SAXSdb — 28wb

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

Protein STRUBBELIG-RECEPTOR FAMILY 6

Arabidopsis thaliana

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	SODIUM ION × 2 CITRIC ACID × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SRF6_ARATH
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–260； UniProt 26–285

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	28wb
Deposition date deposition_date	2026-02-23
Last revision last_revision	2026-03-04
Structure title title	Crystal structure of the STRUBBELIG-RECEPTOR FAMILY 6 (SRF6) ectodomain from Arabidopsis thaliana
Keywords keywords	receptor kinase, leucine-rich repeat domain, plant cell wall, signal transduction, MEMBRANE PROTEIN; MEMBRANE 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.

28wb__assembly_1__model_1

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

Download this curve (.dat)

28wb__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

28wb__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.70 Å
Rg (electron density)	18.72 Å
Total Rg	19.56 Å
Atom count	1710
Residues	226
Excluded volume	30335 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`28wb__assembly_1__model_1`	monomeric （1）	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 STRUBBELIG-RECEPTOR FAMILY 6
Molecular weight formula_weight	28527.6 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	2008

ATDASDTSALNTLFSGMHSPAQLTQWTAAAGDPCGQNWRGVTCSGSRVTQIKLSGLELSGTLGGYMLDKLTSLTELDLSSNNLGGDLPYQFPPNLQRLNLANNQFTGAASYSLSQITPLKYLNLGHNQFKGQIAIDFSKLDSLTTLDFSFNSFTNSLPATFSSLTSLKSLYLQNNQFSGTVDVLAGLPLETLNIANNDFTGWIPSSLKGITLIKDGNSFNTGPAPPPPPGTPPIRGSPSRKSGGRESRSSDESTRNGDSKLENLYFQ

Source Source

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

Entity 2 Entity 2 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	2

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	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	237

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Unit-cell length a length_a	76.720 Å
Unit-cell length b length_b	76.720 Å
Unit-cell length c length_c	86.430 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 43 21 2
Space-group number int_tables_number	96
Crystal system crystal_system	—

Resolution resolution	1.501 Å
Low-resolution limit resolution_low	45.948 Å
R factor r_factor	—
R_work r_work	0.1621
R_free r_free	0.1950

Crystal structure of the STRUBBELIG-RECEPTOR FAMILY 6 (SRF6) ectodomain from Arabidopsis thaliana

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

Protein STRUBBELIG-RECEPTOR FAMILY 6

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

28wb__assembly_1__model_1

28wb__assembly_1__model_1 | I(q)

28wb__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 (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

7. Citations (1)

Crystal structure of the STRUBBELIG-RECEPTOR FAMILY 6 (SRF6) ectodomain from Arabidopsis thaliana

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

Protein STRUBBELIG-RECEPTOR FAMILY 6

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

28wb__assembly_1__model_1

28wb__assembly_1__model_1 | I(q)

28wb__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 (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

7. Citations (1)