SAXSdb — 2ef7

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

Hypothetical protein ST2348

Sulfolobus tokodaii

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q96Y20_SULTO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–133； UniProt 1–133 Author chain B； PDBConstruct 1–133； UniProt 1–133

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	2ef7
Deposition date deposition_date	2007-02-21
Structure title title	Crystal structure of ST2348, a hypothetical protein with CBS domains from Sulfolobus tokodaii strain7
Keywords keywords	;CBS-domain, Structural Genomics, NPPSFA, National Project on Protein Structural and Functional Analyses, RIKEN Structural Genomics/Proteomics Initiative, RSGI, OXIDOREDUCTASE ;; OXIDOREDUCTASE
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.

2ef7__assembly_1__model_1

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

Download this curve (.dat)

2ef7__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2ef7__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	28.32 Å
Rg (electron density)	27.85 Å
Total Rg	28.39 Å
Atom count	3900
Residues	482
Excluded volume	71125 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2ef7__assembly_1__model_1`	tetrameric （4）	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) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2ef7a1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.37 — CBS-domain pair
Superfamily Superfamily superfamily	d.37.1 — CBS-domain pair
Family Family family	d.37.1.1 — CBS-domain pair

Domain ID domain_id	d2ef7b_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.37 — CBS-domain pair
Superfamily Superfamily superfamily	d.37.1 — CBS-domain pair
Family Family family	d.37.1.1 — CBS-domain pair

CATH v4.4 (2 domains)

Domain ID domain_id	2ef7A00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	580 — CBS-domain
Homologous superfamily homologous superfamily	10 — CBS-domain

Domain ID domain_id	2ef7B00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	580 — CBS-domain
Homologous superfamily homologous superfamily	10 — CBS-domain

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Unit-cell length a length_a	51.420 Å
Unit-cell length b length_b	135.272 Å
Unit-cell length c length_c	41.234 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	8

Space group space_group	P 21 21 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	2.100 Å
Low-resolution limit resolution_low	39.440 Å
R factor r_factor	0.2160
R_work r_work	0.2160
R_free r_free	0.2600

Description description	Hypothetical protein ST2348
Molecular weight formula_weight	15146.5 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	2084

Crystal structure of ST2348, a hypothetical protein with CBS domains from Sulfolobus tokodaii strain7

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

Hypothetical protein ST2348

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

2ef7__assembly_1__model_1

2ef7__assembly_1__model_1 | I(q)

2ef7__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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	Sulfolobus tokodaii
NCBI taxonomy ID ncbi_taxonomy_id	273063
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	134

Crystal structure of ST2348, a hypothetical protein with CBS domains from Sulfolobus tokodaii strain7

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

Hypothetical protein ST2348

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

2ef7__assembly_1__model_1

2ef7__assembly_1__model_1 | I(q)

2ef7__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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)