SAXSdb — 1ns1

▼

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

NONSTRUCTURAL PROTEIN 1

Influenza A virus

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	VNS1_IAUDO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–73； UniProt 1–73 Author chain B； PDBConstruct 1–73； UniProt 1–73

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	1ns1
Deposition date deposition_date	1997-10-02
Structure title title	RNA-BINDING DOMAIN OF NON-STRUCTURAL PROTEIN 1 FROM INFLUENZA VIRUS, NMR, 16 STRUCTURES
Keywords keywords	NONSTRUCTURAL PROTEIN, RNA-BINDING, SSRNA-BINDING, DSRNA-BINDING, POLYA-RNA-BINDING, DIMERIC SIX HELICAL STRUCTURE; NONSTRUCTURAL PROTEIN
Experimental Method method	SOLUTION NMR

▼

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.

1ns1__assembly_1__model_13

Assembly 1 · Model 13 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1ns1__assembly_1__model_13 | I(q)

100 plotted points; both axes use logarithmic scales.

1ns1__assembly_1__model_13 | P(r) · Pending

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

Rg（Guinier）	16.35 Å
Rg (electron density)	14.98 Å
Total Rg	16.25 Å
Atom count	2336
Residues	146
Excluded volume	20572 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ns1__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`1ns1__assembly_1__model_2`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`1ns1__assembly_1__model_3`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`1ns1__assembly_1__model_4`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`1ns1__assembly_1__model_5`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`1ns1__assembly_1__model_6`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`1ns1__assembly_1__model_7`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`1ns1__assembly_1__model_8`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`1ns1__assembly_1__model_9`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`1ns1__assembly_1__model_10`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`1ns1__assembly_1__model_11`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	12	`1ns1__assembly_1__model_12`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	13	`1ns1__assembly_1__model_13`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	14	`1ns1__assembly_1__model_14`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	15	`1ns1__assembly_1__model_15`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	16	`1ns1__assembly_1__model_16`	dimeric （2）	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) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1ns1a_
Class class	a — All alpha proteins
Fold Fold fold	a.16 — S15/NS1 RNA-binding domain
Superfamily Superfamily superfamily	a.16.1 — S15/NS1 RNA-binding domain
Family Family family	a.16.1.1 — N-terminal, RNA-binding domain of nonstructural protein NS1

Domain ID domain_id	d1ns1b_
Class class	a — All alpha proteins
Fold Fold fold	a.16 — S15/NS1 RNA-binding domain
Superfamily Superfamily superfamily	a.16.1 — S15/NS1 RNA-binding domain
Family Family family	a.16.1.1 — N-terminal, RNA-binding domain of nonstructural protein NS1

CATH v4.4 (2 domains)

Domain ID domain_id	1ns1A00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	10 — S15/NS1, RNA-binding

Domain ID domain_id	1ns1B00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	10 — S15/NS1, RNA-binding

▶

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	NONSTRUCTURAL PROTEIN 1
Molecular weight formula_weight	8310.4 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	37376

Source organism organism	Influenza A virus
NCBI taxonomy ID ncbi_taxonomy_id	11320
Host organism host_organism	Escherichia coli BL21(DE3)

RNA-BINDING DOMAIN OF NON-STRUCTURAL PROTEIN 1 FROM INFLUENZA VIRUS, NMR, 16 STRUCTURES

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

NONSTRUCTURAL PROTEIN 1

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

1ns1__assembly_1__model_13

1ns1__assembly_1__model_13 | I(q)

1ns1__assembly_1__model_13 | 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 (2)

RNA-BINDING DOMAIN OF NON-STRUCTURAL PROTEIN 1 FROM INFLUENZA VIRUS, NMR, 16 STRUCTURES

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

NONSTRUCTURAL PROTEIN 1

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

1ns1__assembly_1__model_13

1ns1__assembly_1__model_13 | I(q)

1ns1__assembly_1__model_13 | 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 (2)