9s96

Crystal structure of the BRL3 ectodomain from Arabidopsis thaliana in complex with typhasterol.

Method: X-RAY DIFFRACTION

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

Receptor-like protein kinase BRI1-like 3

Arabidopsis thaliana

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Monomer	Protein 1 其他Polymer 9	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 7 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-D-mannopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose × 1 Typhasterol × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 SULFATE ION × 3 TRIETHYLENE GLYCOL × 1 water × 1	Consistent with protein count
2	Other combination	Monomer	Protein 1 其他Polymer 9	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 5 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-D-mannopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose × 1 Typhasterol × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 SULFATE ION × 5 TRIETHYLENE GLYCOL × 1 ACETATE ION × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	BRL3_ARATH
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–770； UniProt 1–770 Author chain B； PDBConstruct 1–770； UniProt 1–770

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	9s96
Deposition date deposition_date	2025-08-06
Structure title title	Crystal structure of the BRL3 ectodomain from Arabidopsis thaliana in complex with typhasterol.
Keywords keywords	receptor kinase, steroid receptor, brassinosteroids, leucine-rich repeat, 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.

9s96__assembly_1__model_1

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

Download this curve (.dat)

9s96__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9s96__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	31.07 Å
Rg (electron density)	30.18 Å
Total Rg	30.85 Å
Atom count	11525
Residues	715
Excluded volume	103330 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9s96__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`9s96__assembly_2__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 (13)

Entity 1 Entity 1 polymer

Description description	Receptor-like protein kinase BRI1-like 3
Molecular weight formula_weight	83619.5 kDa
EC 编号 ec_number	2.7.10.1,2.7.11.1
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	23348

MKQQWQFLILCLLVLFLTVDSRGRRLLSDDVNDTALLTAFKQTSIKSDPTNFLGNWRYGSGRDPCTWRGVSCSSDGRVIGLDLRNGGLTGTLNLNNLTALSNLRSLYLQGNNFSSGDSSSSSGCSLEVLDLSSNSLTDSSIVDYVFSTCLNLVSVNFSHNKLAGKLKSSPSASNKRITTVDLSNNRFSDEIPETFIADFPNSLKHLDLSGNNVTGDFSRLSFGLCENLTVFSLSQNSISGDRFPVSLSNCKLLETLNLSRNSLIGKIPGDDYWGNFQNLRQLSLAHNLYSGEIPPELSLLCRTLEVLDLSGNSLTGQLPQSFTSCGSLQSLNLGNNKLSGDFLSTVVSKLSRITNLYLPFNNISGSVPISLTNCSNLRVLDLSSNEFTGEVPSGFCSLQSSSVLEKLLIANNYLSGTVPVELGKCKSLKTIDLSFNALTGLIPKEIWTLPKLSDLVMWANNLTGGIPESICVDGGNLETLILNNNLLTGSLPESISKCTNMLWISLSSNLLTGEIPVGIGKLEKLAILQLGNNSLTGNIPSELGNCKNLIWLDLNSNNLTGNLPGELASQAGLVMPGSVSGKQFAFVRNEGGTDCRGAGGLVEFEGIRAERLEHFPMVHSCPKTRIYSGMTMYMFSSNGSMIYLDLSYNAVSGSIPLGYGAMGYLQVLNLGHNLLTGTIPDSFGGLKAIGVLDLSHNDLQGFLPGSLGGLSFLSDLDVSNNNLTGPIPFGGQLTTFPLTRYANNSGLCGVPLPPCSSGSRPTRSHAHPKKAAAENLYFQ

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 branched

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	424.4 kDa
Source method src_method	man
Copy count entity_count	12

Entity 3 Entity 3 branched

Description description	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	1883.7 kDa
Source method src_method	man
Copy count entity_count	1

Entity 4 Entity 4 branched

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-D-mannopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	586.5 kDa
Source method src_method	man
Copy count entity_count	2

Entity 5 Entity 5 branched

Description description	;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	1559.4 kDa
Source method src_method	man
Copy count entity_count	1

Entity 6 Entity 6 branched

Description description	alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose
Molecular weight formula_weight	342.3 kDa
Source method src_method	man
Copy count entity_count	1

Entity 7 Entity 7 branched

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	570.5 kDa
Source method src_method	man
Copy count entity_count	1

Entity 8 Entity 8 non-polymer

Description description	Typhasterol
Molecular weight formula_weight	448.7 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 9 Entity 9 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 10 Entity 10 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 11 Entity 11 non-polymer

Description description	TRIETHYLENE GLYCOL
Molecular weight formula_weight	150.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 12 Entity 12 non-polymer

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

Entity 13 Entity 13 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	234

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Unit-cell length a length_a	61.267 Å
Unit-cell length b length_b	81.848 Å
Unit-cell length c length_c	122.382 Å
Unit-cell angle α angle_alpha	106.96 °
Unit-cell angle β angle_beta	91.77 °
Unit-cell angle γ angle_gamma	112.83 °
Molecules per unit cell Z z_pdb	2

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	triclinic

Resolution resolution	2.310 Å
Low-resolution limit resolution_low	47.240 Å
R factor r_factor	0.2161
R_work r_work	0.2149
R_free r_free	0.2389

Crystal structure of the BRL3 ectodomain from Arabidopsis thaliana in complex with typhasterol.

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

Receptor-like protein kinase BRI1-like 3

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

9s96__assembly_1__model_1

9s96__assembly_1__model_1 | I(q)

9s96__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 (13)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 branched

Entity 4 Entity 4 branched

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 branched

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 non-polymer

Entity 11 Entity 11 non-polymer

Entity 12 Entity 12 non-polymer

Entity 13 Entity 13 water

7. Citations (1)

Crystal structure of the BRL3 ectodomain from Arabidopsis thaliana in complex with typhasterol.

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

Receptor-like protein kinase BRI1-like 3

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

9s96__assembly_1__model_1

9s96__assembly_1__model_1 | I(q)

9s96__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 (13)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 branched

Entity 4 Entity 4 branched

Entity 5 Entity 5 branched

Entity 6 Entity 6 branched

Entity 7 Entity 7 branched

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 non-polymer

Entity 11 Entity 11 non-polymer

Entity 12 Entity 12 non-polymer

Entity 13 Entity 13 water

7. Citations (1)