SAXSdb — 1oro

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

OROTATE PHOSPHORIBOSYLTRANSFERASE

OrganismNot specified

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PYRE_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–213； UniProt 1–212 Author chain B； PDBConstruct 2–213； UniProt 1–212

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	1oro
Deposition date deposition_date	1995-09-11
Structure title title	A FLEXIBLE LOOP AT THE DIMER INTERFACE IS A PART OF THE ACTIVE SITE OF THE ADJACENT MONOMER OF ESCHERICHIA COLI OROTATE PHOSPHORIBOSYLTRANSFERASE
Keywords keywords	PYRIMIDINE NUCLEOTIDE BIOSYNTHESIS, INHIBITOR-ENZYME COMPLEX, PHOSPHORIBOSYLTRANSFERASE; PHOSPHORIBOSYLTRANSFERASE
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.

1oro__assembly_1__model_1

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

Download this curve (.dat)

1oro__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1oro__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.50 Å
Rg (electron density)	23.46 Å
Total Rg	24.31 Å
Atom count	3283
Residues	419
Excluded volume	58738 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1oro__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 (3)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1oroa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.61 — PRTase-like
Superfamily Superfamily superfamily	c.61.1 — PRTase-like
Family Family family	c.61.1.1 — Phosphoribosyltransferases (PRTases)

Domain ID domain_id	d1orob_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.61 — PRTase-like
Superfamily Superfamily superfamily	c.61.1 — PRTase-like
Family Family family	c.61.1.1 — Phosphoribosyltransferases (PRTases)

CATH v4.4 (2 domains)

Domain ID domain_id	1oroA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	2020 —

Domain ID domain_id	1oroB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	2020 —

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Unit-cell length a length_a	54.870 Å
Unit-cell length b length_b	71.080 Å
Unit-cell length c length_c	104.200 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	2.400 Å
Low-resolution limit resolution_low	6.000 Å
R factor r_factor	0.1830
R_work r_work	0.1830
R_free r_free	—

Description description	OROTATE PHOSPHORIBOSYLTRANSFERASE
Molecular weight formula_weight	23595.0 kDa
EC 编号 ec_number	2.4.2.10
Source method src_method	nat
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3401

A FLEXIBLE LOOP AT THE DIMER INTERFACE IS A PART OF THE ACTIVE SITE OF THE ADJACENT MONOMER OF ESCHERICHIA COLI OROTATE PHOSPHORIBOSYLTRANSFERASE

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

OROTATE PHOSPHORIBOSYLTRANSFERASE

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

1oro__assembly_1__model_1

1oro__assembly_1__model_1 | I(q)

1oro__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	118

A FLEXIBLE LOOP AT THE DIMER INTERFACE IS A PART OF THE ACTIVE SITE OF THE ADJACENT MONOMER OF ESCHERICHIA COLI OROTATE PHOSPHORIBOSYLTRANSFERASE

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

OROTATE PHOSPHORIBOSYLTRANSFERASE

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

1oro__assembly_1__model_1

1oro__assembly_1__model_1 | I(q)

1oro__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)