1rlr

STRUCTURE OF RIBONUCLEOTIDE REDUCTASE PROTEIN R1

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

RIBONUCLEOTIDE REDUCTASE PROTEIN R1

Escherichia coli

UniProt P00452

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

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.

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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
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1rlr__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1rlr__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1rlr__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)28.33 Å
Rg (electron density)27.27 Å
Total Rg28.00 Å
Atom count5875
Residues737
Excluded volume104330 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1rlr__assembly_1__model_1 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (1)

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6. 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 —
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7. Citations (2)