SAXSdb — 2ro4

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

Transition state regulatory protein abrB

Bacillus subtilis

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	ABRB_BACSU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–53； UniProt 3–55 Author chain B； PDBConstruct 1–53； UniProt 3–55

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	2ro4
Deposition date deposition_date	2008-03-08
Structure title title	RDC-refined Solution Structure of the N-terminal DNA Recognition Domain of the Bacillus subtilis Transition-state Regulator AbrB
Keywords keywords	Transcription, Activator, DNA-binding, Repressor, Sporulation, Transcription regulation; 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.

2ro4__assembly_1__model_2

Assembly 1 · Model 2 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2ro4__assembly_1__model_2 | I(q)

100 plotted points; both axes use logarithmic scales.

2ro4__assembly_1__model_2 | P(r) · Pending

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

Rg（Guinier）	15.06 Å
Rg (electron density)	13.39 Å
Total Rg	14.90 Å
Atom count	1792
Residues	106
Excluded volume	15697 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2ro4__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`2ro4__assembly_1__model_2`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`2ro4__assembly_1__model_3`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`2ro4__assembly_1__model_4`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`2ro4__assembly_1__model_5`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`2ro4__assembly_1__model_6`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`2ro4__assembly_1__model_7`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`2ro4__assembly_1__model_8`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`2ro4__assembly_1__model_9`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`2ro4__assembly_1__model_10`	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	d2ro4a_
Class class	b — All beta proteins
Fold Fold fold	b.129 — Double-split beta-barrel
Superfamily Superfamily superfamily	b.129.1 — AbrB/MazE/MraZ-like
Family Family family	b.129.1.3 — AbrB N-terminal domain-like

Domain ID domain_id	d2ro4b_
Class class	b — All beta proteins
Fold Fold fold	b.129 — Double-split beta-barrel
Superfamily Superfamily superfamily	b.129.1 — AbrB/MazE/MraZ-like
Family Family family	b.129.1.3 — AbrB N-terminal domain-like

CATH v4.4 (2 domains)

Domain ID domain_id	2ro4A00
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	260 — Pemi-like Protein 1; Chain: D
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	2ro4B00
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	260 — Pemi-like Protein 1; Chain: D
Homologous superfamily homologous superfamily	10 —

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Description description	Transition state regulatory protein abrB
Molecular weight formula_weight	6111.3 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	17920

Source organism organism	Bacillus subtilis
NCBI taxonomy ID ncbi_taxonomy_id	1423
Host organism host_organism	Escherichia coli

RDC-refined Solution Structure of the N-terminal DNA Recognition Domain of the Bacillus subtilis Transition-state Regulator AbrB

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

Transition state regulatory protein abrB

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

2ro4__assembly_1__model_2

2ro4__assembly_1__model_2 | I(q)

2ro4__assembly_1__model_2 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

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 (1)

RDC-refined Solution Structure of the N-terminal DNA Recognition Domain of the Bacillus subtilis Transition-state Regulator AbrB

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

Transition state regulatory protein abrB

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

2ro4__assembly_1__model_2

2ro4__assembly_1__model_2 | I(q)

2ro4__assembly_1__model_2 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

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 (1)