SAXSdb — 3bqb

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

Putative uncharacterized protein

Sulfolobus solfataricus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	MAGNESIUM ION × 4 water × 4	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	MAGNESIUM ION × 2 water × 2	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 2	MAGNESIUM ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q97UA0_SULSO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–293； UniProt 6–298 Author chain X； PDBConstruct 1–293； UniProt 6–298 Author chain Y； PDBConstruct 1–293； UniProt 6–298 Author chain Z； PDBConstruct 1–293； UniProt 6–298

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	3bqb
Deposition date deposition_date	2007-12-20
Structure title title	Hexagonal kristal form of 2-keto-3-deoxyarabinonate dehydratase
Keywords keywords	FAH-family fold, LYASE; LYASE
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.

3bqb__assembly_1__model_1

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

Download this curve (.dat)

3bqb__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3bqb__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	37.33 Å
Rg (electron density)	36.73 Å
Total Rg	37.20 Å
Atom count	9028
Residues	1137
Excluded volume	162410 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3bqb__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3bqb__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`3bqb__assembly_3__model_1`	dimeric （2）	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 (3)

Entity 1 Entity 1 polymer

Description description	Putative uncharacterized protein
Molecular weight formula_weight	33185.1 kDa
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,X,Z,Y
Atom count atom_count	9084

MKLFRVVKRGYYISYAILDNSTIIRLDEDPIKALMRYSENKEVLGDRVTGIDYQSLLKSFQINDIRITKPIDPPEVWGSGISYEMARERYSEENVAKILGKTIYEKVYDAVRPEIFFKATPNRCVGHGEAIAVRSDSEWTLPEPELAVVLDSNGKILGYTIMDDVSARDLEAENPLYLPQSKIYAGCCAFGPVIVTSDEIKNPYSLDITLKIVREGRVFFEGSVNTNKMRRKIEEQIQYLIRDNPIPDGTILTTGTAIVPGRDKGLKDEDIVEITISNIGTLITPVKKRRKIT

Source Source

Source organism organism	Sulfolobus solfataricus
NCBI taxonomy ID ncbi_taxonomy_id	273057
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	56

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6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id	3bqbA01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	330 — Vcp-like ATPase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	3bqbA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	850 — Fumarylacetoacetate hydrolase; domain 2
Homologous superfamily homologous superfamily	10 — Fumarylacetoacetase-like, C-terminal domain

Domain ID domain_id	3bqbX01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	330 — Vcp-like ATPase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	3bqbX02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	850 — Fumarylacetoacetate hydrolase; domain 2
Homologous superfamily homologous superfamily	10 — Fumarylacetoacetase-like, C-terminal domain

Domain ID domain_id	3bqbY01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	330 — Vcp-like ATPase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	3bqbY02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	850 — Fumarylacetoacetate hydrolase; domain 2
Homologous superfamily homologous superfamily	10 — Fumarylacetoacetase-like, C-terminal domain

Domain ID domain_id	3bqbZ01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	330 — Vcp-like ATPase; Chain A, domain 2
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	3bqbZ02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	850 — Fumarylacetoacetate hydrolase; domain 2
Homologous superfamily homologous superfamily	10 — Fumarylacetoacetase-like, C-terminal domain

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Unit-cell length a length_a	157.092 Å
Unit-cell length b length_b	157.092 Å
Unit-cell length c length_c	131.921 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	24

Space group space_group	P 61
Space-group number int_tables_number	169
Crystal system crystal_system	—

Resolution resolution	2.700 Å
Low-resolution limit resolution_low	33.740 Å
R factor r_factor	0.2403
R_work r_work	0.2381
R_free r_free	0.2836

Hexagonal kristal form of 2-keto-3-deoxyarabinonate dehydratase

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

Putative uncharacterized 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

3bqb__assembly_1__model_1

3bqb__assembly_1__model_1 | I(q)

3bqb__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)

Hexagonal kristal form of 2-keto-3-deoxyarabinonate dehydratase

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

Putative uncharacterized 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

3bqb__assembly_1__model_1

3bqb__assembly_1__model_1 | I(q)

3bqb__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)