SAXSdb — 3rix

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

Luciferin 4-monooxygenase

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	;(5Z)-4-hydroxy-3-[(2R)-2-(2-hydroxypropan-2-yl)-2,3-dihydro-1-benzofuran-5-yl]-5-{[(2R)-2-(2-hydroxypropan-2-yl)-2,3-dihydro-1-benzofuran-5-yl]methylidene}furan-2(5H)-one ; × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	LUCI_PHOPY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–550； UniProt 1–550

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_id	3rix
Deposition date deposition_date	2011-04-14
Structure title title	1.7A resolution structure of a firefly luciferase-Aspulvinone J inhibitor complex
Keywords keywords	;oxidoreductase, monooxygenase, photoprotein, luminescence, aspulvinone, natural product extracts, OXIDOREDUCTASE-OXIDOREDUCTASE INHIBITOR complex ;; OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR
Experimental Method method	X-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.

3rix__assembly_1__model_1

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

Download this curve (.dat)

3rix__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3rix__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	22.53 Å
Rg (electron density)	21.34 Å
Total Rg	22.21 Å
Atom count	3365
Residues	428
Excluded volume	60439 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3rix__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)

Entity 1 Entity 1 polymer

Description description	Luciferin 4-monooxygenase
Molecular weight formula_weight	60819.0 kDa
EC 编号 ec_number	1.13.12.7
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3673

MEDAKNIKKGPAPFYPLEDGTAGEQLHKAMKRYALVPGTIAFTDAHIEVNITYAEYFEMSVRLAEAMKRYGLNTNHRIVVCSENSLQFFMPVLGALFIGVAVAPANDIYNERELLNSMNISQPTVVFVSKKGLQKILNVQKKLPIIQKIIIMDSKTDYQGFQSMYTFVTSHLPPGFNEYDFVPESFDRDKTIALIMNSSGSTGLPKGVALPHRTACVRFSHARDPIFGNQIIPDTAILSVVPFHHGFGMFTTLGYLICGFRVVLMYRFEEELFLRSLQDYKIQSALLVPTLFSFFAKSTLIDKYDLSNLHEIASGGAPLSKEVGEAVAKRFHLPGIRQGYGLTETTSAILITPEGDDKPGAVGKVVPFFEAKVVDLDTGKTLGVNQRGELCVRGPMIMSGYVNNPEATNALIDKDGWLHSGDIAYWDEDEHFFIVDRLKSLIKYKGYQVAPAELESILLQHPNIFDAGVAGLPDDDAGELPAAVVVLEHGKTMTEKEIVDYVASQVTTAKKLRGGVVFVDEVPKGLTGKLDARKIREILIKAKKGGKSKL

Entity 2 Entity 2 non-polymer

Description description	;(5Z)-4-hydroxy-3-[(2R)-2-(2-hydroxypropan-2-yl)-2,3-dihydro-1-benzofuran-5-yl]-5-{[(2R)-2-(2-hydroxypropan-2-yl)-2,3-dihydro-1-benzofuran-5-yl]methylidene}furan-2(5H)-one ;
Molecular weight formula_weight	464.5 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	283

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d3rixa_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.23 — Acetyl-CoA synthetase-like
Superfamily Superfamily superfamily	e.23.1 — Acetyl-CoA synthetase-like
Family Family family	e.23.1.1 — Acetyl-CoA synthetase-like

CATH v4.4 (1 domains)

Domain ID domain_id	3rixA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	12780 — ANL, N-terminal domain

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Unit-cell length a length_a	83.738 Å
Unit-cell length b length_b	83.738 Å
Unit-cell length c length_c	96.913 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 41
Space-group number int_tables_number	76
Crystal system crystal_system	—

Resolution resolution	1.700 Å
Low-resolution limit resolution_low	38.435 Å
R factor r_factor	0.1913
R_work r_work	0.1899
R_free r_free	0.2179

1.7A resolution structure of a firefly luciferase-Aspulvinone J inhibitor complex

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

Luciferin 4-monooxygenase

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

3rix__assembly_1__model_1

3rix__assembly_1__model_1 | I(q)

3rix__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

1.7A resolution structure of a firefly luciferase-Aspulvinone J inhibitor complex

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

Luciferin 4-monooxygenase

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

3rix__assembly_1__model_1

3rix__assembly_1__model_1 | I(q)

3rix__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)