SAXSdb — 1knb

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

ADENOVIRUS TYPE 5 FIBER PROTEIN

Human adenovirus 5

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FIBP_ADE05
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–196； UniProt 386–581

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	1knb
Deposition date deposition_date	1995-01-06
Structure title title	CRYSTAL STRUCTURE OF THE RECEPTOR-BINDING DOMAIN OF ADENOVIRUS TYPE 5 FIBER PROTEIN AT 1.7 ANGSTROMS RESOLUTION
Keywords keywords	CELL RECEPTOR RECOGNITION; CELL RECEPTOR RECOGNITION
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.

1knb__assembly_1__model_1

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

Download this curve (.dat)

1knb__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1knb__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.12 Å
Rg (electron density)	22.67 Å
Total Rg	23.60 Å
Atom count	5217
Residues	558
Excluded volume	76148 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1knb__assembly_1__model_1`	trimeric （3）	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) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1knba_
Class class	b — All beta proteins
Fold Fold fold	b.21 — Virus attachment protein globular domain
Superfamily Superfamily superfamily	b.21.1 — Virus attachment protein globular domain
Family Family family	b.21.1.1 — Adenovirus fiber protein 'knob' domain

CATH v4.4 (1 domains)

Domain ID domain_id	1knbA00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	90 — Adenovirus Type 5 Fiber Protein (Receptor Binding Domain)
Homologous superfamily homologous superfamily	10 — Adenovirus pIV-related, attachment domain

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Unit-cell length a length_a	86.400 Å
Unit-cell length b length_b	86.400 Å
Unit-cell length c length_c	86.400 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	12

Space group space_group	P 21 3
Space-group number int_tables_number	198
Crystal system crystal_system	—

Resolution resolution	1.700 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	0.1580
R_work r_work	0.1580
R_free r_free	—

Description description	ADENOVIRUS TYPE 5 FIBER PROTEIN
Molecular weight formula_weight	21256.7 kDa
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2174

CRYSTAL STRUCTURE OF THE RECEPTOR-BINDING DOMAIN OF ADENOVIRUS TYPE 5 FIBER PROTEIN AT 1.7 ANGSTROMS RESOLUTION

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

ADENOVIRUS TYPE 5 FIBER PROTEIN

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

1knb__assembly_1__model_1

1knb__assembly_1__model_1 | I(q)

1knb__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

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) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (3)

Source organism organism	Human adenovirus 5
NCBI taxonomy ID ncbi_taxonomy_id	28285
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	145

CRYSTAL STRUCTURE OF THE RECEPTOR-BINDING DOMAIN OF ADENOVIRUS TYPE 5 FIBER PROTEIN AT 1.7 ANGSTROMS RESOLUTION

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

ADENOVIRUS TYPE 5 FIBER PROTEIN

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

1knb__assembly_1__model_1

1knb__assembly_1__model_1 | I(q)

1knb__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

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) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (3)