SAXSdb — 2bng

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

MB2760

MYCOBACTERIUM TUBERCULOSIS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	CALCIUM ION × 4 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q7TY00_MYCBO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–149； UniProt 1–149 Author chain B； PDBConstruct 1–149； UniProt 1–149 Author chain C； PDBConstruct 1–149； UniProt 1–149

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	2bng
Deposition date deposition_date	2005-03-24
Structure title title	Structure of an M.tuberculosis LEH-like epoxide hydrolase
Keywords keywords	M.TUBERCULOSIS, EPOXIDE HYDROLASE, LIMONENE, HYDROLASE, STRUCTURAL PROTEOMICS IN EUROPE, SPINE, STRUCTURAL GENOMICS; HYDROLASE
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.

2bng__assembly_1__model_1

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

Download this curve (.dat)

2bng__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2bng__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	40.53 Å
Rg (electron density)	41.28 Å
Total Rg	41.44 Å
Atom count	6390
Residues	798
Excluded volume	114080 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2bng__assembly_1__model_1`	hexameric （6）	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	MB2760
Molecular weight formula_weight	16751.6 kDa
EC 编号 ec_number	3.3.2.8
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	3284

MAELTETSPETPETTEAIRAVEAFLNALQNEDFDTVDAALGDDLVYENVGFSRIRGGRRTATLLRRMQGRVGFEVKIHRIGADGAAVLTERTDALIIGPLRVQFWVCGVFEVDDGRITLWRDYFDVYDMFKGLLRGLVALVVPSLKATL

Source Source

Source organism organism	MYCOBACTERIUM TUBERCULOSIS
NCBI taxonomy ID ncbi_taxonomy_id	83332
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	89

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d2bnga1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.8 — Limonene-1,2-epoxide hydrolase-like

Domain ID domain_id	d2bngb_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.8 — Limonene-1,2-epoxide hydrolase-like

Domain ID domain_id	d2bngc_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.8 — Limonene-1,2-epoxide hydrolase-like

CATH v4.4 (3 domains)

Domain ID domain_id	2bngA00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	2bngB00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	2bngC00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

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Unit-cell length a length_a	81.901 Å
Unit-cell length b length_b	81.901 Å
Unit-cell length c length_c	117.025 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	18

Space group space_group	P 32 2 1
Space-group number int_tables_number	154
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.2240
R_work r_work	0.2220
R_free r_free	0.2540

Structure of an M.tuberculosis LEH-like epoxide hydrolase

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

MB2760

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

2bng__assembly_1__model_1

2bng__assembly_1__model_1 | I(q)

2bng__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)

Structure of an M.tuberculosis LEH-like epoxide hydrolase

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

MB2760

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

2bng__assembly_1__model_1

2bng__assembly_1__model_1 | I(q)

2bng__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)