SAXSdb — 2iiu

▼

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

Hypothetical protein

Shewanella oneidensis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	1,2-ETHANEDIOL × 18 water × 6	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 6	1,2-ETHANEDIOL × 3 water × 6	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 18	1,2-ETHANEDIOL × 24 water × 18	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8EAX1_SHEON
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–227； UniProt 1–226 Author chain B； PDBConstruct 2–227； UniProt 1–226 Author chain C； PDBConstruct 2–227； UniProt 1–226

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	2iiu
Deposition date deposition_date	2006-09-28
Structure title title	Crystal structure of a putative PhoU-like phosphate regulatory protein (NP_719307.1) from Shewanella oneidensis MR-1 at 2.28 A resolution.
Keywords keywords	;NP_719307.1, conserved hypothetical protein, Structural Genomics, PSI-2, Protein Structure Initiative, Joint Center for Structural Genomics, JCSG, Structural Genomics-Unknown function COMPLEX ;; Structural Genomics/Unknown function
Experimental Method method	X-RAY DIFFRACTION

▼

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.

2iiu__assembly_1__model_1

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

Download this curve (.dat)

2iiu__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2iiu__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	37.81 Å
Rg (electron density)	38.21 Å
Total Rg	38.03 Å
Atom count	9618
Residues	1218
Excluded volume	173950 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2iiu__assembly_1__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2iiu__assembly_2__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`2iiu__assembly_3__model_1`	octadecameric （18）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Description description	Hypothetical protein
Molecular weight formula_weight	25884.0 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	5045

GMPVNSILGVFAKSPIKPLQEHMDKVYDCASLLVPFFEATITGNWDDAVQIRKQISLAEKQGDSLKREIRLTLPSGLFMPVERTDLLELLTQQDKIANKAKDISGRVIGRQLLIPQALQVPFIAYLQRCIDAVGLAQQVINELDDLLEAGFRGREVDFVAKMINELDIIEEDTDDLQIQLRRQLFALESELNPVDVMFLYKTIEWVGGLADLAERVGSRLELMLARV

Source Source

Source organism organism	Shewanella oneidensis
NCBI taxonomy ID ncbi_taxonomy_id	70863
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	1,2-ETHANEDIOL
Molecular weight formula_weight	62.1 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	203

▼

6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id	2iiuA00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	220 — Phosphate transport system protein phou homolog 2; domain 2

Domain ID domain_id	2iiuB00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	220 — Phosphate transport system protein phou homolog 2; domain 2

Domain ID domain_id	2iiuC00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	220 — Phosphate transport system protein phou homolog 2; domain 2

▶

Unit-cell length a length_a	99.880 Å
Unit-cell length b length_b	99.880 Å
Unit-cell length c length_c	397.270 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	54

Space group space_group	H 3 2
Space-group number int_tables_number	155
Crystal system crystal_system	—

Resolution resolution	2.280 Å
Low-resolution limit resolution_low	47.458 Å
R factor r_factor	0.2020
R_work r_work	0.2000
R_free r_free	0.2470

Crystal structure of a putative PhoU-like phosphate regulatory protein (NP_719307.1) from Shewanella oneidensis MR-1 at 2.28 A resolution.

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

Hypothetical 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

2iiu__assembly_1__model_1

2iiu__assembly_1__model_1 | I(q)

2iiu__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) 3 domains

CATH v4.4 (3 domains)

7. Citations (1)

Crystal structure of a putative PhoU-like phosphate regulatory protein (NP_719307.1) from Shewanella oneidensis MR-1 at 2.28 A resolution.

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

Hypothetical 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

2iiu__assembly_1__model_1

2iiu__assembly_1__model_1 | I(q)

2iiu__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) 3 domains

CATH v4.4 (3 domains)

7. Citations (1)