9h9i

Complex 2 (HEAD) 30S-IF1-IF3-tRNA-GE81112

Method: ELECTRON MICROSCOPY Dmax: 146.8 Å Quality: GOOD

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

Small ribosomal subunit protein uS2

Escherichia coli

UniProt P0A7V0

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–RNA Heteromer Protein × 8 RNA 3 PDB declaration: 11-meric(11) Consistent with all polymer counts Chain B; UniProt 1–241 Not recorded 16S RNA (head domain) × 1 ;mRNA (5'-R(P*AP*UP*GP*U)-3') ; × 1 ;t-RNA (5'-R(P*UP*CP*GP*GP*GP*CP*UP*CP*AP*UP*AP*AP*CP*CP*CP*GP*A)-3') ; × 1 Small ribosomal subunit protein uS3 × 1 (P0A7V3) Small ribosomal subunit protein uS7 × 1 (P02359) Small ribosomal subunit protein uS9 × 1 (P0A7X3) Small ribosomal subunit protein uS10 × 1 (P0A7R5) Small ribosomal subunit protein uS13 × 1 (P0A7S9) Small ribosomal subunit protein uS14 × 1 (P0AG59) Small ribosomal subunit protein uS19 × 1 (P0A7U3) MG MAGNESIUM ION × 49 ZN ZINC ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.20 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.

400 other PDB entries and 452 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS2_ECOLI
Isoform
PDB entities 4
Chains and sequence ranges Author chain B; PDBConstruct 1–241; UniProt 1–241

Small ribosomal subunit protein uS3

Escherichia coli

UniProt P0A7V3

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–RNA Heteromer Protein × 8 RNA 3 PDB declaration: 11-meric(11) Consistent with all polymer counts Chain C; UniProt 1–233 Not recorded 16S RNA (head domain) × 1 ;mRNA (5'-R(P*AP*UP*GP*U)-3') ; × 1 ;t-RNA (5'-R(P*UP*CP*GP*GP*GP*CP*UP*CP*AP*UP*AP*AP*CP*CP*CP*GP*A)-3') ; × 1 Small ribosomal subunit protein uS2 × 1 (P0A7V0) Small ribosomal subunit protein uS7 × 1 (P02359) Small ribosomal subunit protein uS9 × 1 (P0A7X3) Small ribosomal subunit protein uS10 × 1 (P0A7R5) Small ribosomal subunit protein uS13 × 1 (P0A7S9) Small ribosomal subunit protein uS14 × 1 (P0AG59) Small ribosomal subunit protein uS19 × 1 (P0A7U3) MG MAGNESIUM ION × 49 ZN ZINC ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.20 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.

371 other PDB entries and 417 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS3_ECOLI
Isoform
PDB entities 5
Chains and sequence ranges Author chain C; PDBConstruct 1–233; UniProt 1–233

Small ribosomal subunit protein uS7

Escherichia coli

UniProt P02359

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–RNA Heteromer Protein × 8 RNA 3 PDB declaration: 11-meric(11) Consistent with all polymer counts Chain G; UniProt 1–179 Not recorded 16S RNA (head domain) × 1 ;mRNA (5'-R(P*AP*UP*GP*U)-3') ; × 1 ;t-RNA (5'-R(P*UP*CP*GP*GP*GP*CP*UP*CP*AP*UP*AP*AP*CP*CP*CP*GP*A)-3') ; × 1 Small ribosomal subunit protein uS2 × 1 (P0A7V0) Small ribosomal subunit protein uS3 × 1 (P0A7V3) Small ribosomal subunit protein uS9 × 1 (P0A7X3) Small ribosomal subunit protein uS10 × 1 (P0A7R5) Small ribosomal subunit protein uS13 × 1 (P0A7S9) Small ribosomal subunit protein uS14 × 1 (P0AG59) Small ribosomal subunit protein uS19 × 1 (P0A7U3) MG MAGNESIUM ION × 49 ZN ZINC ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.20 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.

503 other PDB entries and 548 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS7_ECOLI
Isoform
PDB entities 6
Chains and sequence ranges Author chain G; PDBConstruct 1–179; UniProt 1–179

Small ribosomal subunit protein uS9

Escherichia coli

UniProt P0A7X3

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–RNA Heteromer Protein × 8 RNA 3 PDB declaration: 11-meric(11) Consistent with all polymer counts Chain I; UniProt 1–130 Not recorded 16S RNA (head domain) × 1 ;mRNA (5'-R(P*AP*UP*GP*U)-3') ; × 1 ;t-RNA (5'-R(P*UP*CP*GP*GP*GP*CP*UP*CP*AP*UP*AP*AP*CP*CP*CP*GP*A)-3') ; × 1 Small ribosomal subunit protein uS2 × 1 (P0A7V0) Small ribosomal subunit protein uS3 × 1 (P0A7V3) Small ribosomal subunit protein uS7 × 1 (P02359) Small ribosomal subunit protein uS10 × 1 (P0A7R5) Small ribosomal subunit protein uS13 × 1 (P0A7S9) Small ribosomal subunit protein uS14 × 1 (P0AG59) Small ribosomal subunit protein uS19 × 1 (P0A7U3) MG MAGNESIUM ION × 49 ZN ZINC ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.20 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.

377 other PDB entries and 423 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS9_ECOLI
Isoform
PDB entities 7
Chains and sequence ranges Author chain I; PDBConstruct 1–130; UniProt 1–130

Small ribosomal subunit protein uS10

Escherichia coli

UniProt P0A7R5

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–RNA Heteromer Protein × 8 RNA 3 PDB declaration: 11-meric(11) Consistent with all polymer counts Chain J; UniProt 1–103 Not recorded 16S RNA (head domain) × 1 ;mRNA (5'-R(P*AP*UP*GP*U)-3') ; × 1 ;t-RNA (5'-R(P*UP*CP*GP*GP*GP*CP*UP*CP*AP*UP*AP*AP*CP*CP*CP*GP*A)-3') ; × 1 Small ribosomal subunit protein uS2 × 1 (P0A7V0) Small ribosomal subunit protein uS3 × 1 (P0A7V3) Small ribosomal subunit protein uS7 × 1 (P02359) Small ribosomal subunit protein uS9 × 1 (P0A7X3) Small ribosomal subunit protein uS13 × 1 (P0A7S9) Small ribosomal subunit protein uS14 × 1 (P0AG59) Small ribosomal subunit protein uS19 × 1 (P0A7U3) MG MAGNESIUM ION × 49 ZN ZINC ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.20 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.

380 other PDB entries and 431 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS10_ECOLI
Isoform
PDB entities 8
Chains and sequence ranges Author chain J; PDBConstruct 1–103; UniProt 1–103

Small ribosomal subunit protein uS13

Escherichia coli

UniProt P0A7S9

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–RNA Heteromer Protein × 8 RNA 3 PDB declaration: 11-meric(11) Consistent with all polymer counts Chain M; UniProt 1–118 Not recorded 16S RNA (head domain) × 1 ;mRNA (5'-R(P*AP*UP*GP*U)-3') ; × 1 ;t-RNA (5'-R(P*UP*CP*GP*GP*GP*CP*UP*CP*AP*UP*AP*AP*CP*CP*CP*GP*A)-3') ; × 1 Small ribosomal subunit protein uS2 × 1 (P0A7V0) Small ribosomal subunit protein uS3 × 1 (P0A7V3) Small ribosomal subunit protein uS7 × 1 (P02359) Small ribosomal subunit protein uS9 × 1 (P0A7X3) Small ribosomal subunit protein uS10 × 1 (P0A7R5) Small ribosomal subunit protein uS14 × 1 (P0AG59) Small ribosomal subunit protein uS19 × 1 (P0A7U3) MG MAGNESIUM ION × 49 ZN ZINC ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.20 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.

376 other PDB entries and 422 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS13_ECOLI
Isoform
PDB entities 9
Chains and sequence ranges Author chain M; PDBConstruct 1–118; UniProt 1–118

Small ribosomal subunit protein uS14

Escherichia coli

UniProt P0AG59

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–RNA Heteromer Protein × 8 RNA 3 PDB declaration: 11-meric(11) Consistent with all polymer counts Chain N; UniProt 1–101 Not recorded 16S RNA (head domain) × 1 ;mRNA (5'-R(P*AP*UP*GP*U)-3') ; × 1 ;t-RNA (5'-R(P*UP*CP*GP*GP*GP*CP*UP*CP*AP*UP*AP*AP*CP*CP*CP*GP*A)-3') ; × 1 Small ribosomal subunit protein uS2 × 1 (P0A7V0) Small ribosomal subunit protein uS3 × 1 (P0A7V3) Small ribosomal subunit protein uS7 × 1 (P02359) Small ribosomal subunit protein uS9 × 1 (P0A7X3) Small ribosomal subunit protein uS10 × 1 (P0A7R5) Small ribosomal subunit protein uS13 × 1 (P0A7S9) Small ribosomal subunit protein uS19 × 1 (P0A7U3) MG MAGNESIUM ION × 49 ZN ZINC ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.20 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.

371 other PDB entries and 415 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS14_ECOLI
Isoform
PDB entities 10
Chains and sequence ranges Author chain N; PDBConstruct 1–101; UniProt 1–101

Small ribosomal subunit protein uS19

Escherichia coli

UniProt P0A7U3

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–RNA Heteromer Protein × 8 RNA 3 PDB declaration: 11-meric(11) Consistent with all polymer counts Chain S; UniProt 1–92 Not recorded 16S RNA (head domain) × 1 ;mRNA (5'-R(P*AP*UP*GP*U)-3') ; × 1 ;t-RNA (5'-R(P*UP*CP*GP*GP*GP*CP*UP*CP*AP*UP*AP*AP*CP*CP*CP*GP*A)-3') ; × 1 Small ribosomal subunit protein uS2 × 1 (P0A7V0) Small ribosomal subunit protein uS3 × 1 (P0A7V3) Small ribosomal subunit protein uS7 × 1 (P02359) Small ribosomal subunit protein uS9 × 1 (P0A7X3) Small ribosomal subunit protein uS10 × 1 (P0A7R5) Small ribosomal subunit protein uS13 × 1 (P0A7S9) Small ribosomal subunit protein uS14 × 1 (P0AG59) MG MAGNESIUM ION × 49 ZN ZINC ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.20 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.

374 other PDB entries and 419 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS19_ECOLI
Isoform
PDB entities 11
Chains and sequence ranges Author chain S; PDBConstruct 1–92; UniProt 1–92

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 9h9i

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9h9i
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9h9i
Deposition date deposition_date2024-10-31
Structure title titleComplex 2 (HEAD) 30S-IF1-IF3-tRNA-GE81112
Keywords keywordsAntibiotic, initiation factor, GE81112, 30S, RIBOSOME; RIBOSOME
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier42.58
Radius of gyration Rg (electron density) rg_electron43.71
Forward intensity I(0) i02301120000.00
Molecular weight molecular_weight279720.0 kDa
Excluded volume excluded_volume300770 ų
Envelope volume envelope_volume460090 ų
Hydration-shell volume shell_volume86027 ų
Envelope diameter envelope_diameter162.0
Shell Rg shell_rg49.86
Envelope Rg envelope_rg43.71
Shape Rg shape_rg43.77
Total Rg total_rg43.78
Total atoms total_atoms18959
Residues n_residues1576
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 dmax146.8
Rg (real space) rg_real42.53
Rg uncertainty (real space) rg_real_error1.05
I(0) (real space) i0_real2.3010e+09
I(0) uncertainty (real space) i0_real_error4.1600e+07
Rg (reciprocal space) rg_reciprocal42.58
I(0) (reciprocal space) i0_reciprocal2301000000.0000
Solution quality estimate total_estimate0.8579
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary51.6
Skewness Skewness skewness0.393
Kurtosis Kurtosis kurtosis-0.034
Angular range angular_range— – 0.1850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha206300000.0000
Real-space data points n_real_points38
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.746; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.915

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (13)

8. Citations (1)

9. Files and Curves (10)