9v28

Cryo- EM structure of small subunit (head) of 75S ribosome with A/P- & P/E- tRNAs from Entamoeba histolytica

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

40S ribosomal protein S25

OrganismNot specified

UniProt C4M9F4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4M9F4_ENTH1
Isoform —
PDB entities 1
Chains and sequence ranges Author chain sA; PDBConstruct 1–137; UniProt 1–137

40S ribosomal protein S28, putative

OrganismNot specified

UniProt C4LZQ8

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4LZQ8_ENTH1
Isoform —
PDB entities 2
Chains and sequence ranges Author chain sD; PDBConstruct 1–69; UniProt 1–69

Ribosomal protein S29, putative

OrganismNot specified

UniProt C4LW10

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4LW10_ENTH1
Isoform —
PDB entities 3
Chains and sequence ranges Author chain sE; PDBConstruct 1–56; UniProt 1–56

40S ribosomal protein S3

OrganismNot specified

UniProt C4LT02

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4LT02_ENTH1
Isoform —
PDB entities 5
Chains and sequence ranges Author chain sd; PDBConstruct 1–244; UniProt 1–244

Small ribosomal subunit protein uS7

OrganismNot specified

UniProt O15587

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RS5_ENTH1
Isoform —
PDB entities 6
Chains and sequence ranges Author chain sg; PDBConstruct 1–206; UniProt 1–206

40S ribosomal protein S10, putative

OrganismNot specified

UniProt C4LVC0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4LVC0_ENTH1
Isoform —
PDB entities 7
Chains and sequence ranges Author chain sl; PDBConstruct 1–127; UniProt 1–127

40S ribosomal protein S15, putative

OrganismNot specified

UniProt C4M7H3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4M7H3_ENTH1
Isoform —
PDB entities 8
Chains and sequence ranges Author chain sq; PDBConstruct 1–144; UniProt 1–144

40S ribosomal protein S16, putative

OrganismNot specified

UniProt C4M2R7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4M2R7_ENTH1
Isoform —
PDB entities 9
Chains and sequence ranges Author chain ss; PDBConstruct 1–158; UniProt 1–158

40S ribosomal protein S17, putative

OrganismNot specified

UniProt C4M0Z2

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4M0Z2_ENTH1
Isoform —
PDB entities 10
Chains and sequence ranges Author chain st; PDBConstruct 1–117; UniProt 1–117

Small ribosomal subunit protein uS13

OrganismNot specified

UniProt P48151

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein eS19 × 1 (O15631) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RS18_ENTH1
Isoform —
PDB entities 11
Chains and sequence ranges Author chain su; PDBConstruct 1–155; UniProt 1–155

Small ribosomal subunit protein eS19

OrganismNot specified

UniProt O15631

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) 40S ribosomal protein S20, putative × 1 (C4M5V7) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RS19_ENTH1
Isoform —
PDB entities 12
Chains and sequence ranges Author chain sv; PDBConstruct 1–155; UniProt 1–155

40S ribosomal protein S20, putative

OrganismNot specified

UniProt C4M5V7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–RNA Heteromer Protein 12 RNA 1 40S ribosomal protein S25 × 1 (C4M9F4) 40S ribosomal protein S28, putative × 1 (C4LZQ8) Ribosomal protein S29, putative × 1 (C4LW10) 17S rRNA × 1 40S ribosomal protein S3 × 1 (C4LT02) Small ribosomal subunit protein uS7 × 1 (O15587) 40S ribosomal protein S10, putative × 1 (C4LVC0) 40S ribosomal protein S15, putative × 1 (C4M7H3) 40S ribosomal protein S16, putative × 1 (C4M2R7) 40S ribosomal protein S17, putative × 1 (C4M0Z2) Small ribosomal subunit protein uS13 × 1 (P48151) Small ribosomal subunit protein eS19 × 1 (O15631) Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name C4M5V7_ENTH1
Isoform —
PDB entities 13
Chains and sequence ranges Author chain sw; PDBConstruct 1–118; UniProt 1–118

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_id9v28
Deposition date deposition_date2025-05-19
Last revision last_revision2025-10-08
Structure title titleCryo- EM structure of small subunit (head) of 75S ribosome with A/P- & P/E- tRNAs from Entamoeba histolytica
Keywords keywordsSSU-head of 75S Ribosome, A/P-tRNA, P/E-tRNA, Entamoeba histolytica, Ribosome; RIBOSOME
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.

9v28__assembly_1__model_1

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

Download this curve (.dat)

9v28__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.

9v28__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)40.86 Å
Rg (electron density)41.04 Å
Total Rg41.31 Å
Atom count19649
Residues1671
Excluded volume314900 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 9v28__assembly_1__model_1 tridecameric (13) 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 (13)

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7. Citations (1)