SAXSdb — 3clo

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

Transcriptional regulator

Bacteroides thetaiotaomicron VPI-5482

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	CHLORIDE ION × 5 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	CHLORIDE ION × 4 SODIUM ION × 4 GLYCEROL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8A5Q7_BACTN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–258； UniProt 1–257 Author chain B； PDBConstruct 2–258； UniProt 1–257 Author chain C； PDBConstruct 2–258； UniProt 1–257

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	3clo
Deposition date deposition_date	2008-03-19
Structure title title	Crystal structure of putative transcriptional regulator containing a LuxR DNA binding domain (NP_811094.1) from Bacteroides thetaiotaomicron VPI-5482 at 2.04 A resolution
Keywords keywords	;NP_811094.1, Putative Transcriptional Regulator Containing a LuxR DNA Binding Domain, Bacterial regulatory proteins, luxR family, Structural Genomics, Joint Center for Structural Genomics, JCSG, Protein Structure Initiative, PSI-2, DNA-binding, Transcription regulation, TRANSCRIPTION REGULATOR ;; TRANSCRIPTION REGULATOR
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.

3clo__assembly_1__model_1

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

Download this curve (.dat)

3clo__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3clo__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.30 Å
Rg (electron density)	27.26 Å
Total Rg	27.64 Å
Atom count	4095
Residues	498
Excluded volume	73096 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3clo__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3clo__assembly_2__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 (5)

Entity 1 Entity 1 polymer

Description description	Transcriptional regulator
Molecular weight formula_weight	30092.0 kDa
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	6652

GMDVLQKEIDEVYATHPTAHEALDNGIVEQHQQFVRSLTEVNGGCAVISDLSNRKSYVTVHPWANFLGLTPEEAALSVIDSMDEDCIYRRIHPEDLVEKRLMEYKFFQKTFSMSPGERLKYRGRCRLRMMNEKGVYQYIDNLVQIMQNTPAGNVWLIFCLYSLSADQRPEQGIYATITQMERGEVETLSLSEEHRNILSEREKEILRCIRKGLSSKEIAATLYISVNTVNRHRQNILEKLSVGNSIEACRAAELMKLL

Source Source

Source organism organism	Bacteroides thetaiotaomicron VPI-5482
NCBI taxonomy ID ncbi_taxonomy_id	226186
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	7

Entity 3 Entity 3 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	494

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6. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id	3cloA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	20 — PAS domain

Domain ID domain_id	3cloA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

Domain ID domain_id	3cloB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	20 — PAS domain

Domain ID domain_id	3cloB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

Domain ID domain_id	3cloC01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	20 — PAS domain

Domain ID domain_id	3cloC02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

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Unit-cell length a length_a	233.650 Å
Unit-cell length b length_b	233.650 Å
Unit-cell length c length_c	125.273 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	54

Space group space_group	H 3 2
Space-group number int_tables_number	155
Crystal system crystal_system	—

Resolution resolution	2.040 Å
Low-resolution limit resolution_low	48.450 Å
R factor r_factor	0.1890
R_work r_work	0.1870
R_free r_free	0.2170

Crystal structure of putative transcriptional regulator containing a LuxR DNA binding domain (NP_811094.1) from Bacteroides thetaiotaomicron VPI-5482 at 2.04 A resolution

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

Transcriptional regulator

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

3clo__assembly_1__model_1

3clo__assembly_1__model_1 | I(q)

3clo__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

7. Citations (1)

Crystal structure of putative transcriptional regulator containing a LuxR DNA binding domain (NP_811094.1) from Bacteroides thetaiotaomicron VPI-5482 at 2.04 A resolution

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

Transcriptional regulator

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

3clo__assembly_1__model_1

3clo__assembly_1__model_1 | I(q)

3clo__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

7. Citations (1)