SAXSdb — 2q3v

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

Protein At2g34160

Arabidopsis thaliana

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	POTASSIUM ION × 4 NITRATE ION × 8 water × 4	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	POTASSIUM ION × 2 NITRATE ION × 4 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Y2416_ARATH
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–130； UniProt 2–130 Author chain B； PDBConstruct 2–130； UniProt 2–130

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	2q3v
Deposition date deposition_date	2007-05-30
Structure title title	Ensemble refinement of the protein crystal structure of gene product from Arabidopsis thaliana At2g34160
Keywords keywords	;Ensemble Refinement, Refinement Methodology Development, At2g34160, Unknown Function, Nitrate, Structural Genomics, Protein Structure Initiative, PSI, Center for Eukaryotic Structural Genomics, CESG ;; 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.

2q3v__assembly_2__model_2

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

Download this curve (.dat)

2q3v__assembly_2__model_2 | I(q)

100 plotted points; both axes use logarithmic scales.

2q3v__assembly_2__model_2 | P(r) · Pending

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

Rg（Guinier）	21.56 Å
Rg (electron density)	20.73 Å
Total Rg	21.41 Å
Atom count	1572
Residues	188
Excluded volume	28753 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2q3v__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`2q3v__assembly_1__model_2`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`2q3v__assembly_1__model_3`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`2q3v__assembly_1__model_4`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2q3v__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	2	`2q3v__assembly_2__model_2`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	3	`2q3v__assembly_2__model_3`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	4	`2q3v__assembly_2__model_4`	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	Protein At2g34160
Molecular weight formula_weight	14867.1 kDa
Mutation mutation	T83I, A126T
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	6932

SEEITDGVNNMNLATDSQKKNRIQVSNTKKPLFFYVNLAKRYMQQYNDVELSALGMAIATVVTVTEILKNNGFAVEKKIMTSIVDIKDDARGRPVQKAKIEITLVKSEKFDELMAAANEEKEDAETQVQN

Source Source

Source organism organism	Arabidopsis thaliana
Common name common_name	thale cress
NCBI taxonomy ID ncbi_taxonomy_id	3702
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	POTASSIUM ION
Molecular weight formula_weight	39.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	NITRATE ION
Molecular weight formula_weight	62.0 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	161

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2q3va_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.68 — IF3-like
Superfamily Superfamily superfamily	d.68.6 — AlbA-like
Family Family family	d.68.6.2 — Hypothetical protein At2g34160

Domain ID domain_id	d2q3vb_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.68 — IF3-like
Superfamily Superfamily superfamily	d.68.6 — AlbA-like
Family Family family	d.68.6.2 — Hypothetical protein At2g34160

CATH v4.4 (2 domains)

Domain ID domain_id	2q3vA00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	110 — Translation Initiation Factor IF3
Homologous superfamily homologous superfamily	20 — Alba-like domain

Domain ID domain_id	2q3vB00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	110 — Translation Initiation Factor IF3
Homologous superfamily homologous superfamily	20 — Alba-like domain

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Unit-cell length a length_a	59.785 Å
Unit-cell length b length_b	79.079 Å
Unit-cell length c length_c	43.730 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	1.800 Å
Low-resolution limit resolution_low	29.330 Å
R factor r_factor	0.1690
R_work r_work	0.1690
R_free r_free	0.2180

Ensemble refinement of the protein crystal structure of gene product from Arabidopsis thaliana At2g34160

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

Protein At2g34160

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

2q3v__assembly_2__model_2

2q3v__assembly_2__model_2 | I(q)

2q3v__assembly_2__model_2 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Ensemble refinement of the protein crystal structure of gene product from Arabidopsis thaliana At2g34160

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

Protein At2g34160

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

2q3v__assembly_2__model_2

2q3v__assembly_2__model_2 | I(q)

2q3v__assembly_2__model_2 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)