8vhn

Crystal Structure of E. coli class Ia ribonucleotide reductase alpha subunit bound to two ATP molecules

Method: X-RAY DIFFRACTION Dmax: 129.1 Å Quality: REASONABLE

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

Ribonucleoside-diphosphate reductase 1 subunit alpha

Escherichia coli K-12

UniProt P00452

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–761 Chain B; UniProt 1–761 Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 6 MG MAGNESIUM ION × 4 GOL GLYCEROL × 2 MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293.15 K;8.0% (w/vol)PEG3350, 80 mM HEPES pH 7.3, 280 mM magnesium chloride, 4% (vol/vol) glycerol, 1.0% CYMAL-1 detergent Resolution 2.62 Å R-free 0.209

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.

33 other PDB entries and 104 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RIR1_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–761; UniProt 1–761 Author chain B; PDBConstruct 1–761; UniProt 1–761

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 8vhn

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8vhn
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8vhn
Deposition date deposition_date2024-01-02
Structure title titleCrystal Structure of E. coli class Ia ribonucleotide reductase alpha subunit bound to two ATP molecules
Keywords keywordsRibonucleotide reductase, allosteric regulation, nucleotide binding, subunit, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier39.43
Radius of gyration Rg (electron density) rg_electron39.02
Forward intensity I(0) i0442773000.00
Molecular weight molecular_weight169320.0 kDa
Excluded volume excluded_volume210690 ų
Envelope volume envelope_volume267140 ų
Hydration-shell volume shell_volume57032 ų
Envelope diameter envelope_diameter137.6
Shell Rg shell_rg44.86
Envelope Rg envelope_rg38.61
Shape Rg shape_rg39.04
Total Rg total_rg39.26
Total atoms total_atoms11900
Residues n_residues1465
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 dmax129.1
Rg (real space) rg_real39.48
Rg uncertainty (real space) rg_real_error1.04
I(0) (real space) i0_real4.4280e+08
I(0) uncertainty (real space) i0_real_error8.4010e+06
Rg (reciprocal space) rg_reciprocal39.46
I(0) (reciprocal space) i0_reciprocal442800000.0000
Solution quality estimate total_estimate0.6607
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary42.0
Skewness Skewness skewness0.334
Kurtosis Kurtosis kurtosis-0.512
Angular range angular_range— – 0.2000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha56700000.0000
Real-space data points n_real_points41
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.905; Stabil: 1.000; Sysdev: 0.013; Positv: 1.000; Valcen: 0.986; Smooth: 0.845

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)