SAXSdb — 3bb5

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

Stress responsive alpha-beta protein

Jannaschia sp.

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	1,2-ETHANEDIOL × 1 CITRIC ACID × 1 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	1,2-ETHANEDIOL × 1 CITRIC ACID × 2 water × 2	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 2	1,2-ETHANEDIOL × 2 CITRIC ACID × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q28KC0_JANSC
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 20–121； UniProt 1–102 Author chain B； PDBConstruct 20–121； UniProt 1–102 Author chain C； PDBConstruct 20–121； UniProt 1–102 Author chain D； PDBConstruct 20–121； UniProt 1–102 Author chain E； PDBConstruct 20–121； UniProt 1–102 Author chain F； PDBConstruct 20–121； UniProt 1–102

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	3bb5
Deposition date deposition_date	2007-11-09
Structure title title	CRYSTAL STRUCTURE OF A DIMERIC FERREDOXIN-LIKE PROTEIN OF UNKNOWN FUNCTION (JANN_3925) FROM JANNASCHIA SP. CCS1 AT 2.30 A RESOLUTION
Keywords keywords	;DIMERIC FERREDOXIN-LIKE PROTEIN, STRUCTURAL GENOMICS, JOINT CENTER FOR STRUCTURAL GENOMICS, JCSG, PROTEIN STRUCTURE INITIATIVE, PSI-2, UNKNOWN FUNCTION ;; 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.

3bb5__assembly_3__model_1

Assembly 3 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3bb5__assembly_3__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3bb5__assembly_3__model_1 | P(r) · Pending

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

Rg（Guinier）	17.68 Å
Rg (electron density)	16.52 Å
Total Rg	17.37 Å
Atom count	1605
Residues	195
Excluded volume	28601 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3bb5__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3bb5__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`3bb5__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 (4)

Entity 1 Entity 1 polymer

Description description	Stress responsive alpha-beta protein
Molecular weight formula_weight	13906.7 kDa
Source method src_method	man
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	5027

MGSDKIHHHHHHENLYFQGMLYHLVMLEPEGEGAMDRIMEAMAILDGLAPELPGLTEFRHGPNRDFEQKSERYPYGFLCTFTDKAALDAYAVHPTHQRAGGMLVASCRNGADGILVVDLEV

Source Source

Source organism organism	Jannaschia sp.
NCBI taxonomy ID ncbi_taxonomy_id	290400
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	1,2-ETHANEDIOL
Molecular weight formula_weight	62.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	CITRIC ACID
Molecular weight formula_weight	192.1 kDa
Source method src_method	syn
Copy count entity_count	5

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	175

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6. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id	3bb5A00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	3bb5B00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	3bb5C00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	3bb5D00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	3bb5E00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	3bb5F00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

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Unit-cell length a length_a	147.721 Å
Unit-cell length b length_b	66.323 Å
Unit-cell length c length_c	110.452 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	93.41 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	24

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	29.841 Å
R factor r_factor	0.1810
R_work r_work	0.1790
R_free r_free	0.2220

CRYSTAL STRUCTURE OF A DIMERIC FERREDOXIN-LIKE PROTEIN OF UNKNOWN FUNCTION (JANN_3925) FROM JANNASCHIA SP. CCS1 AT 2.30 A RESOLUTION

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

Stress responsive alpha-beta protein

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

3bb5__assembly_3__model_1

3bb5__assembly_3__model_1 | I(q)

3bb5__assembly_3__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 (4)

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 water

6. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF A DIMERIC FERREDOXIN-LIKE PROTEIN OF UNKNOWN FUNCTION (JANN_3925) FROM JANNASCHIA SP. CCS1 AT 2.30 A RESOLUTION

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

Stress responsive alpha-beta protein

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

3bb5__assembly_3__model_1

3bb5__assembly_3__model_1 | I(q)

3bb5__assembly_3__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 (4)

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 water

6. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

7. Citations (1)