SAXSdb — 8a50

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

Heat shock factor 2-binding protein

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	PHOSPHATE ION × 4 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	HSF2B_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–32； UniProt 19–50 Author chain B； PDBConstruct 1–32； UniProt 19–50

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	8a50
Deposition date deposition_date	2022-06-13
Structure title title	Crystal structure of HSF2BP-ALPHA1 tetramer
Keywords keywords	Complex, RECOMBINATION; RECOMBINATION
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.

8a50__assembly_1__model_1

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

Download this curve (.dat)

8a50__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8a50__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	16.10 Å
Rg (electron density)	15.38 Å
Total Rg	16.37 Å
Atom count	2130
Residues	118
Excluded volume	18616 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8a50__assembly_1__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 (3)

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Unit-cell length a length_a	79.810 Å
Unit-cell length b length_b	79.810 Å
Unit-cell length c length_c	79.810 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	48

Space group space_group	P 41 3 2
Space-group number int_tables_number	213
Crystal system crystal_system	—

Resolution resolution	1.484 Å
Low-resolution limit resolution_low	56.430 Å
R factor r_factor	0.2129
R_work r_work	0.2127
R_free r_free	0.2166

Description description	Heat shock factor 2-binding protein
Molecular weight formula_weight	3880.6 kDa
Source method src_method	syn
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	1317

Crystal structure of HSF2BP-ALPHA1 tetramer

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

Heat shock factor 2-binding 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

8a50__assembly_1__model_1

8a50__assembly_1__model_1 | I(q)

8a50__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

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)

Description description	PHOSPHATE ION
Molecular weight formula_weight	95.0 kDa
Source method src_method	syn
Copy count entity_count	2

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	56

Crystal structure of HSF2BP-ALPHA1 tetramer

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

Heat shock factor 2-binding 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

8a50__assembly_1__model_1

8a50__assembly_1__model_1 | I(q)

8a50__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

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)