SAXSdb — 2rb6

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

Uncharacterized protein

Shewanella oneidensis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
3	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	Q8EI81_SHEON
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–53； UniProt 25–76 Author chain B； PDBConstruct 2–53； UniProt 25–76

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	2rb6
Deposition date deposition_date	2007-09-18
Structure title title	X-Ray structure of the protein Q8EI81. Northeast Structural Genomics Consortium target SoR78A
Keywords keywords	;NESG, Q8EI81_SHEON, Structural Genomics, PSI-2, Protein Structure Initiative, Northeast Structural Genomics Consortium, 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.

2rb6__assembly_2__model_1

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

Download this curve (.dat)

2rb6__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2rb6__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	13.12 Å
Rg (electron density)	11.83 Å
Total Rg	12.98 Å
Atom count	458
Residues	52
Excluded volume	8183 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2rb6__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2rb6__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`2rb6__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 (2)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2rb6a1
Class class	b — All beta proteins
Fold Fold fold	b.38 — Sm-like fold
Superfamily Superfamily superfamily	b.38.1 — Sm-like ribonucleoproteins
Family Family family	b.38.1.6 — YgdI/YgdR-like

Domain ID domain_id	d2rb6a2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d2rb6b2
Class class	b — All beta proteins
Fold Fold fold	b.38 — Sm-like fold
Superfamily Superfamily superfamily	b.38.1 — Sm-like ribonucleoproteins
Family Family family	b.38.1.6 — YgdI/YgdR-like

Domain ID domain_id	d2rb6b3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id	2rb6A00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	2rb6B00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	100 —

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Unit-cell length a length_a	49.880 Å
Unit-cell length b length_b	109.354 Å
Unit-cell length c length_c	27.070 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	19.920 Å
R factor r_factor	0.2410
R_work r_work	0.2410
R_free r_free	0.2800

Description description	Uncharacterized protein
Molecular weight formula_weight	7512.7 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	972

X-Ray structure of the protein Q8EI81. Northeast Structural Genomics Consortium target SoR78A

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

Uncharacterized 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

2rb6__assembly_2__model_1

2rb6__assembly_2__model_1 | I(q)

2rb6__assembly_2__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) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	Shewanella oneidensis
NCBI taxonomy ID ncbi_taxonomy_id	211586
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	46

X-Ray structure of the protein Q8EI81. Northeast Structural Genomics Consortium target SoR78A

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

Uncharacterized 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

2rb6__assembly_2__model_1

2rb6__assembly_2__model_1 | I(q)

2rb6__assembly_2__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) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (1)