8vhr

Crystal structure of E. coli class Ia ribonucleotide reductase alpha subunit W28A variant bound to dATP and GTP

Method: X-RAY DIFFRACTION Dmax: 193.6 Å Quality: GOOD

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 1–760 Chain B; UniProt 1–760 Mutation:W28A DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 4 GTP GUANOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277.15 K;6.5-7.0% (w/vol) PEG3350, 0.1M HEPES 7.0, 0.35M MgSO4, 5% (vol/vol) glycerol Resolution 3.55 Å R-free 0.243
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–760 Chain D; UniProt 1–760 Mutation:W28A DTP 2'-DEOXYADENOSINE 5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 4 GTP GUANOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277.15 K;6.5-7.0% (w/vol) PEG3350, 0.1M HEPES 7.0, 0.35M MgSO4, 5% (vol/vol) glycerol Resolution 3.55 Å R-free 0.243

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 103 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 20–779; UniProt 1–760 Author chain B; PDBConstruct 20–779; UniProt 1–760 Author chain C; PDBConstruct 20–779; UniProt 1–760 Author chain D; PDBConstruct 20–779; UniProt 1–760

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 8vhr

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id8vhr
Deposition date deposition_date2024-01-02
Structure title titleCrystal structure of E. coli class Ia ribonucleotide reductase alpha subunit W28A variant bound to dATP and GTP
Keywords keywordsRibonucleotide reductase, allosteric regulation, nucleotide binding, subunit interaction, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier55.70
Radius of gyration Rg (electron density) rg_electron55.87
Forward intensity I(0) i01671470000.00
Molecular weight molecular_weight336960.0 kDa
Excluded volume excluded_volume419340 ų
Envelope volume envelope_volume575290 ų
Hydration-shell volume shell_volume87698 ų
Envelope diameter envelope_diameter208.5
Shell Rg shell_rg55.78
Envelope Rg envelope_rg55.39
Shape Rg shape_rg55.88
Total Rg total_rg55.80
Total atoms total_atoms23688
Residues n_residues2930
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 dmax193.6
Rg (real space) rg_real56.00
Rg uncertainty (real space) rg_real_error2.48
I(0) (real space) i0_real1.6710e+09
I(0) uncertainty (real space) i0_real_error3.9490e+07
Rg (reciprocal space) rg_reciprocal55.44
I(0) (reciprocal space) i0_reciprocal1670000000.0000
Solution quality estimate total_estimate0.8475
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary55.3
Skewness Skewness skewness0.479
Kurtosis Kurtosis kurtosis-0.208
Angular range angular_range— – 0.1400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha186600000.0000
Real-space data points n_real_points29
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.815; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.949; Smooth: 0.620

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)