SAXSdb — 1lw1

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

ALKYLHYDROPEROXIDASE D

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	water × 3	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 6	water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	AHPD_MYCTU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–177； UniProt 1–177 Author chain B； PDBConstruct 1–177； UniProt 1–177 Author chain C； PDBConstruct 1–177； UniProt 1–177

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	1lw1
Deposition date deposition_date	2002-05-30
Structure title title	Crystal Structure Of Mycobacterium Tuberculosis Alkylperoxidase Ahpd H137F mutant
Keywords keywords	ALKYLHYDROPEROXIDASE, TUBERCULOSIS, OXIDOREDUCTASE; 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.

1lw1__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1lw1__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1lw1__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	30.11 Å
Rg (electron density)	29.40 Å
Total Rg	30.16 Å
Atom count	7774
Residues	1040
Excluded volume	138730 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1lw1__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1lw1__assembly_2__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 (2)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1lw1a_
Class class	a — All alpha proteins
Fold Fold fold	a.152 — AhpD-like
Superfamily Superfamily superfamily	a.152.1 — AhpD-like
Family Family family	a.152.1.1 — AhpD

Domain ID domain_id	d1lw1b_
Class class	a — All alpha proteins
Fold Fold fold	a.152 — AhpD-like
Superfamily Superfamily superfamily	a.152.1 — AhpD-like
Family Family family	a.152.1.1 — AhpD

Domain ID domain_id	d1lw1c_
Class class	a — All alpha proteins
Fold Fold fold	a.152 — AhpD-like
Superfamily Superfamily superfamily	a.152.1 — AhpD-like
Family Family family	a.152.1.1 — AhpD

CATH v4.4 (3 domains)

Domain ID domain_id	1lw1A00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1290 — AhpD-like
Homologous superfamily homologous superfamily	10 — AhpD-like

Domain ID domain_id	1lw1B00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1290 — AhpD-like
Homologous superfamily homologous superfamily	10 — AhpD-like

Domain ID domain_id	1lw1C00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1290 — AhpD-like
Homologous superfamily homologous superfamily	10 — AhpD-like

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Unit-cell length a length_a	96.603 Å
Unit-cell length b length_b	62.184 Å
Unit-cell length c length_c	89.481 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	121.81 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.1900
R_work r_work	0.1845
R_free r_free	0.2860

Description description	ALKYLHYDROPEROXIDASE D
Molecular weight formula_weight	18810.5 kDa
Mutation mutation	h137f
Source method src_method	man
Copy count entity_count	3

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	4251

Crystal Structure Of Mycobacterium Tuberculosis Alkylperoxidase Ahpd H137F mutant

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

ALKYLHYDROPEROXIDASE D

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

1lw1__assembly_2__model_1

1lw1__assembly_2__model_1 | I(q)

1lw1__assembly_2__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) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (2)

Source organism organism	Mycobacterium tuberculosis
NCBI taxonomy ID ncbi_taxonomy_id	83332
Host organism host_organism	Escherichia coli BL21

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	364

Crystal Structure Of Mycobacterium Tuberculosis Alkylperoxidase Ahpd H137F mutant

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

ALKYLHYDROPEROXIDASE D

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

1lw1__assembly_2__model_1

1lw1__assembly_2__model_1 | I(q)

1lw1__assembly_2__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) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (2)