SAXSdb — 1lh0

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

OMP synthase

Salmonella typhimurium

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	OROTIC ACID × 2 MAGNESIUM ION × 1 1-O-pyrophosphono-5-O-phosphono-alpha-D-ribofuranose × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PYRE_SALTY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–213； UniProt 0–212 Author chain B； PDBConstruct 1–213； UniProt 0–212

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	1lh0
Deposition date deposition_date	2002-04-16
Structure title title	Crystal Structure of Salmonella typhimurium OMP Synthase in Complex with MGPRPP and Orotate
Keywords keywords	loop closure, monomer closure, orotate phosphoribosyltransferase, TRANSFERASE; TRANSFERASE
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.

1lh0__assembly_1__model_1

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

Download this curve (.dat)

1lh0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1lh0__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.12 Å
Rg (electron density)	23.02 Å
Total Rg	23.87 Å
Atom count	3318
Residues	419
Excluded volume	59153 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1lh0__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 (5)

Entity 1 Entity 1 polymer

Description description	OMP synthase
Molecular weight formula_weight	23592.0 kDa
EC 编号 ec_number	2.4.2.10
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3596

MKPYQRQFIEFALNKQVLKFGEFTLKSGRKSPYFFNAGLFNTGRDLALLGRFYAEALVDSGIEFDLLFGPAYKGIPIATTTAVALAEHHDKDLPYCFNRKEAKDHGEGGSLVGSALQGRVMLVDDVITAGTAIRESMEIIQAHGATLAGVLISLDRQERGRGEISAIQEVERDYGCKVISIITLKDLIAYLEEKPDMAEHLAAVRAYREEFGV

Source Source

Source organism organism	Salmonella typhimurium
NCBI taxonomy ID ncbi_taxonomy_id	602
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	OROTIC ACID
Molecular weight formula_weight	156.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	1-O-pyrophosphono-5-O-phosphono-alpha-D-ribofuranose
Molecular weight formula_weight	390.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	278

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1lh0a_
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	d1lh0b_
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	1lh0A00
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	1lh0B00
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	105.570 Å
Unit-cell length b length_b	154.230 Å
Unit-cell length c length_c	52.600 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	16

Space group space_group	C 2 2 2
Space-group number int_tables_number	21
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2100
R_work r_work	0.2050
R_free r_free	0.2420

Crystal Structure of Salmonella typhimurium OMP Synthase in Complex with MGPRPP and Orotate

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

OMP synthase

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

1lh0__assembly_1__model_1

1lh0__assembly_1__model_1 | I(q)

1lh0__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)

Crystal Structure of Salmonella typhimurium OMP Synthase in Complex with MGPRPP and Orotate

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

OMP synthase

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

1lh0__assembly_1__model_1

1lh0__assembly_1__model_1 | I(q)

1lh0__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)