SAXSdb — 4ou7

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

Primosomal protein 1

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Homooligomer	Protein 5 DNA 1	;DNA (5'-D(PTPTPTPTPTPTPTPTPTPT)-3') ; × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	DNAT_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–71； UniProt 84–154 Author chain B； PDBConstruct 1–71； UniProt 84–154 Author chain C； PDBConstruct 1–71； UniProt 84–154 Author chain D； PDBConstruct 1–71； UniProt 84–154 Author chain E； PDBConstruct 1–71； UniProt 84–154

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	4ou7
Deposition date deposition_date	2014-02-15
Structure title title	Crystal structure of DnaT84-153-dT10 ssDNA complex reveals a novel single-stranded DNA binding mode
Keywords keywords	DNA binding, REPLICATION-DNA complex; REPLICATION/DNA
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.

4ou7__assembly_1__model_1

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

Download this curve (.dat)

4ou7__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4ou7__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	25.80 Å
Rg (electron density)	25.25 Å
Total Rg	26.09 Å
Atom count	3084
Residues	364
Excluded volume	54609 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4ou7__assembly_1__model_1`	hexameric （6）	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 (2)

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6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

Domain ID domain_id	4ou7A00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	1180 —

Domain ID domain_id	4ou7B00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	1180 —

Domain ID domain_id	4ou7C00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	1180 —

Domain ID domain_id	4ou7D00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	1180 —

Domain ID domain_id	4ou7E00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	1180 —

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Unit-cell length a length_a	46.408 Å
Unit-cell length b length_b	46.689 Å
Unit-cell length c length_c	54.392 Å
Unit-cell angle α angle_alpha	87.33 °
Unit-cell angle β angle_beta	86.01 °
Unit-cell angle γ angle_gamma	70.20 °
Molecules per unit cell Z z_pdb	5

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	2.830 Å
Low-resolution limit resolution_low	38.020 Å
R factor r_factor	0.1861
R_work r_work	0.1835
R_free r_free	0.2383

Description description	Primosomal protein 1
Molecular weight formula_weight	8168.3 kDa
Source method src_method	man
Copy count entity_count	5

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E
Atom count atom_count	3084

Crystal structure of DnaT84-153-dT10 ssDNA complex reveals a novel single-stranded DNA binding mode

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

Primosomal protein 1

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

4ou7__assembly_1__model_1

4ou7__assembly_1__model_1 | I(q)

4ou7__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

7. Citations (1)

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	83333
Host organism host_organism	Escherichia coli

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	S

Crystal structure of DnaT84-153-dT10 ssDNA complex reveals a novel single-stranded DNA binding mode

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

Primosomal protein 1

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

4ou7__assembly_1__model_1

4ou7__assembly_1__model_1 | I(q)

4ou7__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

7. Citations (1)