3ddy

Structure of lumazine protein, an optical transponder of luminescent bacteria

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

Lumazine protein

Photobacterium leiognathi

UniProt Q06877

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 RIBOFLAVIN × 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name LUXP_PHOLE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–186; UniProt 1–186

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_id3ddy
Deposition date deposition_date2008-06-07
Structure title titleStructure of lumazine protein, an optical transponder of luminescent bacteria
Keywords keywordsLuminescent bacteria, Photobacterium leiognathi, lumazine protein, riboflavin synthase, Luminescence, LUMINESCENT PROTEIN; LUMINESCENT PROTEIN
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.

3ddy__assembly_1__model_1

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

Download this curve (.dat)

3ddy__assembly_1__model_1 | I(q)

10-2 10-1 105 106 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3ddy__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)17.06 Å
Rg (electron density)15.85 Å
Total Rg16.89 Å
Atom count1338
Residues175
Excluded volume23874 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3ddy__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 (3)

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id3ddyA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily20 —
Domain ID domain_id3ddyA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily20 —
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7. Citations (1)