7mk1

Structure of a protein-modified aptamer complex

Method: X-RAY DIFFRACTION Dmax: 85.5 Å Quality: GOOD

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

Antiviral innate immune response receptor RIG-I

Homo sapiens

UniProt O95786

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–DNA Monomer Protein × 1 DNA 1 PDB declaration: dimeric(2) Consistent with all polymer counts Chain A; UniProt 801–925 Not recorded DNA (41-MER) × 1 ZN ZINC ION × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;285.15 K;30% PEG3350, 0.01 M Na acetate pH 4.8 Resolution 1.90 Å R-free 0.220
2 Protein–DNA Monomer Protein × 1 DNA 1 PDB declaration: dimeric(2) Consistent with all polymer counts Chain B; UniProt 801–925 Not recorded DNA (41-MER) × 1 ZN ZINC ION × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;285.15 K;30% PEG3350, 0.01 M Na acetate pH 4.8 Resolution 1.90 Å R-free 0.220

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.

43 other PDB entries and 69 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DDX58_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–125; UniProt 801–925 Author chain B; PDBConstruct 1–125; UniProt 801–925

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 7mk1

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7mk1
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7mk1
Deposition date deposition_date2021-04-21
Structure title titleStructure of a protein-modified aptamer complex
Keywords keywordsinnate immunity, IMMUNE SYSTEM, IMMUNE SYSTEM-DNA complex; IMMUNE SYSTEM/DNA
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier27.72
Radius of gyration Rg (electron density) rg_electron26.14
Forward intensity I(0) i083929600.00
Molecular weight molecular_weight58693.0 kDa
Excluded volume excluded_volume67453 ų
Envelope volume envelope_volume86738 ų
Hydration-shell volume shell_volume28403 ų
Envelope diameter envelope_diameter86.0
Shell Rg shell_rg32.76
Envelope Rg envelope_rg25.92
Shape Rg shape_rg26.01
Total Rg total_rg27.02
Total atoms total_atoms4036
Residues n_residues292
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 dmax85.5
Rg (real space) rg_real27.73
Rg uncertainty (real space) rg_real_error0.51
I(0) (real space) i0_real8.3930e+07
I(0) uncertainty (real space) i0_real_error1.2820e+06
Rg (reciprocal space) rg_reciprocal27.73
I(0) (reciprocal space) i0_reciprocal83930000.0000
Solution quality estimate total_estimate0.8975
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary27.0
Skewness Skewness skewness0.280
Kurtosis Kurtosis kurtosis-0.608
Angular range angular_range— – 0.2850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7536000.0000
Real-space data points n_real_points58
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.955; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.816

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)