SAXSdb — 3erp

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

Putative oxidoreductase

Salmonella enterica subsp. enterica serovar Typhimurium

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 8	ZINC ION × 8 SODIUM ION × 8 CHLORIDE ION × 20 CACODYLATE ION × 8 1,2-ETHANEDIOL × 52 water × 8	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 4	ZINC ION × 4 SODIUM ION × 4 CHLORIDE ION × 8 CACODYLATE ION × 4 1,2-ETHANEDIOL × 36 water × 4	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 4	ZINC ION × 4 SODIUM ION × 4 CHLORIDE ION × 12 CACODYLATE ION × 4 1,2-ETHANEDIOL × 16 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8ZNA1_SALTY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 22–353； UniProt 1–332 Author chain B； PDBConstruct 22–353； UniProt 1–332

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	3erp
Deposition date deposition_date	2008-10-02
Structure title title	Structure of IDP01002, a putative oxidoreductase from and essential gene of Salmonella typhimurium
Keywords keywords	;FUNDED BY THE NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES OF NIH CONTRACT NUMBER HHSN272200700058C, predicted oxidoreductase, essential gene, Salmonella, molecular replacement, Structural Genomics, Center for Structural Genomics of Infectious Diseases, CSGID, OXIDOREDUCTASE ;; 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.

3erp__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3erp__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3erp__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	36.95 Å
Rg (electron density)	36.29 Å
Total Rg	36.70 Å
Atom count	10116
Residues	1248
Excluded volume	180040 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3erp__assembly_1__model_1`	octameric （8）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3erp__assembly_2__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`3erp__assembly_3__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 (7)

Entity 1 Entity 1 polymer

Description description	Putative oxidoreductase
Molecular weight formula_weight	39862.1 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	6536

MGSSHHHHHHSSGRENLYFQGMIYQPDENRYHTMEYRRCGRSGVKLPAISLGLWHNFGDTTRVENSRALLQRAFDLGITHFDLANNYGPPPGSAECNFGRILQEDFLPWRDELIISTKAGYTMWDGPYGDWGSRKYLIASLDQSLKRMGLEYVDIFYHHRPDPETPLKETMKALDHLVRHGKALYVGISNYPADLARQAIDILEDLGTPCLIHQPKYSLFERWVEDGLLALLQEKGVGSIAFSPLAGGQLTDRYLNGIPEDSRAASGSRFLKPEQITADKLEKVRRLNELAARRGQKLSQMALAWVLRNDNVTSVLIGASKPSQIEDAVGMLANRRFSAAECAEIDAILEGRF

Source Source

Source organism organism	Salmonella enterica subsp. enterica serovar Typhimurium
NCBI taxonomy ID ncbi_taxonomy_id	99287
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	5

Entity 5 Entity 5 non-polymer

Description description	CACODYLATE ION
Molecular weight formula_weight	137.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 6 Entity 6 non-polymer

Description description	1,2-ETHANEDIOL
Molecular weight formula_weight	62.1 kDa
Source method src_method	syn
Copy count entity_count	13

Entity 7 Entity 7 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	844

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d3erpa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.7 — NAD(P)-linked oxidoreductase
Family Family family	c.1.7.0 — automated matches

Domain ID domain_id	d3erpb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.7 — NAD(P)-linked oxidoreductase
Family Family family	c.1.7.0 — automated matches

CATH v4.4 (2 domains)

Domain ID domain_id	3erpA01
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	100 — NADP-dependent oxidoreductase domain

Domain ID domain_id	3erpB01
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	100 — NADP-dependent oxidoreductase domain

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Unit-cell length a length_a	127.096 Å
Unit-cell length b length_b	127.096 Å
Unit-cell length c length_c	120.492 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	I 4
Space-group number int_tables_number	79
Crystal system crystal_system	—

Resolution resolution	1.550 Å
Low-resolution limit resolution_low	29.960 Å
R factor r_factor	0.1547
R_work r_work	0.1534
R_free r_free	0.1777

Structure of IDP01002, a putative oxidoreductase from and essential gene of Salmonella typhimurium

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

Putative oxidoreductase

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

3erp__assembly_2__model_1

3erp__assembly_2__model_1 | I(q)

3erp__assembly_2__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 (7)

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 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Structure of IDP01002, a putative oxidoreductase from and essential gene of Salmonella typhimurium

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

Putative oxidoreductase

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

3erp__assembly_2__model_1

3erp__assembly_2__model_1 | I(q)

3erp__assembly_2__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 (7)

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 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)