1pfr

RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE 1 BETA CHAIN

Method: X-RAY DIFFRACTION Dmax: 86.2 Å Quality: GOOD

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

PROTEIN R2 OF RIBONUCLEOTIDE REDUCTASE

Escherichia coli

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–340 Chain B; UniProt 1–340 Mutation:S211A FE FE (III) ION × 4 HG MERCURY (II) ION × 8 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;HANGING DROP VAPOR DIFFUSION. CRYSTALLISED FROM 20% PEG 4000, 0.2M NACL, 0.1M MES PH 6.0, 1MM ETHYLMERCURY SALICYLATE., vapor diffusion - hanging drop Resolution 2.20 Å

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 1
Chains and sequence ranges Author chain A; PDBConstruct 1–340; UniProt 1–340 Author chain B; PDBConstruct 1–340; UniProt 1–340

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 1pfr

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1pfr
Deposition date deposition_date1996-12-03
Structure title titleRIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE 1 BETA CHAIN
Keywords keywords;REDUCTASE, OXIDOREDUCTASE, DNA REPLICATION, IRON, ACTING ON RIBOSE 2'-OH ;; REDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.98
Radius of gyration Rg (electron density) rg_electron25.97
Forward intensity I(0) i0109288000.00
Molecular weight molecular_weight80890.0 kDa
Excluded volume excluded_volume99871 ų
Envelope volume envelope_volume113890 ų
Hydration-shell volume shell_volume35628 ų
Envelope diameter envelope_diameter89.5
Shell Rg shell_rg34.48
Envelope Rg envelope_rg26.25
Shape Rg shape_rg26.00
Total Rg total_rg26.67
Total atoms total_atoms5588
Residues n_residues680
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 dmax86.2
Rg (real space) rg_real26.89
Rg uncertainty (real space) rg_real_error0.52
I(0) (real space) i0_real1.0930e+08
I(0) uncertainty (real space) i0_real_error1.4910e+06
Rg (reciprocal space) rg_reciprocal26.92
I(0) (reciprocal space) i0_reciprocal109300000.0000
Solution quality estimate total_estimate0.8978
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary32.2
Skewness Skewness skewness0.257
Kurtosis Kurtosis kurtosis-0.440
Angular range angular_range— – 0.2950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha22530000.0000
Real-space data points n_real_points60
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.903; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.960

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1pfra_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.2 — Ribonucleotide reductase-like
Domain ID domain_idd1pfrb_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.2 — Ribonucleotide reductase-like

CATH v4.4 (2 domains)

Domain ID domain_id1pfrA00
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_id1pfrB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology620 — Ribonucleotide Reductase, subunit A
Homologous superfamily homologous superfamily20 — Ribonucleotide Reductase, subunit A

8. Citations (2)

9. Files and Curves (10)