SAXSdb — 2y76

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

3-DEHYDROQUINATE DEHYDRATASE

MYCOBACTERIUM TUBERCULOSIS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	(1R,4S,5R)-3-(BENZO[b]THIOPHEN-5-YL)METHOXY-2-(BENZO[b]THIOPHEN-5-YL)METHYL-1,4,5-TRIHYDROXYCYCLOHEX-2-ENE-1-CARBOXYLATE × 3 SULFATE ION × 9 water × 3	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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	2y76
Deposition date deposition_date	2011-01-28
Structure title title	Structure of Mycobacterium tuberculosis type II dehydroquinase complexed with (1R,4S,5R)-3-(benzo(b)thiophen-5-ylmethoxy)-2-(benzo(b) thiophen-5-ylmethyl)-1,4,5-trihydroxycyclohex-2-enecarboxylate
Keywords keywords	LYASE, AMINO ACID BIOSYNTHESIS; LYASE
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.

2y76__assembly_1__model_1

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

Download this curve (.dat)

2y76__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2y76__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	23.17 Å
Rg (electron density)	22.47 Å
Total Rg	23.35 Å
Atom count	3229
Residues	408
Excluded volume	57073 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2y76__assembly_1__model_1`	trimeric （3）	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	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 Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1148

SELIVNVINGPNLGRLGRREPAVYGGTTHDELVALIEREAAELGLKAVVRQSDSEAQLLDWIHQAADAAEPVILNAGGLTHTSVALRDACAELSAPLIEVHISNVHAREEFRRHSYLSPIATGVIVGLGIQGYLLALRYLAEHVGT

Source Source

Source organism organism	MYCOBACTERIUM TUBERCULOSIS
NCBI taxonomy ID ncbi_taxonomy_id	1773
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	(1R,4S,5R)-3-(BENZO[b]THIOPHEN-5-YL)METHOXY-2-(BENZO[b]THIOPHEN-5-YL)METHYL-1,4,5-TRIHYDROXYCYCLOHEX-2-ENE-1-CARBOXYLATE
Molecular weight formula_weight	482.6 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	51

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2y76a_
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	2y76A00
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

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Unit-cell length a length_a	126.430 Å
Unit-cell length b length_b	126.430 Å
Unit-cell length c length_c	126.430 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	2.500 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.1617
R_work r_work	0.1570
R_free r_free	0.2113

Structure of Mycobacterium tuberculosis type II dehydroquinase complexed with (1R,4S,5R)-3-(benzo(b)thiophen-5-ylmethoxy)-2-(benzo(b) thiophen-5-ylmethyl)-1,4,5-trihydroxycyclohex-2-enecarboxylate

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

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

2y76__assembly_1__model_1

2y76__assembly_1__model_1 | I(q)

2y76__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) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

Structure of Mycobacterium tuberculosis type II dehydroquinase complexed with (1R,4S,5R)-3-(benzo(b)thiophen-5-ylmethoxy)-2-(benzo(b) thiophen-5-ylmethyl)-1,4,5-trihydroxycyclohex-2-enecarboxylate

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

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

2y76__assembly_1__model_1

2y76__assembly_1__model_1 | I(q)

2y76__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) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)