatory subunit 6A

OrganismNot specified

UniProt P17980

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain F; UniProt 1–439 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

129 other PDB entries and 129 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PRS6A_HUMAN
Isoform
PDB entities 14
Chains and sequence ranges Author chain F; PDBConstruct 1–439; UniProt 1–439

26S proteasome non-ATPase regulatory subunit 11

OrganismNot specified

UniProt O00231

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain X; UniProt 1–422 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

115 other PDB entries and 115 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSD11_HUMAN
Isoform
PDB entities 15
Chains and sequence ranges Author chain X; PDBConstruct 1–422; UniProt 1–422

26S proteasome non-ATPase regulatory subunit 3

OrganismNot specified

UniProt O43242

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain V; UniProt 2–534 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

115 other PDB entries and 115 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSMD3_HUMAN
Isoform
PDB entities 16
Chains and sequence ranges Author chain V; PDBConstruct 1–533; UniProt 2–534

26S proteasome non-ATPase regulatory subunit 8

OrganismNot specified

UniProt P48556

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain d; UniProt 2–350 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 4 × 1 (P55036) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

115 other PDB entries and 115 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSMD8_HUMAN
Isoform
PDB entities 17
Chains and sequence ranges Author chain d; PDBConstruct 1–349; UniProt 2–350

26S proteasome non-ATPase regulatory subunit 4

OrganismNot specified

UniProt P55036

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 18 PDB declaration: 18-meric(18) Consistent with protein copy count Chain b; UniProt 1–377 Not recorded 26S proteasome non-ATPase regulatory subunit 6 × 1 (Q15008) 26S proteasome non-ATPase regulatory subunit 13 × 1 (Q9UNM6) substrate peptide × 1 26S proteasome regulatory subunit 4 × 1 (P62191) 26S proteasome non-ATPase regulatory subunit 14 × 1 (O00487) 26S proteasome non-ATPase regulatory subunit 7 × 1 (P51665) 26S proteasome complex subunit SEM1 × 1 (P60896) 26S proteasome non-ATPase regulatory subunit 1 × 1 (Q99460) 26S proteasome non-ATPase regulatory subunit 12 × 1 (O00232) 26S proteasome regulatory subunit 7 × 1 (P35998) 26S proteasome regulatory subunit 8 × 1 (P62195) 26S proteasome regulatory subunit 6B × 1 (P43686) Proteasome 26S subunit, ATPase 6 × 1 (A0A087X2I1) 26S proteasome regulatory subunit 6A × 1 (P17980) 26S proteasome non-ATPase regulatory subunit 11 × 1 (O00231) 26S proteasome non-ATPase regulatory subunit 3 × 1 (O43242) 26S proteasome non-ATPase regulatory subunit 8 × 1 (P48556) ADP ADENOSINE-5'-DIPHOSPHATE × 3 ZN ZINC ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 3 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 4.14 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

124 other PDB entries and 124 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSMD4_HUMAN
Isoform
PDB entities 18
Chains and sequence ranges Author chain b; PDBConstruct 1–377; UniProt 1–377

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.

SAXS scattering curve SAXS Profile

SAXS profile for 9u4m

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9u4m
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9u4m
Deposition date deposition_date2025-03-19
Structure title titleFocused refinement of 19S in the substrate-engaged human 26S proteasome bound to midnolin with RPT6 at top of spiral staircase
Keywords keywordsMidnolin, 26S proteasome, Complex, HYDROLASE; HYDROLASE
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier66.16
Radius of gyration Rg (electron density) rg_electron65.65
Forward intensity I(0) i06113810000.00
Molecular weight molecular_weight668410.0 kDa
Excluded volume excluded_volume840610 ų
Envelope volume envelope_volume1334200 ų
Hydration-shell volume shell_volume167130 ų
Envelope diameter envelope_diameter222.7
Shell Rg shell_rg70.07
Envelope Rg envelope_rg62.86
Shape Rg shape_rg65.64
Total Rg total_rg65.74
Total atoms total_atoms46918
Residues n_residues5894
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax217.4
Rg (real space) rg_real65.69
Rg uncertainty (real space) rg_real_error1.78
I(0) (real space) i0_real6.1140e+09
I(0) uncertainty (real space) i0_real_error1.3210e+08
Rg (reciprocal space) rg_reciprocal66.54
I(0) (reciprocal space) i0_reciprocal6123000000.0000
Solution quality estimate total_estimate0.8633
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary90.6
Skewness Skewness skewness0.129
Kurtosis Kurtosis kurtosis-0.367
Angular range angular_range— – 0.1200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha426900000.0000
Real-space data points n_real_points25
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.829; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.949; Smooth: 0.784

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (22)

8. Citations (1)

9. Files and Curves (10)