5cnu

Crystal structure of the dATP inhibited E. coli class Ia ribonucleotide reductase complex bound to ADP and dGTP at 3.40 Angstroms resolution

Method: X-RAY DIFFRACTION Dmax: 198.8 Å Quality: GOOD

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

Ribonucleoside-diphosphate reductase 1 subunit alpha

Escherichia coli (strain K12)

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 heterocomplex Heteromer Protein × 8 PDB declaration: octameric(8) Consistent with protein copy count Chain A; UniProt 1–761 Chain B; UniProt 1–761 Chain C; UniProt 1–761 Chain D; UniProt 1–761 Not recorded Ribonucleoside-diphosphate reductase 1 subunit beta × 4 (P69924) DGT 2'-DEOXYGUANOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 4 DAT 2'-DEOXYADENOSINE-5'-DIPHOSPHATE × 4 FEO MU-OXO-DIIRON × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;2% (w/v) PEG 3350, 100 mM MOPS pH 7.5, 300 mM Mg(CH3COO)2, 30 mM MgCl2, and 5% (v/v) glycerol Resolution 3.40 Å R-free 0.221

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 Author chain C; PDBConstruct 1–761; UniProt 1–761 Author chain D; PDBConstruct 1–761; UniProt 1–761

Ribonucleoside-diphosphate reductase 1 subunit beta

Escherichia coli (strain K12)

UniProt P69924

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 heterocomplex Heteromer Protein × 8 PDB declaration: octameric(8) Consistent with protein copy count Chain E; UniProt 2–376 Chain F; UniProt 2–376 Chain G; UniProt 2–376 Chain H; UniProt 2–376 Not recorded Ribonucleoside-diphosphate reductase 1 subunit alpha × 4 (P00452) DGT 2'-DEOXYGUANOSINE-5'-TRIPHOSPHATE × 4 MG MAGNESIUM ION × 8 ADP ADENOSINE-5'-DIPHOSPHATE × 4 DAT 2'-DEOXYADENOSINE-5'-DIPHOSPHATE × 4 FEO MU-OXO-DIIRON × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;2% (w/v) PEG 3350, 100 mM MOPS pH 7.5, 300 mM Mg(CH3COO)2, 30 mM MgCl2, and 5% (v/v) glycerol Resolution 3.40 Å R-free 0.221

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.

62 other PDB entries and 126 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RIR2_ECOLI
Isoform
PDB entities 2
Chains and sequence ranges Author chain E; PDBConstruct 1–375; UniProt 2–376 Author chain F; PDBConstruct 1–375; UniProt 2–376 Author chain G; PDBConstruct 1–375; UniProt 2–376 Author chain H; PDBConstruct 1–375; UniProt 2–376

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 5cnu

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5cnu
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id5cnu
Deposition date deposition_date2015-07-18
Structure title titleCrystal structure of the dATP inhibited E. coli class Ia ribonucleotide reductase complex bound to ADP and dGTP at 3.40 Angstroms resolution
Keywords keywordsallostery, substrate specificity, ribonucleotide reductase, nucleotide metabolism, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier70.50
Radius of gyration Rg (electron density) rg_electron70.03
Forward intensity I(0) i03517750000.00
Molecular weight molecular_weight501120.0 kDa
Excluded volume excluded_volume625230 ų
Envelope volume envelope_volume999640 ų
Hydration-shell volume shell_volume116230 ų
Envelope diameter envelope_diameter205.1
Shell Rg shell_rg80.87
Envelope Rg envelope_rg63.68
Shape Rg shape_rg70.04
Total Rg total_rg70.16
Total atoms total_atoms35261
Residues n_residues4352
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 dmax198.8
Rg (real space) rg_real70.23
Rg uncertainty (real space) rg_real_error1.41
I(0) (real space) i0_real3.5180e+09
I(0) uncertainty (real space) i0_real_error7.1310e+07
Rg (reciprocal space) rg_reciprocal71.20
I(0) (reciprocal space) i0_reciprocal3524000000.0000
Solution quality estimate total_estimate0.7890
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary117.5
Skewness Skewness skewness-0.195
Kurtosis Kurtosis kurtosis-0.962
Angular range angular_range— – 0.1100 −1
Current regularization parameter α current_alpha0.0002
Highest regularization parameter α highest_alpha66530000.0000
Real-space data points n_real_points23
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.803; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.844; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (8)

7. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id5cnuA02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology70 — Anaerobic Ribonucleotide-triphosphate Reductase Large Chain
Homologous superfamily homologous superfamily20
Domain ID domain_id5cnuB02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology70 — Anaerobic Ribonucleotide-triphosphate Reductase Large Chain
Homologous superfamily homologous superfamily20
Domain ID domain_id5cnuC02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology70 — Anaerobic Ribonucleotide-triphosphate Reductase Large Chain
Homologous superfamily homologous superfamily20
Domain ID domain_id5cnuD02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology70 — Anaerobic Ribonucleotide-triphosphate Reductase Large Chain
Homologous superfamily homologous superfamily20
Domain ID domain_id5cnuE00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A
Domain ID domain_id5cnuF00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A
Domain ID domain_id5cnuG00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A
Domain ID domain_id5cnuH00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A

8. Citations (1)

9. Files and Curves (10)