SAXSdb — 1v5x

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

Phosphoribosylanthranilate isomerase

Thermus thermophilus

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	P83825_THETH
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–203； UniProt 1–203 Author chain B； PDBConstruct 1–203； UniProt 1–203

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	1v5x
Deposition date deposition_date	2003-11-26
Structure title title	Crystal structure of Phosphoribosyl anthranilate isomerase from Thermus Thermophilus
Keywords keywords	;isomerase, alpha-beta barrel, TrpF, phosphoribosyl anthranilate isomerase, RIKEN Structural Genomics/Proteomics Initiative, RSGI, Structural Genomics ;; ISOMERASE
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.

1v5x__assembly_1__model_1

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

Download this curve (.dat)

1v5x__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1v5x__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.86 Å
Rg (electron density)	20.66 Å
Total Rg	21.49 Å
Atom count	3056
Residues	400
Excluded volume	54862 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1v5x__assembly_1__model_1`	dimeric （2）	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) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1v5xa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.2 — Ribulose-phoshate binding barrel
Family Family family	c.1.2.4 — Tryptophan biosynthesis enzymes

Domain ID domain_id	d1v5xb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.2 — Ribulose-phoshate binding barrel
Family Family family	c.1.2.4 — Tryptophan biosynthesis enzymes

CATH v4.4 (2 domains)

Domain ID domain_id	1v5xA00
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	1v5xB00
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	144.205 Å
Unit-cell length b length_b	144.205 Å
Unit-cell length c length_c	144.205 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	P 41 3 2
Space-group number int_tables_number	213
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	35.000 Å
R factor r_factor	0.2640
R_work r_work	0.2620
R_free r_free	0.2960

Description description	Phosphoribosylanthranilate isomerase
Molecular weight formula_weight	21977.5 kDa
EC 编号 ec_number	5.3.1.24
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3357

Crystal structure of Phosphoribosyl anthranilate isomerase from Thermus Thermophilus

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

Phosphoribosylanthranilate isomerase

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

1v5x__assembly_1__model_1

1v5x__assembly_1__model_1 | I(q)

1v5x__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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	Thermus thermophilus
NCBI taxonomy ID ncbi_taxonomy_id	274
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	301

Crystal structure of Phosphoribosyl anthranilate isomerase from Thermus Thermophilus

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

Phosphoribosylanthranilate isomerase

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

1v5x__assembly_1__model_1

1v5x__assembly_1__model_1 | I(q)

1v5x__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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)