SAXSdb — 1hek

▼

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

GAG POLYPROTEIN, CORE PROTEIN P15

EQUINE INFECTIOUS ANEMIA VIRUS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GAG_EIAVY
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 8–131； UniProt 1–124 Author chain B； PDBConstruct 8–131； UniProt 1–124

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	1hek
Deposition date deposition_date	2000-11-24
Structure title title	Crystal structure of equine infectious anaemia virus matrix antigen (EIAV MA)
Keywords keywords	VIRAL PROTEIN, MEMBRANE-BINDING SWITCHING; VIRAL PROTEIN
Experimental Method method	X-RAY DIFFRACTION

▼

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.

1hek__assembly_1__model_1

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

Download this curve (.dat)

1hek__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1hek__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	15.03 Å
Rg (electron density)	13.54 Å
Total Rg	15.15 Å
Atom count	922
Residues	113
Excluded volume	16539 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1hek__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1hek__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (1)

▼

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1heka1
Class class	a — All alpha proteins
Fold Fold fold	a.61 — Retroviral matrix proteins
Superfamily Superfamily superfamily	a.61.1 — Retroviral matrix proteins
Family Family family	a.61.1.5 — EIAV matrix antigen

Domain ID domain_id	d1heka2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1hekb1
Class class	a — All alpha proteins
Fold Fold fold	a.61 — Retroviral matrix proteins
Superfamily Superfamily superfamily	a.61.1 — Retroviral matrix proteins
Family Family family	a.61.1.5 — EIAV matrix antigen

Domain ID domain_id	d1hekb2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id	1hekA00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily	90 — Immunodeficiency lentiviruses, gag gene matrix protein p17

Domain ID domain_id	1hekB00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily	90 — Immunodeficiency lentiviruses, gag gene matrix protein p17

▶

Unit-cell length a length_a	47.150 Å
Unit-cell length b length_b	47.150 Å
Unit-cell length c length_c	204.770 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	P 65
Space-group number int_tables_number	170
Crystal system crystal_system	—

Resolution resolution	2.800 Å
Low-resolution limit resolution_low	23.780 Å
R factor r_factor	0.2790
R_work r_work	0.2790
R_free r_free	0.3730

Description description	GAG POLYPROTEIN, CORE PROTEIN P15
Molecular weight formula_weight	15022.6 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	1844

Crystal structure of equine infectious anaemia virus matrix antigen (EIAV MA)

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

GAG POLYPROTEIN, CORE PROTEIN P15

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

1hek__assembly_1__model_1

1hek__assembly_1__model_1 | I(q)

1hek__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	EQUINE INFECTIOUS ANEMIA VIRUS
Common name common_name	EIAV
NCBI taxonomy ID ncbi_taxonomy_id	11665
Host organism host_organism	ESCHERICHIA COLI

Crystal structure of equine infectious anaemia virus matrix antigen (EIAV MA)

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

GAG POLYPROTEIN, CORE PROTEIN P15

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

1hek__assembly_1__model_1

1hek__assembly_1__model_1 | I(q)

1hek__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (1)