SAXSdb — 2dhq

▼

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

PROTEIN (3-DEHYDROQUINATE DEHYDRATASE)

Mycobacterium tuberculosis H37Rv

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 10	water × 10	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 12	water × 12	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	AROQ_MYCTU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–146； UniProt 2–147

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	2dhq
Deposition date deposition_date	1999-01-29
Structure title title	3-DEHYDROQUINATE DEHYDRATASE FROM MYCOBACTERIUM TUBERCULOSIS
Keywords keywords	DEHYDRATASE, SHIKIMATE PATHWAY, ALPHA/BETA PROTEIN; DEHYDRATASE
Experimental Method method	X-RAY DIFFRACTION

▼

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.

2dhq__assembly_1__model_1

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

Download this curve (.dat)

2dhq__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2dhq__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	36.06 Å
Rg (electron density)	35.32 Å
Total Rg	36.02 Å
Atom count	10250
Residues	1360
Excluded volume	181860 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2dhq__assembly_1__model_1`	decameric （10）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2dhq__assembly_2__model_1`	dodecameric （12）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (2)

▼

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2dhqa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.23 — Flavodoxin-like
Superfamily Superfamily superfamily	c.23.13 — Type II 3-dehydroquinate dehydratase
Family Family family	c.23.13.1 — Type II 3-dehydroquinate dehydratase

CATH v4.4 (1 domains)

Domain ID domain_id	2dhqA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	9100 — Dehydroquinase, class II

▶

Unit-cell length a length_a	127.680 Å
Unit-cell length b length_b	127.680 Å
Unit-cell length c length_c	127.680 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	48

Space group space_group	F 2 3
Space-group number int_tables_number	196
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	—
R_work r_work	0.1471
R_free r_free	0.1960

Description description	PROTEIN (3-DEHYDROQUINATE DEHYDRATASE)
Molecular weight formula_weight	15676.7 kDa
EC 编号 ec_number	4.2.1.10
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1188

3-DEHYDROQUINATE DEHYDRATASE FROM MYCOBACTERIUM TUBERCULOSIS

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

PROTEIN (3-DEHYDROQUINATE DEHYDRATASE)

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

2dhq__assembly_1__model_1

2dhq__assembly_1__model_1 | I(q)

2dhq__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

Source organism organism	Mycobacterium tuberculosis H37Rv
NCBI taxonomy ID ncbi_taxonomy_id	83332
Host organism host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	123

3-DEHYDROQUINATE DEHYDRATASE FROM MYCOBACTERIUM TUBERCULOSIS

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

PROTEIN (3-DEHYDROQUINATE DEHYDRATASE)

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

2dhq__assembly_1__model_1

2dhq__assembly_1__model_1 | I(q)

2dhq__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)