SAXSdb — 1um0

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

Chorismate synthase

Helicobacter pylori

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	AROC_HELPY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–365； UniProt 1–365 Author chain B； PDBConstruct 1–365； UniProt 1–365 Author chain C； PDBConstruct 1–365； UniProt 1–365 Author chain D； PDBConstruct 1–365； UniProt 1–365

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	1um0
Deposition date deposition_date	2003-09-18
Structure title title	Crystal structure of chorismate synthase complexed with FMN
Keywords keywords	beta-alpha-beta sandwich fold, LYASE; LYASE
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.

1um0__assembly_1__model_1

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

Download this curve (.dat)

1um0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1um0__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	33.14 Å
Rg (electron density)	31.89 Å
Total Rg	32.52 Å
Atom count	11388
Residues	1460
Excluded volume	202610 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1um0__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 (3)

Entity 1 Entity 1 polymer

Description description	Chorismate synthase
Molecular weight formula_weight	40154.9 kDa
EC 编号 ec_number	4.2.3.5
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	11843

MNTLGRFLRLTTFGESHGDVIGGVLDGMPSGIKIDYALLENEMKRRQGGRNVFITPRKEDDKVEITSGVFEDFSTGTPIGFLIHNQRARSKDYDNIKNLFRPSHADFTYFHKYGIRDFRGGGRSSARESAIRVAAGAFAKMLLREIGIVCESGIIEIGGIKAKNYDFNHALKSEIFALDEEQEEAQKTAIQNAIKNHDSIGGVALIRARSIKTNQKLPIGLGQGLYAKLDAKIAEAMMGLNGVKAVEIGKGVESSLLKGSEYNDLMDQKGFLSNRSGGVLGGMSNGEEIIVRVHFKPTPSIFQPQRTIDINGNECECLLKGRHDPCIAIRGSVVCESLLALVLADMVLLNLTSKIEYLKTIYNEN

Source Source

Source organism organism	Helicobacter pylori
NCBI taxonomy ID ncbi_taxonomy_id	210
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	FLAVIN MONONUCLEOTIDE
Molecular weight formula_weight	456.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	455

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1um0a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.258 — Chorismate synthase, AroC
Superfamily Superfamily superfamily	d.258.1 — Chorismate synthase, AroC
Family Family family	d.258.1.1 — Chorismate synthase, AroC

Domain ID domain_id	d1um0b_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.258 — Chorismate synthase, AroC
Superfamily Superfamily superfamily	d.258.1 — Chorismate synthase, AroC
Family Family family	d.258.1.1 — Chorismate synthase, AroC

Domain ID domain_id	d1um0c_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.258 — Chorismate synthase, AroC
Superfamily Superfamily superfamily	d.258.1 — Chorismate synthase, AroC
Family Family family	d.258.1.1 — Chorismate synthase, AroC

Domain ID domain_id	d1um0d_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.258 — Chorismate synthase, AroC
Superfamily Superfamily superfamily	d.258.1 — Chorismate synthase, AroC
Family Family family	d.258.1.1 — Chorismate synthase, AroC

CATH v4.4 (4 domains)

Domain ID domain_id	1um0A00
Class class	3 — Alpha Beta
Architecture architecture	60 — 4-Layer Sandwich
Topology topology	150 — Chorismate synthase, AroC fold
Homologous superfamily homologous superfamily	10 — Chorismate synthase AroC

Domain ID domain_id	1um0B00
Class class	3 — Alpha Beta
Architecture architecture	60 — 4-Layer Sandwich
Topology topology	150 — Chorismate synthase, AroC fold
Homologous superfamily homologous superfamily	10 — Chorismate synthase AroC

Domain ID domain_id	1um0C00
Class class	3 — Alpha Beta
Architecture architecture	60 — 4-Layer Sandwich
Topology topology	150 — Chorismate synthase, AroC fold
Homologous superfamily homologous superfamily	10 — Chorismate synthase AroC

Domain ID domain_id	1um0D00
Class class	3 — Alpha Beta
Architecture architecture	60 — 4-Layer Sandwich
Topology topology	150 — Chorismate synthase, AroC fold
Homologous superfamily homologous superfamily	10 — Chorismate synthase AroC

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Unit-cell length a length_a	146.686 Å
Unit-cell length b length_b	146.686 Å
Unit-cell length c length_c	132.310 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	32

Space group space_group	I 4
Space-group number int_tables_number	79
Crystal system crystal_system	—

Resolution resolution	1.950 Å
Low-resolution limit resolution_low	29.900 Å
R factor r_factor	0.2140
R_work r_work	0.2140
R_free r_free	0.2430

Crystal structure of chorismate synthase complexed with FMN

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

Chorismate 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

1um0__assembly_1__model_1

1um0__assembly_1__model_1 | I(q)

1um0__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of chorismate synthase complexed with FMN

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

Chorismate 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

1um0__assembly_1__model_1

1um0__assembly_1__model_1 | I(q)

1um0__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)