SAXSdb — 2qnl

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

Uncharacterized protein

Cytophaga hutchinsonii ATCC 33406

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 × 4 SULFATE ION × 2 GLYCEROL × 10 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q11XA0_CYTH3
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–162； UniProt 1–161

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	2qnl
Deposition date deposition_date	2007-07-18
Structure title title	CRYSTAL STRUCTURE OF A PUTATIVE DNA DAMAGE-INDUCIBLE PROTEIN (CHU_0679) FROM CYTOPHAGA HUTCHINSONII ATCC 33406 AT 1.50 A RESOLUTION
Keywords keywords	;PUTATIVE DNA DAMAGE-INDUCIBLE PROTEIN, STRUCTURAL GENOMICS, JOINT CENTER FOR STRUCTURAL GENOMICS, JCSG, PROTEIN STRUCTURE INITIATIVE, PSI-2, SIGNALING PROTEIN ;; SIGNALING PROTEIN
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.

2qnl__assembly_1__model_1

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

Download this curve (.dat)

2qnl__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2qnl__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.98 Å
Rg (electron density)	20.17 Å
Total Rg	20.97 Å
Atom count	2636
Residues	318
Excluded volume	47022 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2qnl__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 (5)

Entity 1 Entity 1 polymer

Description description	Uncharacterized protein
Molecular weight formula_weight	18590.6 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	1648

GMHTQEALFVRLALDAWNTQSSRTDKLIQSLSNEALAVETAPGRNSGTYLLGHLTAVHDAMLPLLELGDTLYPQLAPVFIQNPDKSGLEKPEINDLRLYWSLVQERLANQFNQLQPADWFNKHAAISREDFLKEPHRNKLSVLINRTNHMAYHLGQLAYLKK

Source Source

Source organism organism	Cytophaga hutchinsonii ATCC 33406
NCBI taxonomy ID ncbi_taxonomy_id	269798
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	2

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

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	5

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	250

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id	2qnlA00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily	450 — dinb family like domain

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Unit-cell length a length_a	64.800 Å
Unit-cell length b length_b	64.800 Å
Unit-cell length c length_c	148.870 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	12

Space group space_group	P 61 2 2
Space-group number int_tables_number	178
Crystal system crystal_system	—

Resolution resolution	1.500 Å
Low-resolution limit resolution_low	28.061 Å
R factor r_factor	0.1610
R_work r_work	0.1590
R_free r_free	0.1850

CRYSTAL STRUCTURE OF A PUTATIVE DNA DAMAGE-INDUCIBLE PROTEIN (CHU_0679) FROM CYTOPHAGA HUTCHINSONII ATCC 33406 AT 1.50 A RESOLUTION

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

2qnl__assembly_1__model_1

2qnl__assembly_1__model_1 | I(q)

2qnl__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) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF A PUTATIVE DNA DAMAGE-INDUCIBLE PROTEIN (CHU_0679) FROM CYTOPHAGA HUTCHINSONII ATCC 33406 AT 1.50 A RESOLUTION

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

2qnl__assembly_1__model_1

2qnl__assembly_1__model_1 | I(q)

2qnl__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) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)