SAXSdb — 6ap0

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

CASP8-associated protein 2

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C8AP2_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–88； UniProt 51–137 Author chain B； PDBConstruct 2–88； UniProt 51–137

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	6ap0
Deposition date deposition_date	2017-08-16
Structure title title	Crystal structure of human FLASH N-terminal domain C54S/C83A (Crystal form 2)
Keywords keywords	coiled-coil, GENE REGULATION; GENE REGULATION
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.

6ap0__assembly_1__model_1

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

Download this curve (.dat)

6ap0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6ap0__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	35.42 Å
Rg (electron density)	36.74 Å
Total Rg	35.63 Å
Atom count	1389
Residues	170
Excluded volume	24796 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6ap0__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 (2)

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Unit-cell length a length_a	63.478 Å
Unit-cell length b length_b	44.346 Å
Unit-cell length c length_c	68.433 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	98.65 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.581 Å
Low-resolution limit resolution_low	36.216 Å
R factor r_factor	0.2156
R_work r_work	0.2138
R_free r_free	0.2487

Description description	CASP8-associated protein 2
Molecular weight formula_weight	11333.8 kDa
Mutation mutation	C54S, C83A
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,A
Atom count atom_count	1410

Crystal structure of human FLASH N-terminal domain C54S/C83A (Crystal form 2)

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

CASP8-associated protein 2

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

6ap0__assembly_1__model_1

6ap0__assembly_1__model_1 | I(q)

6ap0__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

7. Citations (1)

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

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	10

Crystal structure of human FLASH N-terminal domain C54S/C83A (Crystal form 2)

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

CASP8-associated protein 2

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

6ap0__assembly_1__model_1

6ap0__assembly_1__model_1 | I(q)

6ap0__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

7. Citations (1)