SAXSdb — 1xm3

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

Thiazole biosynthesis protein thiG

Bacillus subtilis

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	THIG_BACSU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–255； UniProt 1–256 Author chain B； PDBConstruct 1–255； UniProt 1–256 Author chain C； PDBConstruct 1–255； UniProt 1–256 Author chain D； PDBConstruct 1–255； UniProt 1–256

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	1xm3
Deposition date deposition_date	2004-10-01
Structure title title	Crystal structure of Northeast Structural Genomics Target SR156
Keywords keywords	Structural Genomics, Protein Structure Initiative, PSI, NESG, Northeast Structural Genomics Consortium, BIOSYNTHETIC PROTEIN; BIOSYNTHETIC PROTEIN
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.

1xm3__assembly_1__model_1

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

Download this curve (.dat)

1xm3__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1xm3__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	30.82 Å
Rg (electron density)	30.03 Å
Total Rg	30.65 Å
Atom count	7355
Residues	965
Excluded volume	132960 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1xm3__assembly_1__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 (2)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1xm3a_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.31 — ThiG-like
Family Family family	c.1.31.1 — ThiG-like

Domain ID domain_id	d1xm3b_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.31 — ThiG-like
Family Family family	c.1.31.1 — ThiG-like

Domain ID domain_id	d1xm3c_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.31 — ThiG-like
Family Family family	c.1.31.1 — ThiG-like

Domain ID domain_id	d1xm3d_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.31 — ThiG-like
Family Family family	c.1.31.1 — ThiG-like

CATH v4.4 (4 domains)

Domain ID domain_id	1xm3A00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

Domain ID domain_id	1xm3B00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

Domain ID domain_id	1xm3C00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

Domain ID domain_id	1xm3D00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

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Unit-cell length a length_a	144.536 Å
Unit-cell length b length_b	120.722 Å
Unit-cell length c length_c	74.244 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	108.32 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

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

Resolution resolution	1.800 Å
Low-resolution limit resolution_low	29.820 Å
R factor r_factor	0.2120
R_work r_work	0.2120
R_free r_free	0.2370

Description description	Thiazole biosynthesis protein thiG
Molecular weight formula_weight	28445.6 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	7985

Crystal structure of Northeast Structural Genomics Target SR156

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

Thiazole biosynthesis protein thiG

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

1xm3__assembly_1__model_1

1xm3__assembly_1__model_1 | I(q)

1xm3__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Bacillus subtilis
NCBI taxonomy ID ncbi_taxonomy_id	1423
Host organism host_organism	Escherichia coli BL21(DE3)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	630

Crystal structure of Northeast Structural Genomics Target SR156

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

Thiazole biosynthesis protein thiG

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

1xm3__assembly_1__model_1

1xm3__assembly_1__model_1 | I(q)

1xm3__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)