9y1o

The structure of the Plasmodium falciparum 20S proteasome

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

Proteasome subunit alpha type-6

Plasmodium falciparum Dd2

UniProt Q8IAR3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q8IAR3_PLAF7
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–260; UniProt 1–260 Author chain O; PDBConstruct 1–260; UniProt 1–260

Proteasome subunit alpha type-2

Plasmodium falciparum Dd2

UniProt C6KST3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C6KST3_PLAF7
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–235; UniProt 1–235 Author chain P; PDBConstruct 1–235; UniProt 1–235

Proteasome subunit alpha type-3

Plasmodium falciparum Dd2

UniProt Q8IDG3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q8IDG3_PLAF7
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–246; UniProt 1–246 Author chain Q; PDBConstruct 1–246; UniProt 1–246

Proteasome subunit alpha type-4

Plasmodium falciparum Dd2

UniProt Q8IDG2

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q8IDG2_PLAF7
Isoform —
PDB entities 4
Chains and sequence ranges Author chain D; PDBConstruct 1–241; UniProt 1–241 Author chain R; PDBConstruct 1–241; UniProt 1–241

Proteasome subunit alpha type-5

Plasmodium falciparum Dd2

UniProt A0A0L7LVZ5

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name A0A0L7LVZ5_PLAF4
Isoform —
PDB entities 5
Chains and sequence ranges Author chain E; PDBConstruct 1–256; UniProt 1–256 Author chain S; PDBConstruct 1–256; UniProt 1–256

Proteasome subunit alpha type-1

Plasmodium falciparum Dd2

UniProt Q8IK90

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q8IK90_PLAF7
Isoform —
PDB entities 6
Chains and sequence ranges Author chain F; PDBConstruct 1–254; UniProt 1–254 Author chain T; PDBConstruct 1–254; UniProt 1–254

Proteasome subunit alpha type-3

Plasmodium falciparum Dd2

UniProt O77396

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name O77396_PLAF7
Isoform —
PDB entities 7
Chains and sequence ranges Author chain G; PDBConstruct 1–252; UniProt 1–252 Author chain U; PDBConstruct 1–252; UniProt 1–252

Proteasome endopeptidase complex

Plasmodium falciparum Dd2

UniProt A0A0L7M1M6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name A0A0L7M1M6_PLAF4
Isoform —
PDB entities 8
Chains and sequence ranges Author chain H; PDBConstruct 1–252; UniProt 31–282 Author chain V; PDBConstruct 1–252; UniProt 31–282

Proteasome subunit beta-2

Plasmodium falciparum Dd2

UniProt Q8I6T3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q8I6T3_PLAF7
Isoform —
PDB entities 9
Chains and sequence ranges Author chain I; PDBConstruct 1–229; UniProt 42–270 Author chain W; PDBConstruct 1–229; UniProt 42–270

Proteasome subunit beta-3

Plasmodium falciparum Dd2

UniProt Q8I261

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q8I261_PLAF7
Isoform —
PDB entities 10
Chains and sequence ranges Author chain J; PDBConstruct 1–218; UniProt 1–218 Author chain X; PDBConstruct 1–218; UniProt 1–218

Proteasome subunit beta-4

Plasmodium falciparum Dd2

UniProt Q8IKC9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q8IKC9_PLAF7
Isoform —
PDB entities 11
Chains and sequence ranges Author chain K; PDBConstruct 1–195; UniProt 1–195 Author chain Y; PDBConstruct 1–195; UniProt 1–195

Proteasome subunit beta-5

Plasmodium falciparum Dd2

UniProt Q8IJT1

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta × 2 (A0A0L7LW03) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q8IJT1_PLAF7
Isoform —
PDB entities 12
Chains and sequence ranges Author chain L; PDBConstruct 1–211; UniProt 61–271 Author chain Z; PDBConstruct 1–211; UniProt 61–271

Proteasome subunit beta

Plasmodium falciparum Dd2

UniProt A0A0L7LW03

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A2I0BU46) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name A0A0L7LW03_PLAF4
Isoform —
PDB entities 13
Chains and sequence ranges Author chain N; PDBConstruct 1–265; UniProt 1–265 Author chain b; PDBConstruct 1–265; UniProt 1–265

Proteasome subunit beta

Plasmodium falciparum Dd2

UniProt A0A2I0BU46

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 28 Proteasome subunit alpha type-6 × 2 (Q8IAR3) Proteasome subunit alpha type-2 × 2 (C6KST3) Proteasome subunit alpha type-3 × 2 (Q8IDG3) Proteasome subunit alpha type-4 × 2 (Q8IDG2) Proteasome subunit alpha type-5 × 2 (A0A0L7LVZ5) Proteasome subunit alpha type-1 × 2 (Q8IK90) Proteasome subunit alpha type-3 × 2 (O77396) Proteasome endopeptidase complex × 2 (A0A0L7M1M6) Proteasome subunit beta-2 × 2 (Q8I6T3) Proteasome subunit beta-3 × 2 (Q8I261) Proteasome subunit beta-4 × 2 (Q8IKC9) Proteasome subunit beta-5 × 2 (Q8IJT1) Proteasome subunit beta × 2 (A0A0L7LW03) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name A0A2I0BU46_PLAFO
Isoform —
PDB entities 14
Chains and sequence ranges Author chain M; PDBConstruct 1–240; UniProt 1–240 Author chain a; PDBConstruct 1–240; UniProt 1–240

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_id9y1o
Deposition date deposition_date2025-08-29
Structure title titleThe structure of the Plasmodium falciparum 20S proteasome
Keywords keywordsProteasome, 20S proteasome, Plasmodium falciparum, HYDROLASE; HYDROLASE
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.

9y1o__assembly_1__model_1

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

Download this curve (.dat)

9y1o__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.

9y1o__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)60.53 Å
Rg (electron density)60.10 Å
Total Rg60.30 Å
Atom count94870
Residues6250
Excluded volume860270 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 9y1o__assembly_1__model_1 28-meric (28) 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 (14)

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7. Citations (1)