SAXSdb — 1ihv

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

HIV-1 INTEGRASE

Human immunodeficiency virus 1

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	POL_HV1Z6
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–52； UniProt 80–130 Author chain B； PDBConstruct 2–52； UniProt 80–130

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	1ihv
Deposition date deposition_date	1995-05-12
Structure title title	SOLUTION STRUCTURE OF THE DNA BINDING DOMAIN OF HIV-1 INTEGRASE, NMR, MINIMIZED AVERAGE STRUCTURE
Keywords keywords	DNA-BINDING PROTEIN, AIDS, POLYPROTEIN, DNA BINDING PROTEIN; DNA BINDING PROTEIN
Experimental Method method	SOLUTION NMR

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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.

1ihv__assembly_1__model_1

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

Download this curve (.dat)

1ihv__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ihv__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.05 Å
Rg (electron density)	15.65 Å
Total Rg	16.82 Å
Atom count	1770
Residues	104
Excluded volume	15569 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ihv__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 (1)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1ihva_
Class class	b — All beta proteins
Fold Fold fold	b.34 — SH3-like barrel
Superfamily Superfamily superfamily	b.34.7 — DNA-binding domain of retroviral integrase
Family Family family	b.34.7.1 — DNA-binding domain of retroviral integrase

Domain ID domain_id	d1ihvb_
Class class	b — All beta proteins
Fold Fold fold	b.34 — SH3-like barrel
Superfamily Superfamily superfamily	b.34.7 — DNA-binding domain of retroviral integrase
Family Family family	b.34.7.1 — DNA-binding domain of retroviral integrase

CATH v4.4 (2 domains)

Domain ID domain_id	1ihvA00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	10 — Integrase, C-terminal domain superfamily, retroviral

Domain ID domain_id	1ihvB00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	10 — Integrase, C-terminal domain superfamily, retroviral

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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	—

Description description	HIV-1 INTEGRASE
Molecular weight formula_weight	6139.2 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	1770

Source organism organism	Human immunodeficiency virus 1
NCBI taxonomy ID ncbi_taxonomy_id	11676
Host organism host_organism	Escherichia coli

SOLUTION STRUCTURE OF THE DNA BINDING DOMAIN OF HIV-1 INTEGRASE, NMR, MINIMIZED AVERAGE STRUCTURE

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

HIV-1 INTEGRASE

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

1ihv__assembly_1__model_1

1ihv__assembly_1__model_1 | I(q)

1ihv__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

SOLUTION STRUCTURE OF THE DNA BINDING DOMAIN OF HIV-1 INTEGRASE, NMR, MINIMIZED AVERAGE STRUCTURE

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

HIV-1 INTEGRASE

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

1ihv__assembly_1__model_1

1ihv__assembly_1__model_1 | I(q)

1ihv__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)