1rlr

STRUCTURE OF RIBONUCLEOTIDE REDUCTASE PROTEIN R1

Method: X-RAY DIFFRACTION Dmax: 104.5 Å Quality: GOOD

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

RIBONUCLEOTIDE REDUCTASE PROTEIN R1

Escherichia coli

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–761 Not recorded No other associated polymer X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.50 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.

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

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 1rlr

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1rlr
Deposition date deposition_date1994-08-12
Structure title titleSTRUCTURE OF RIBONUCLEOTIDE REDUCTASE PROTEIN R1
Keywords keywordsREDUCTASE (ACTING ON CH2), OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.33
Radius of gyration Rg (electron density) rg_electron27.27
Forward intensity I(0) i0110614000.00
Molecular weight molecular_weight83332.0 kDa
Excluded volume excluded_volume104330 ų
Envelope volume envelope_volume125740 ų
Hydration-shell volume shell_volume37410 ų
Envelope diameter envelope_diameter98.7
Shell Rg shell_rg35.51
Envelope Rg envelope_rg27.65
Shape Rg shape_rg27.28
Total Rg total_rg28.00
Total atoms total_atoms5875
Residues n_residues737
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 dmax104.5
Rg (real space) rg_real28.24
Rg uncertainty (real space) rg_real_error0.94
I(0) (real space) i0_real1.1060e+08
I(0) uncertainty (real space) i0_real_error1.9410e+06
Rg (reciprocal space) rg_reciprocal28.27
I(0) (reciprocal space) i0_reciprocal110600000.0000
Solution quality estimate total_estimate0.7563
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary98.8
Skewness Skewness skewness0.315
Kurtosis Kurtosis kurtosis-0.267
Angular range angular_range— – 0.2800 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha54580000.0000
Real-space data points n_real_points57
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.627; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.945; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1rlra1
Class classa — All alpha proteins
Fold Fold folda.98 — R1 subunit of ribonucleotide reductase, N-terminal domain
Superfamily Superfamily superfamilya.98.1 — R1 subunit of ribonucleotide reductase, N-terminal domain
Family Family familya.98.1.1 — R1 subunit of ribonucleotide reductase, N-terminal domain
Domain ID domain_idd1rlra2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.7 — PFL-like glycyl radical enzymes
Superfamily Superfamily superfamilyc.7.1 — PFL-like glycyl radical enzymes
Family Family familyc.7.1.2 — R1 subunit of ribonucleotide reductase, C-terminal domain

CATH v4.4 (1 domains)

Domain ID domain_id1rlrA02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology70 — Anaerobic Ribonucleotide-triphosphate Reductase Large Chain
Homologous superfamily homologous superfamily20

8. Citations (2)

9. Files and Curves (10)