SAXSdb — 1gqw

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

ALPHA-KETOGLUTARATE-DEPENDENT TAURINE DIOXYGENASE

ESCHERICHIA COLI

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	FE (II) ION × 4 2-AMINOETHANESULFONIC ACID × 4 2-OXOGLUTARIC ACID × 4	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 4	FE (II) ION × 4 2-AMINOETHANESULFONIC ACID × 4 2-OXOGLUTARIC ACID × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TAUD_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–283； UniProt 2–283 Author chain B； PDBConstruct 2–283； UniProt 2–283

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	1gqw
Deposition date deposition_date	2001-12-05
Structure title title	Taurine/alpha-ketoglutarate Dioxygenase from Escherichia coli
Keywords keywords	TAURINE, SULPHUR METABOLISM, OXYGENASE, ALPHA-KETOGLUTARATE, TAUD, TFDA, 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.

1gqw__assembly_1__model_1

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

Download this curve (.dat)

1gqw__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1gqw__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	33.19 Å
Rg (electron density)	32.27 Å
Total Rg	32.94 Å
Atom count	8676
Residues	1092
Excluded volume	152770 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1gqw__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1gqw__assembly_2__model_1`	tetrameric （4）	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	ALPHA-KETOGLUTARATE-DEPENDENT TAURINE DIOXYGENASE
Molecular weight formula_weight	32453.5 kDa
EC 编号 ec_number	1.14.11.17
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	4384

MSERLSITPLGPYIGAQISGADLTRPLSDNQFEQLYHAVLRHQVVFLRDQAITPQQQRALAQRFGELHIHPVYPHAEGVDEIIVLDTHNDNPPDNDNWHTDVTFIETPPAGAILAAKELPSTGGDTLWTSGIAAYEALSVPFRQLLSGLRAEHDFRKSFPEYKYRKTEEEHQRWREAVAKNPPLLHPVVRTHPVSGKQALFVNEGFTTRIVDVSEKESEALLSFLFAHITKPEFQVRWRWQPNDIAIWDNRVTQHYANADYLPQRRIMHRATILGDKPFYRAG

Source Source

Source organism organism	ESCHERICHIA COLI
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	FE (II) ION
Molecular weight formula_weight	55.8 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	2-AMINOETHANESULFONIC ACID
Molecular weight formula_weight	125.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	2-OXOGLUTARIC ACID
Molecular weight formula_weight	146.1 kDa
Source method src_method	syn
Copy count entity_count	2

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1gqwa_
Class class	b — All beta proteins
Fold Fold fold	b.82 — Double-stranded beta-helix
Superfamily Superfamily superfamily	b.82.2 — Clavaminate synthase-like
Family Family family	b.82.2.5 — TauD/TfdA-like

Domain ID domain_id	d1gqwb_
Class class	b — All beta proteins
Fold Fold fold	b.82 — Double-stranded beta-helix
Superfamily Superfamily superfamily	b.82.2 — Clavaminate synthase-like
Family Family family	b.82.2.5 — TauD/TfdA-like

CATH v4.4 (2 domains)

Domain ID domain_id	1gqwA00
Class class	3 — Alpha Beta
Architecture architecture	60 — 4-Layer Sandwich
Topology topology	130 — Double-stranded beta-helix
Homologous superfamily homologous superfamily	10 — Clavaminate synthase-like

Domain ID domain_id	1gqwB00
Class class	3 — Alpha Beta
Architecture architecture	60 — 4-Layer Sandwich
Topology topology	130 — Double-stranded beta-helix
Homologous superfamily homologous superfamily	10 — Clavaminate synthase-like

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Unit-cell length a length_a	116.850 Å
Unit-cell length b length_b	116.850 Å
Unit-cell length c length_c	201.910 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	24

Space group space_group	P 62 2 2
Space-group number int_tables_number	180
Crystal system crystal_system	—

Resolution resolution	3.000 Å
Low-resolution limit resolution_low	40.440 Å
R factor r_factor	0.2810
R_work r_work	0.2810
R_free r_free	0.3200

Taurine/alpha-ketoglutarate Dioxygenase from Escherichia coli

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

ALPHA-KETOGLUTARATE-DEPENDENT TAURINE 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

1gqw__assembly_1__model_1

1gqw__assembly_1__model_1 | I(q)

1gqw__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 non-polymer

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Taurine/alpha-ketoglutarate Dioxygenase from Escherichia coli

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

ALPHA-KETOGLUTARATE-DEPENDENT TAURINE 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

1gqw__assembly_1__model_1

1gqw__assembly_1__model_1 | I(q)

1gqw__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 non-polymer

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)