SAXSdb — 1qr4

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

PROTEIN (TENASCIN)

Gallus gallus

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TENA_CHICK
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–93； UniProt 950–1042 Author chain A； PDBConstruct 94–186； UniProt 1316–1408 Author chain B； PDBConstruct 1–93； UniProt 950–1042 Author chain B； PDBConstruct 94–186； UniProt 1316–1408

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	1qr4
Deposition date deposition_date	1999-06-17
Structure title title	TWO FIBRONECTIN TYPE-III DOMAIN SEGMENT FROM CHICKEN TENASCIN
Keywords keywords	TENASCIN, FIBRONECTIN TYPE-III, HEPARIN, EXTRACELLULAR MATRIX, ADHESION, FUSION PROTEIN, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
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.

1qr4__assembly_1__model_1

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

Download this curve (.dat)

1qr4__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1qr4__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	22.72 Å
Rg (electron density)	22.55 Å
Total Rg	23.21 Å
Atom count	1350
Residues	175
Excluded volume	24117 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1qr4__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1qr4__assembly_2__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 (2)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1qr4a1
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.2 — Fibronectin type III
Family Family family	b.1.2.1 — Fibronectin type III

Domain ID domain_id	d1qr4a2
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.2 — Fibronectin type III
Family Family family	b.1.2.1 — Fibronectin type III

Domain ID domain_id	d1qr4b1
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.2 — Fibronectin type III
Family Family family	b.1.2.1 — Fibronectin type III

Domain ID domain_id	d1qr4b2
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.2 — Fibronectin type III
Family Family family	b.1.2.1 — Fibronectin type III

CATH v4.4 (4 domains)

Domain ID domain_id	1qr4A01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	1qr4A02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	1qr4B01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	1qr4B02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

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Unit-cell length a length_a	45.240 Å
Unit-cell length b length_b	57.940 Å
Unit-cell length c length_c	72.240 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	91.40 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.550 Å
Low-resolution limit resolution_low	17.800 Å
R factor r_factor	0.2090
R_work r_work	0.2090
R_free r_free	0.2920

Description description	PROTEIN (TENASCIN)
Molecular weight formula_weight	20260.8 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	2787

TWO FIBRONECTIN TYPE-III DOMAIN SEGMENT FROM CHICKEN TENASCIN

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

PROTEIN (TENASCIN)

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

1qr4__assembly_1__model_1

1qr4__assembly_1__model_1 | I(q)

1qr4__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

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Gallus gallus
Common name common_name	chicken
NCBI taxonomy ID ncbi_taxonomy_id	9031
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	87

TWO FIBRONECTIN TYPE-III DOMAIN SEGMENT FROM CHICKEN TENASCIN

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

PROTEIN (TENASCIN)

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

1qr4__assembly_1__model_1

1qr4__assembly_1__model_1 | I(q)

1qr4__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

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)