SAXSdb — 5np7

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

DNA repair protein RAD51 homolog 1

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 7	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 7	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RAD51_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–339； UniProt 1–339 Author chain B； PDBConstruct 1–339； UniProt 1–339 Author chain C； PDBConstruct 1–339； UniProt 1–339 Author chain D； PDBConstruct 1–339； UniProt 1–339 Author chain E； PDBConstruct 1–339； UniProt 1–339 Author chain F； PDBConstruct 1–339； UniProt 1–339 Author chain G； PDBConstruct 1–339； UniProt 1–339

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	5np7
Deposition date deposition_date	2017-04-13
Structure title title	CryoEM structure of Human Rad51 on single-stranded DNA to 4.2A resolution.
Keywords keywords	recombinase, cryoEM, Human Rad51, single-stranded DNA, RECOMBINATION; RECOMBINATION
Experimental Method method	ELECTRON MICROSCOPY

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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.

5np7__assembly_1__model_1

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

Download this curve (.dat)

5np7__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5np7__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	47.95 Å
Rg (electron density)	47.80 Å
Total Rg	48.00 Å
Atom count	16457
Residues	2177
Excluded volume	290730 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5np7__assembly_1__model_1`	heptameric （7）	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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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	1

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

Resolution resolution	4.200 Å
Low-resolution limit resolution_low	180.000 Å
R factor r_factor	0.2832
R_work r_work	0.2832
R_free r_free	—

Resolution resolution	4.20 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	60000

Description description	DNA repair protein RAD51 homolog 1
Molecular weight formula_weight	37009.1 kDa
Source method src_method	man
Copy count entity_count	7

CryoEM structure of Human Rad51 on single-stranded DNA to 4.2A resolution.

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

DNA repair protein RAD51 homolog 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

5np7__assembly_1__model_1

5np7__assembly_1__model_1 | I(q)

5np7__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

7. Citations (1)

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G
Atom count atom_count	16457

Source organism organism	Homo sapiens
Common name common_name	Human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

CryoEM structure of Human Rad51 on single-stranded DNA to 4.2A resolution.

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

DNA repair protein RAD51 homolog 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

5np7__assembly_1__model_1

5np7__assembly_1__model_1 | I(q)

5np7__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

7. Citations (1)