SAXSdb — 3bw4

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

2-nitropropane dioxygenase

Streptomyces ansochromogenes

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	FLAVIN MONONUCLEOTIDE × 2 (4S)-2-METHYL-2,4-PENTANEDIOL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9FDD4_9ACTO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–363； UniProt 1–363

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	3bw4
Deposition date deposition_date	2008-01-08
Structure title title	Crystal structures and site-directed mutagenesis study of nitroalkane oxidase from Streptomyces ansochromogenes
Keywords keywords	TIM barrel, OXIDOREDUCTASE, Dioxygenase; OXIDOREDUCTASE
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.

3bw4__assembly_1__model_1

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

Download this curve (.dat)

3bw4__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3bw4__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.56 Å
Rg (electron density)	25.65 Å
Total Rg	26.42 Å
Atom count	5138
Residues	694
Excluded volume	90766 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3bw4__assembly_1__model_1`	dimeric （2）	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 (4)

Entity 1 Entity 1 polymer

Description description	2-nitropropane dioxygenase
Molecular weight formula_weight	38521.3 kDa
EC 编号 ec_number	1.7.3.1
Mutation mutation	W320Y
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2705

MSSALTDLFPLPIVQAPMAGGVSVPQLAAAVCEAGGLGFLAAGYKTADGMYQEIKRLRGLTGRPFGVNVFMPQPELAESGAVEVYAHQLAGEAAWYETELGDPDGGRDDGYDAKLAVLLDDPVPVVSFHFGVPDREVIARLRRAGTLTLVTATTPEEARAVEAAGADAVIAQGVEAGGHQGTHRDSSEDDGAGIGLLSLLAQVREAVDIPVVAAGGIMRGGQIAAVLAAGADAAQLGTAFLATDESGAPGPHKRALTDPLFARTRLTRAFTGRPARSLVNRFLREHGPYAPAAYPDVHHLTSPLRKAAAKAGDAQGMALYAGQGHRMARELPAGRLVEVLAAELAEARTALSDASRENESRKGHHHHHH

Source Source

Source organism organism	Streptomyces ansochromogenes
NCBI taxonomy ID ncbi_taxonomy_id	115647
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	FLAVIN MONONUCLEOTIDE
Molecular weight formula_weight	456.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	(4S)-2-METHYL-2,4-PENTANEDIOL
Molecular weight formula_weight	118.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	136

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id	3bw4A00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

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Unit-cell length a length_a	113.319 Å
Unit-cell length b length_b	113.319 Å
Unit-cell length c length_c	115.334 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	16

Space group space_group	I 41 2 2
Space-group number int_tables_number	98
Crystal system crystal_system	—

Resolution resolution	2.200 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.1850
R_work r_work	0.1850
R_free r_free	0.2160

Crystal structures and site-directed mutagenesis study of nitroalkane oxidase from Streptomyces ansochromogenes

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

2-nitropropane dioxygenase

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

3bw4__assembly_1__model_1

3bw4__assembly_1__model_1 | I(q)

3bw4__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)

Crystal structures and site-directed mutagenesis study of nitroalkane oxidase from Streptomyces ansochromogenes

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

2-nitropropane dioxygenase

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

3bw4__assembly_1__model_1

3bw4__assembly_1__model_1 | I(q)

3bw4__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)