SAXSdb — 1exe

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

TRANSCRIPTION FACTOR 1

Bacillus phage SPO1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TF1_BPSP1
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–99； UniProt 1–99 Author chain B； PDBConstruct 1–99； UniProt 1–99

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	1exe
Deposition date deposition_date	2000-05-02
Structure title title	SOLUTION STRUCTURE OF A MUTANT OF TRANSCRIPTION FACTOR 1.
Keywords keywords	beta ribbon arms, DNA-binding, DNA-bending protein, TRANSCRIPTION; TRANSCRIPTION
Experimental Method method	SOLUTION NMR

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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.

1exe__assembly_1__model_17

Assembly 1 · Model 17 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1exe__assembly_1__model_17 | I(q)

100 plotted points; both axes use logarithmic scales.

1exe__assembly_1__model_17 | P(r) · Pending

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

Rg（Guinier）	20.88 Å
Rg (electron density)	19.72 Å
Total Rg	20.44 Å
Atom count	3090
Residues	198
Excluded volume	27209 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1exe__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`1exe__assembly_1__model_2`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`1exe__assembly_1__model_3`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`1exe__assembly_1__model_4`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`1exe__assembly_1__model_5`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`1exe__assembly_1__model_6`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`1exe__assembly_1__model_7`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`1exe__assembly_1__model_8`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`1exe__assembly_1__model_9`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`1exe__assembly_1__model_10`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`1exe__assembly_1__model_11`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	12	`1exe__assembly_1__model_12`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	13	`1exe__assembly_1__model_13`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	14	`1exe__assembly_1__model_14`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	15	`1exe__assembly_1__model_15`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	16	`1exe__assembly_1__model_16`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	17	`1exe__assembly_1__model_17`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	18	`1exe__assembly_1__model_18`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	19	`1exe__assembly_1__model_19`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	20	`1exe__assembly_1__model_20`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	21	`1exe__assembly_1__model_21`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	22	`1exe__assembly_1__model_22`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	23	`1exe__assembly_1__model_23`	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 (1)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1exea_
Class class	a — All alpha proteins
Fold Fold fold	a.55 — IHF-like DNA-binding proteins
Superfamily Superfamily superfamily	a.55.1 — IHF-like DNA-binding proteins
Family Family family	a.55.1.1 — Prokaryotic DNA-bending protein

Domain ID domain_id	d1exeb_
Class class	a — All alpha proteins
Fold Fold fold	a.55 — IHF-like DNA-binding proteins
Superfamily Superfamily superfamily	a.55.1 — IHF-like DNA-binding proteins
Family Family family	a.55.1.1 — Prokaryotic DNA-bending protein

CATH v4.4 (2 domains)

Domain ID domain_id	1exeA00
Class class	4 — Few Secondary Structures
Architecture architecture	10 — Irregular
Topology topology	520 — HU Protein; Chain A
Homologous superfamily homologous superfamily	10 — IHF-like DNA-binding proteins

Domain ID domain_id	1exeB00
Class class	4 — Few Secondary Structures
Architecture architecture	10 — Irregular
Topology topology	520 — HU Protein; Chain A
Homologous superfamily homologous superfamily	10 — IHF-like DNA-binding proteins

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	1

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

Description description	TRANSCRIPTION FACTOR 1
Molecular weight formula_weight	10692.4 kDa
Mutation mutation	E15G;T32I
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	71070

Source organism organism	Bacillus phage SPO1
NCBI taxonomy ID ncbi_taxonomy_id	10685
Host organism host_organism	Escherichia coli

SOLUTION STRUCTURE OF A MUTANT OF TRANSCRIPTION FACTOR 1.

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

TRANSCRIPTION FACTOR 1

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

1exe__assembly_1__model_17

1exe__assembly_1__model_17 | I(q)

1exe__assembly_1__model_17 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)

SOLUTION STRUCTURE OF A MUTANT OF TRANSCRIPTION FACTOR 1.

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

TRANSCRIPTION FACTOR 1

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

1exe__assembly_1__model_17

1exe__assembly_1__model_17 | I(q)

1exe__assembly_1__model_17 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)