SAXSdb — 3bt3

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

Glyoxalase-related enzyme, AraC type

Clostridium phytofermentans

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q1FJ26_9CLOT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–146； UniProt 122–265 Author chain B； PDBConstruct 3–146； UniProt 122–265

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	3bt3
Deposition date deposition_date	2007-12-27
Structure title title	Crystal structure of a glyoxalase-related enzyme from Clostridium phytofermentans
Keywords keywords	;Glyoxalase related enzyme, VOC Superfamily, Clostridium phytofermentans, PSI-2, NYSGXRC, Structural Genomics, Protein Structure Initiative, New York SGX Research Center for Structural Genomics, DNA-binding, Transcription, Transcription regulation, UNKNOWN FUNCTION ;; STRUCTURAL GENOMICS, UNKNOWN FUNCTION
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.

3bt3__assembly_1__model_1

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

Download this curve (.dat)

3bt3__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3bt3__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.68 Å
Rg (electron density)	18.37 Å
Total Rg	19.34 Å
Atom count	2078
Residues	258
Excluded volume	36766 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3bt3__assembly_1__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) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	3bt3A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1900 — glyoxalase-related enzyme like fold
Homologous superfamily homologous superfamily	10 — glyoxalase-related enzyme like domain

Domain ID domain_id	3bt3A02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	720 — Signal recognition particle alu RNA binding heterodimer, srp9/1
Homologous superfamily homologous superfamily	110 —

Domain ID domain_id	3bt3B01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1900 — glyoxalase-related enzyme like fold
Homologous superfamily homologous superfamily	10 — glyoxalase-related enzyme like domain

Domain ID domain_id	3bt3B02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	720 — Signal recognition particle alu RNA binding heterodimer, srp9/1
Homologous superfamily homologous superfamily	110 —

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Unit-cell length a length_a	86.410 Å
Unit-cell length b length_b	87.100 Å
Unit-cell length c length_c	50.700 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	2.500 Å
Low-resolution limit resolution_low	43.820 Å
R factor r_factor	0.2220
R_work r_work	0.2220
R_free r_free	0.2700

Description description	Glyoxalase-related enzyme, AraC type
Molecular weight formula_weight	16958.1 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	2169

Crystal structure of a glyoxalase-related enzyme from Clostridium phytofermentans

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

Glyoxalase-related enzyme, AraC type

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

3bt3__assembly_1__model_1

3bt3__assembly_1__model_1 | I(q)

3bt3__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

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Clostridium phytofermentans
NCBI taxonomy ID ncbi_taxonomy_id	357809
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	91

Crystal structure of a glyoxalase-related enzyme from Clostridium phytofermentans

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

Glyoxalase-related enzyme, AraC type

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

3bt3__assembly_1__model_1

3bt3__assembly_1__model_1 | I(q)

3bt3__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

CATH v4.4 (4 domains)

7. Citations (1)