SAXSdb — 4xqa

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

Fiber

Human adenovirus 37

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	ACETATE ION × 4 ZINC ION × 3 ;(1-{2-[bis(2-{4-[({(6R)-5-(acetylamino)-3,5-dideoxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]-beta-L-threo-hex-2-ulopyranonosyl}oxy)methyl]-1H-1,2,3-triazol-1-yl}ethyl)amino]ethyl}-1H-1,2,3-triazol-4-yl)methyl (6R)-5-(acetylamino)-3,5-dideoxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]-beta-L-threo-hex-2-ulopyranosidonic acid ; × 1 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q64823_9ADEN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 6–194； UniProt 177–365 Author chain B； PDBConstruct 6–194； UniProt 177–365 Author chain C； PDBConstruct 6–194； UniProt 177–365

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	4xqa
Deposition date deposition_date	2015-01-19
Structure title title	CRYSTAL STRUCTURE OF AD37 FIBER KNOB IN COMPLEX WITH TRIVALENT SIALIC ACID INHIBITOR ME0462
Keywords keywords	ADENOVIRUS, FIBER KNOB, PROTEIN CARBOHYDRATE INTERACTION, SIALIC ACID, CARBOHYDRATE MIMIC, MULTIVALENT LIGAND, VIRAL PROTEIN; VIRAL 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.

4xqa__assembly_1__model_1

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

Download this curve (.dat)

4xqa__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4xqa__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.21 Å
Rg (electron density)	22.77 Å
Total Rg	23.83 Å
Atom count	4435
Residues	551
Excluded volume	79281 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4xqa__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 (5)

Entity 1 Entity 1 polymer

Description description	Fiber
Molecular weight formula_weight	21716.5 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	5010

GAMGSWNPKYDTRTLWTTPDTSPNCTIAQDKDSKLTLVLTKCGSQILANVSLIVVAGKYHIINNKTNPKIKSFTIKLLFNKNGVLLDNSNLGKAYWNFRSGNSNVSTAYEKAIGFMPNLVAYPKPSNSKKYARDIVYGTIYLGGKPDQPAVIKTTFNQETGCEYSITFNFSWSKTYENVEFETTSFTFSYIAQE

Source Source

Source organism organism	Human adenovirus 37
NCBI taxonomy ID ncbi_taxonomy_id	52275
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	ACETATE ION
Molecular weight formula_weight	59.0 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 non-polymer

Description description	;(1-{2-[bis(2-{4-[({(6R)-5-(acetylamino)-3,5-dideoxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]-beta-L-threo-hex-2-ulopyranonosyl}oxy)methyl]-1H-1,2,3-triazol-1-yl}ethyl)amino]ethyl}-1H-1,2,3-triazol-4-yl)methyl (6R)-5-(acetylamino)-3,5-dideoxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]-beta-L-threo-hex-2-ulopyranosidonic acid ;
Molecular weight formula_weight	1266.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	540

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d4xqaa_
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

Domain ID domain_id	d4xqab_
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

Domain ID domain_id	d4xqac_
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 (3 domains)

Domain ID domain_id	4xqaA00
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

Domain ID domain_id	4xqaB00
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

Domain ID domain_id	4xqaC00
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	68.230 Å
Unit-cell length b length_b	75.620 Å
Unit-cell length c length_c	131.110 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 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.407 Å
Low-resolution limit resolution_low	47.272 Å
R factor r_factor	0.1449
R_work r_work	0.1435
R_free r_free	0.1723

CRYSTAL STRUCTURE OF AD37 FIBER KNOB IN COMPLEX WITH TRIVALENT SIALIC ACID INHIBITOR ME0462

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

Fiber

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

4xqa__assembly_1__model_1

4xqa__assembly_1__model_1 | I(q)

4xqa__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF AD37 FIBER KNOB IN COMPLEX WITH TRIVALENT SIALIC ACID INHIBITOR ME0462

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

Fiber

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

4xqa__assembly_1__model_1

4xqa__assembly_1__model_1 | I(q)

4xqa__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (1)