SAXSdb — 2q9r

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

Protein of unknown function

Shewanella baltica

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	SULFATE ION × 4 ACETATE ION × 2 BENZOIC ACID × 2 GLYCEROL × 12 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	A3D7B7_9GAMM
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–200； UniProt 1–199

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	2q9r
Deposition date deposition_date	2007-06-13
Structure title title	CRYSTAL STRUCTURE OF a DUF416 family protein (SBAL_3149) FROM SHEWANELLA BALTICA OS155 AT 1.91 A RESOLUTION
Keywords keywords	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.

2q9r__assembly_1__model_1

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

Download this curve (.dat)

2q9r__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2q9r__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.53 Å
Rg (electron density)	23.96 Å
Total Rg	24.71 Å
Atom count	3122
Residues	386
Excluded volume	56063 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2q9r__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 (6)

Entity 1 Entity 1 polymer

Description description	Protein of unknown function
Molecular weight formula_weight	22432.0 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1712

GMTKKTGFFKRLKALTLPQKQLFATALCQRMLPNYQLFSEVCEFGDPAVLSTALELLWQSLYDPKLKFNIDVHLQRLEDNTPEPADFEAYGVYPAMDAVVAISTLLGAIQGKIEEDIVNISKLSSSTVANYIEAISDVDLVDEALDDFVFAHEVMEEEKELQNSLLEIIEENPKITAELVKGLRKDIIETGVSNIGISVA

Source Source

Source organism organism	Shewanella baltica
NCBI taxonomy ID ncbi_taxonomy_id	325240
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	ACETATE ION
Molecular weight formula_weight	59.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	BENZOIC ACID
Molecular weight formula_weight	122.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	124

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id	2q9rA01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1590 — YP_001051499.1 fold like
Homologous superfamily homologous superfamily	10 — YP_001051499.1 domain like

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Unit-cell length a length_a	68.570 Å
Unit-cell length b length_b	77.140 Å
Unit-cell length c length_c	87.170 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	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	1.910 Å
Low-resolution limit resolution_low	29.062 Å
R factor r_factor	0.1710
R_work r_work	0.1690
R_free r_free	0.2150

CRYSTAL STRUCTURE OF a DUF416 family protein (SBAL_3149) FROM SHEWANELLA BALTICA OS155 AT 1.91 A RESOLUTION

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

Protein of unknown function

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

2q9r__assembly_1__model_1

2q9r__assembly_1__model_1 | I(q)

2q9r__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 (6)

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 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF a DUF416 family protein (SBAL_3149) FROM SHEWANELLA BALTICA OS155 AT 1.91 A RESOLUTION

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

Protein of unknown function

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

2q9r__assembly_1__model_1

2q9r__assembly_1__model_1 | I(q)

2q9r__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 (6)

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 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)