1s03

The Structure of a Ribosomal Protein S8/spc Operon mRNA Complex

Method: X-RAY DIFFRACTION Dmax: 129.8 Å Quality: REASONABLE

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

30S ribosomal protein S8

OrganismNot specified

UniProt P0A7W7

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 Monomer Protein × 1 RNA 1 PDB declaration: dimeric(2) Consistent with all polymer counts Chain H; UniProt 1–129 Not recorded 47-MER × 1 ZN ZINC ION × 9 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.2;296 K;PEG 8000, zinc acetate, sodium acetate buffer, pH 5.2, VAPOR DIFFUSION, HANGING DROP, temperature 296K Resolution 2.70 Å R-free 0.273
2 Protein–RNA Monomer Protein × 1 RNA 1 PDB declaration: dimeric(2) Consistent with all polymer counts Chain G; UniProt 1–129 Not recorded 47-MER × 1 ZN ZINC ION × 8 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.2;296 K;PEG 8000, zinc acetate, sodium acetate buffer, pH 5.2, VAPOR DIFFUSION, HANGING DROP, temperature 296K Resolution 2.70 Å R-free 0.273

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.

390 other PDB entries and 436 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RS8_ECOLI
Isoform
PDB entities 2
Chains and sequence ranges Author chain G; PDBConstruct 1–129; UniProt 1–129 Author chain H; PDBConstruct 1–129; UniProt 1–129

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 1s03

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1s03
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1s03
Deposition date deposition_date2003-12-29
Structure title titleThe Structure of a Ribosomal Protein S8/spc Operon mRNA Complex
Keywords keywordsprotein-RNA complex, ribosomal, spc operon, TRANSCRIPTION-RNA COMPLEX; TRANSCRIPTION/RNA
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier38.14
Radius of gyration Rg (electron density) rg_electron38.43
Forward intensity I(0) i0104108000.00
Molecular weight molecular_weight58999.0 kDa
Excluded volume excluded_volume63692 ų
Envelope volume envelope_volume101270 ų
Hydration-shell volume shell_volume23368 ų
Envelope diameter envelope_diameter129.0
Shell Rg shell_rg41.03
Envelope Rg envelope_rg37.33
Shape Rg shape_rg38.40
Total Rg total_rg38.62
Total atoms total_atoms3946
Residues n_residues347
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 dmax129.8
Rg (real space) rg_real38.71
Rg uncertainty (real space) rg_real_error1.59
I(0) (real space) i0_real1.0410e+08
I(0) uncertainty (real space) i0_real_error1.8460e+06
Rg (reciprocal space) rg_reciprocal38.37
I(0) (reciprocal space) i0_reciprocal104100000.0000
Solution quality estimate total_estimate0.5166
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.3
Skewness Skewness skewness0.411
Kurtosis Kurtosis kurtosis-0.791
Angular range angular_range— – 0.2050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2281000.0000
Real-space data points n_real_points42
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.502; Stabil: 1.000; Sysdev: 0.132; Positv: 1.000; Valcen: 0.279; Smooth: 0.530

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1s03g_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.140 — Ribosomal protein S8
Superfamily Superfamily superfamilyd.140.1 — Ribosomal protein S8
Family Family familyd.140.1.1 — Ribosomal protein S8
Domain ID domain_idd1s03h_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.140 — Ribosomal protein S8
Superfamily Superfamily superfamilyd.140.1 — Ribosomal protein S8
Family Family familyd.140.1.1 — Ribosomal protein S8

CATH v4.4 (4 domains)

Domain ID domain_id1s03G01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1370 — Ribosomal Protein S8; Chain: A, domain 1
Homologous superfamily homologous superfamily30
Domain ID domain_id1s03G02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily10
Domain ID domain_id1s03H01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1370 — Ribosomal Protein S8; Chain: A, domain 1
Homologous superfamily homologous superfamily30
Domain ID domain_id1s03H02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily10

8. Citations (1)

9. Files and Curves (10)