SAXSdb — 1hqo

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

URE2 PROTEIN

Saccharomyces cerevisiae

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	URE2_YEAST
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–258； UniProt 97–354 Author chain B； PDBConstruct 1–258； UniProt 97–354

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	1hqo
Deposition date deposition_date	2000-12-18
Structure title title	CRYSTAL STRUCTURE OF THE NITROGEN REGULATION FRAGMENT OF THE YEAST PRION PROTEIN URE2P
Keywords keywords	glutathione S-transferase superfamily fold, SIGNALING PROTEIN; SIGNALING 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.

1hqo__assembly_1__model_1

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

Download this curve (.dat)

1hqo__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1hqo__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	22.63 Å
Rg (electron density)	21.40 Å
Total Rg	22.42 Å
Atom count	3664
Residues	438
Excluded volume	65564 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1hqo__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) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1hqoa1
Class class	a — All alpha proteins
Fold Fold fold	a.45 — GST C-terminal domain-like
Superfamily Superfamily superfamily	a.45.1 — GST C-terminal domain-like
Family Family family	a.45.1.1 — Glutathione S-transferase (GST), C-terminal domain

Domain ID domain_id	d1hqoa2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.5 — Glutathione S-transferase (GST), N-terminal domain

Domain ID domain_id	d1hqob1
Class class	a — All alpha proteins
Fold Fold fold	a.45 — GST C-terminal domain-like
Superfamily Superfamily superfamily	a.45.1 — GST C-terminal domain-like
Family Family family	a.45.1.1 — Glutathione S-transferase (GST), C-terminal domain

Domain ID domain_id	d1hqob2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.5 — Glutathione S-transferase (GST), N-terminal domain

CATH v4.4 (4 domains)

Domain ID domain_id	1hqoA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	30 — Glutaredoxin
Homologous superfamily homologous superfamily	10 — Glutaredoxin

Domain ID domain_id	1hqoA02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1050 — Glutathione S-transferase Yfyf (Class Pi); Chain A, domain 2
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1hqoB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	30 — Glutaredoxin
Homologous superfamily homologous superfamily	10 — Glutaredoxin

Domain ID domain_id	1hqoB02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1050 — Glutathione S-transferase Yfyf (Class Pi); Chain A, domain 2
Homologous superfamily homologous superfamily	10 —

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Unit-cell length a length_a	64.310 Å
Unit-cell length b length_b	69.190 Å
Unit-cell length c length_c	149.990 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	8

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	—
R_work r_work	0.2210
R_free r_free	0.2750

Description description	URE2 PROTEIN
Molecular weight formula_weight	29937.9 kDa
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	3868

CRYSTAL STRUCTURE OF THE NITROGEN REGULATION FRAGMENT OF THE YEAST PRION PROTEIN URE2P

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

URE2 PROTEIN

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

1hqo__assembly_1__model_1

1hqo__assembly_1__model_1 | I(q)

1hqo__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	Saccharomyces cerevisiae
Common name common_name	;baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
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	204

CRYSTAL STRUCTURE OF THE NITROGEN REGULATION FRAGMENT OF THE YEAST PRION PROTEIN URE2P

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

URE2 PROTEIN

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

1hqo__assembly_1__model_1

1hqo__assembly_1__model_1 | I(q)

1hqo__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)