SAXSdb — 3i07

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

Organic hydroperoxide resistance protein

Vibrio cholerae O1 biovar El Tor

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	GLYCEROL × 2 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9KKU4_VIBCH
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–148； UniProt 1–145 Author chain B； PDBConstruct 4–148； UniProt 1–145

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	3i07
Deposition date deposition_date	2009-06-24
Structure title title	Crystal structure of a putative organic hydroperoxide resistance protein from Vibrio cholerae O1 biovar eltor str. N16961
Keywords keywords	;CSGID, Organic hydroperoxide resistance, oxidoreductase, NIAID, Structural Genomics, National Institute for Allergy and Infectious Disease (NIAID), Center for Structural Genomics of Infectious Diseases ;; OXIDOREDUCTASE
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.

3i07__assembly_1__model_1

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

Download this curve (.dat)

3i07__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3i07__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.25 Å
Rg (electron density)	18.30 Å
Total Rg	19.30 Å
Atom count	2142
Residues	293
Excluded volume	37939 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3i07__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 (4)

Entity 1 Entity 1 polymer

Description description	Organic hydroperoxide resistance protein
Molecular weight formula_weight	15342.3 kDa
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	2479

SNAMRNKNMSTIYQTSATASAGRNGVVSTEDKLLELNLSYPKEMGGSGTATNPEQLFAVGYAACFSNAILHVAREAKVALKEAPVTATVGIGPNGQGGFALSVALAAHIALEDEQARQLVTVAHQVCPYSNAVRGNIDVQVSVNGLAL

Source Source

Source organism organism	Vibrio cholerae O1 biovar El Tor
NCBI taxonomy ID ncbi_taxonomy_id	243277
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	2-(N-MORPHOLINO)-ETHANESULFONIC ACID
Molecular weight formula_weight	195.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	275

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6. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d3i07a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.0 — automated matches

Domain ID domain_id	d3i07b1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.227 — OsmC-like
Superfamily Superfamily superfamily	d.227.1 — OsmC-like
Family Family family	d.227.1.0 — automated matches

Domain ID domain_id	d3i07b2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (4 domains)

Domain ID domain_id	3i07A01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	3i07A02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	3i07B01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	3i07B02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

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Unit-cell length a length_a	38.026 Å
Unit-cell length b length_b	76.154 Å
Unit-cell length c length_c	79.690 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	1.500 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.1663
R_work r_work	0.1653
R_free r_free	0.1845

Crystal structure of a putative organic hydroperoxide resistance protein from Vibrio cholerae O1 biovar eltor str. N16961

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

Organic hydroperoxide resistance 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

3i07__assembly_1__model_1

3i07__assembly_1__model_1 | I(q)

3i07__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 (4)

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 water

6. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of a putative organic hydroperoxide resistance protein from Vibrio cholerae O1 biovar eltor str. N16961

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

Organic hydroperoxide resistance 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

3i07__assembly_1__model_1

3i07__assembly_1__model_1 | I(q)

3i07__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 (4)

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 water

6. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

CATH v4.4 (4 domains)

7. Citations (1)