SAXSdb — 8uk5

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

ATPase family AAA domain-containing protein 2B

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Histone H4S1(ph)K5ac × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ATD2B_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–136； UniProt 953–1085

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	8uk5
Deposition date deposition_date	2023-10-12
Structure title title	Crystal structure of the bromodomain of human ATAD2B in complex with histone H4S1(ph)K5ac
Keywords keywords	bromodomain, epigenetics, chromatin reader domain, PROTEIN BINDING, histone acetylation, PEPTIDE BINDING PROTEIN; PEPTIDE BINDING PROTEIN
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.

8uk5__assembly_1__model_1

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

Download this curve (.dat)

8uk5__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8uk5__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.77 Å
Rg (electron density)	16.78 Å
Total Rg	17.71 Å
Atom count	1102
Residues	136
Excluded volume	19631 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8uk5__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 (3)

Entity 1 Entity 1 polymer

Description description	ATPase family AAA domain-containing protein 2B
Molecular weight formula_weight	15826.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1399

GPLEDQEENTLRELRLFLRDVTKRLATDKRFNIFSKPVDIEEVSDYLEVIKEPMDLSTVITKIDKHNYLTAKDFLKDIDLICSNALEYNPDKDPGDKIIRHRACTLKDTAHAIIAAELDPEFNKLCEEIKEARIKR

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	;Escherichia coli 'BL21-Gold(DE3)pLysS AG' ;

Entity 2 Entity 2 polymer

Description description	Histone H4S1(ph)K5ac
Molecular weight formula_weight	1340.4 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

SGRGKGGKGLGKGG

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	268

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Unit-cell length a length_a	41.080 Å
Unit-cell length b length_b	48.580 Å
Unit-cell length c length_c	83.320 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	4

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	orthorhombic

Resolution resolution	1.400 Å
Low-resolution limit resolution_low	31.370 Å
R factor r_factor	—
R_work r_work	0.1784
R_free r_free	0.2023

Crystal structure of the bromodomain of human ATAD2B in complex with histone H4S1(ph)K5ac

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

ATPase family AAA domain-containing protein 2B

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

8uk5__assembly_1__model_1

8uk5__assembly_1__model_1 | I(q)

8uk5__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 polymer

Polymer Polymer

Entity 3 Entity 3 water

7. Citations (1)

Crystal structure of the bromodomain of human ATAD2B in complex with histone H4S1(ph)K5ac

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

ATPase family AAA domain-containing protein 2B

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

8uk5__assembly_1__model_1

8uk5__assembly_1__model_1 | I(q)

8uk5__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 polymer

Polymer Polymer

Entity 3 Entity 3 water

7. Citations (1)