SAXSdb — 1ceu

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

PROTEIN (HIV-1 REGULATORY PROTEIN N-TERMINAL DOMAIN VPR)

OrganismNot specified

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q73369_9HIV1
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–51； UniProt 1–51

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	1ceu
Deposition date deposition_date	1999-03-10
Structure title title	NMR STRUCTURE OF THE (1-51) N-TERMINAL DOMAIN OF THE HIV-1 REGULATORY PROTEIN
Keywords keywords	REGULATORY PROTEIN, HELICAL DOMAIN, AMPHIPATICITY, Viral protein; VIRAL 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.

1ceu__assembly_1__model_1

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

Download this curve (.dat)

1ceu__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ceu__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	16.24 Å
Rg (electron density)	15.72 Å
Total Rg	16.62 Å
Atom count	854
Residues	51
Excluded volume	7608 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ceu__assembly_1__model_1`	monomeric （1）	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) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1ceua_
Class class	j — Peptides
Fold Fold fold	j.11 — VPR protein fragments
Superfamily Superfamily superfamily	j.11.1 — VPR protein fragments
Family Family family	j.11.1.1 — VPR protein fragments

CATH v4.4 (1 domains)

Domain ID domain_id	1ceuA00
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	210 — Hiv-1 Regulatory Protein N-terminal Domain Vpr; Chain: A;
Homologous superfamily homologous superfamily	10 —

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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	PROTEIN (HIV-1 REGULATORY PROTEIN N-TERMINAL DOMAIN VPR)
Molecular weight formula_weight	6172.8 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	854

NMR STRUCTURE OF THE (1-51) N-TERMINAL DOMAIN OF THE HIV-1 REGULATORY PROTEIN

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

PROTEIN (HIV-1 REGULATORY PROTEIN N-TERMINAL DOMAIN VPR)

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

1ceu__assembly_1__model_1

1ceu__assembly_1__model_1 | I(q)

1ceu__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

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

NMR STRUCTURE OF THE (1-51) N-TERMINAL DOMAIN OF THE HIV-1 REGULATORY PROTEIN

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

PROTEIN (HIV-1 REGULATORY PROTEIN N-TERMINAL DOMAIN VPR)

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

1ceu__assembly_1__model_1

1ceu__assembly_1__model_1 | I(q)

1ceu__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

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)