SAXSdb — 2ec2

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

136aa long hypothetical transposase

Sulfolobus tokodaii

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q974H8_SULTO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–136； UniProt 1–136 Author chain B； PDBConstruct 1–136； UniProt 1–136 Author chain C； PDBConstruct 1–136； UniProt 1–136 Author chain D； PDBConstruct 1–136； UniProt 1–136 Author chain E； PDBConstruct 1–136； UniProt 1–136 Author chain F； PDBConstruct 1–136； UniProt 1–136

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	2ec2
Deposition date deposition_date	2007-02-09
Structure title title	Crystal structure of transposase from Sulfolobus tokodaii
Keywords keywords	Transposase, Sulfolobus tokodaii, GENE REGULATION; GENE REGULATION
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.

2ec2__assembly_1__model_1

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

Download this curve (.dat)

2ec2__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2ec2__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.99 Å
Rg (electron density)	21.46 Å
Total Rg	22.41 Å
Atom count	2175
Residues	260
Excluded volume	39098 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2ec2__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2ec2__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`2ec2__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 (2)

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d2ec2a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.57 — Transposase IS200-like
Family Family family	d.58.57.1 — Transposase IS200-like

Domain ID domain_id	d2ec2b_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.57 — Transposase IS200-like
Family Family family	d.58.57.1 — Transposase IS200-like

Domain ID domain_id	d2ec2c_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.57 — Transposase IS200-like
Family Family family	d.58.57.1 — Transposase IS200-like

Domain ID domain_id	d2ec2d_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.57 — Transposase IS200-like
Family Family family	d.58.57.1 — Transposase IS200-like

Domain ID domain_id	d2ec2e_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.57 — Transposase IS200-like
Family Family family	d.58.57.1 — Transposase IS200-like

Domain ID domain_id	d2ec2f_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.57 — Transposase IS200-like
Family Family family	d.58.57.1 — Transposase IS200-like

CATH v4.4 (6 domains)

Domain ID domain_id	2ec2A00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	1290 — Transposase IS200-like

Domain ID domain_id	2ec2B00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	1290 — Transposase IS200-like

Domain ID domain_id	2ec2C00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	1290 — Transposase IS200-like

Domain ID domain_id	2ec2D00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	1290 — Transposase IS200-like

Domain ID domain_id	2ec2E00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	1290 — Transposase IS200-like

Domain ID domain_id	2ec2F00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	1290 — Transposase IS200-like

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Unit-cell length a length_a	55.118 Å
Unit-cell length b length_b	66.566 Å
Unit-cell length c length_c	69.472 Å
Unit-cell angle α angle_alpha	107.96 °
Unit-cell angle β angle_beta	104.39 °
Unit-cell angle γ angle_gamma	110.72 °
Molecules per unit cell Z z_pdb	6

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

Resolution resolution	2.800 Å
Low-resolution limit resolution_low	25.780 Å
R factor r_factor	0.2063
R_work r_work	0.2014
R_free r_free	0.2986

Description description	136aa long hypothetical transposase
Molecular weight formula_weight	16075.5 kDa
Source method src_method	man
Copy count entity_count	6

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	6497

Crystal structure of transposase from Sulfolobus tokodaii

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

136aa long hypothetical transposase

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

2ec2__assembly_1__model_1

2ec2__assembly_1__model_1 | I(q)

2ec2__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 non-polymer

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)

Source organism organism	Sulfolobus tokodaii
NCBI taxonomy ID ncbi_taxonomy_id	111955
Host organism host_organism	Escherichia coli

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	8

Crystal structure of transposase from Sulfolobus tokodaii

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

136aa long hypothetical transposase

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

2ec2__assembly_1__model_1

2ec2__assembly_1__model_1 | I(q)

2ec2__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 non-polymer

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)