3qb4

Crystal structure of a TGF-beta ligand-receptor complex

Method: X-RAY DIFFRACTION Dmax: 77.5 Å Quality: GOOD

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

Growth/differentiation factor 5

Homo sapiens

UniProt P43026

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 387–501 Fragment:GDF-5, residues 387-501 Mutation:R57A Bone morphogenetic protein receptor type-1A × 1 (P36894) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;294 K;0.1M Hepes pH 7.5, 0.2M NaCl 20% (w/v) PEG3350 , VAPOR DIFFUSION, HANGING DROP, temperature 294K Resolution 2.28 Å R-free 0.241
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 387–501 Fragment:GDF-5, residues 387-501 Mutation:R57A Bone morphogenetic protein receptor type-1A × 1 (P36894) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;294 K;0.1M Hepes pH 7.5, 0.2M NaCl 20% (w/v) PEG3350 , VAPOR DIFFUSION, HANGING DROP, temperature 294K Resolution 2.28 Å R-free 0.241
3 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 387–501 Chain C; UniProt 387–501 Fragment:GDF-5, residues 387-501 Mutation:R57A Bone morphogenetic protein receptor type-1A × 2 (P36894) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;294 K;0.1M Hepes pH 7.5, 0.2M NaCl 20% (w/v) PEG3350 , VAPOR DIFFUSION, HANGING DROP, temperature 294K Resolution 2.28 Å R-free 0.241

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

14 other PDB entries and 20 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GDF5_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–117; UniProt 387–501 Author chain C; PDBConstruct 3–117; UniProt 387–501

Bone morphogenetic protein receptor type-1A

Homo sapiens

UniProt P36894

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 24–152 Fragment:BMP receptor BMPR-IA, residues 24-152 Growth/differentiation factor 5 × 1 (P43026) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;294 K;0.1M Hepes pH 7.5, 0.2M NaCl 20% (w/v) PEG3350 , VAPOR DIFFUSION, HANGING DROP, temperature 294K Resolution 2.28 Å R-free 0.241
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 24–152 Fragment:BMP receptor BMPR-IA, residues 24-152 Growth/differentiation factor 5 × 1 (P43026) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;294 K;0.1M Hepes pH 7.5, 0.2M NaCl 20% (w/v) PEG3350 , VAPOR DIFFUSION, HANGING DROP, temperature 294K Resolution 2.28 Å R-free 0.241
3 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain B; UniProt 24–152 Chain D; UniProt 24–152 Fragment:BMP receptor BMPR-IA, residues 24-152 Growth/differentiation factor 5 × 2 (P43026) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;294 K;0.1M Hepes pH 7.5, 0.2M NaCl 20% (w/v) PEG3350 , VAPOR DIFFUSION, HANGING DROP, temperature 294K Resolution 2.28 Å R-free 0.241

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

10 other PDB entries and 13 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BMR1A_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 7–135; UniProt 24–152 Author chain D; PDBConstruct 7–135; UniProt 24–152

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.

SAXS scattering curve SAXS Profile

SAXS profile for 3qb4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3qb4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3qb4
Deposition date deposition_date2011-01-12
Structure title titleCrystal structure of a TGF-beta ligand-receptor complex
Keywords keywordsCYSTINE-KNOT, Ligand-receptor complex, Protein, Membrane/Extracellular, CYTOKINE-TRANSFERASE RECEPTOR complex; CYTOKINE/TRANSFERASE RECEPTOR
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier24.01
Radius of gyration Rg (electron density) rg_electron23.67
Forward intensity I(0) i035319300.00
Molecular weight molecular_weight43356.0 kDa
Excluded volume excluded_volume53188 ų
Envelope volume envelope_volume66136 ų
Hydration-shell volume shell_volume23571 ų
Envelope diameter envelope_diameter79.9
Shell Rg shell_rg30.23
Envelope Rg envelope_rg23.90
Shape Rg shape_rg23.72
Total Rg total_rg24.30
Total atoms total_atoms3015
Residues n_residues388
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax77.5
Rg (real space) rg_real24.03
Rg uncertainty (real space) rg_real_error0.42
I(0) (real space) i0_real3.5320e+07
I(0) uncertainty (real space) i0_real_error4.5620e+05
Rg (reciprocal space) rg_reciprocal24.03
I(0) (reciprocal space) i0_reciprocal35320000.0000
Solution quality estimate total_estimate0.8936
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.4
Skewness Skewness skewness0.360
Kurtosis Kurtosis kurtosis-0.462
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5673000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.890; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.970; Smooth: 0.973

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3qb4a_
Class classg — Small proteins
Fold Fold foldg.17 — Cystine-knot cytokines
Superfamily Superfamily superfamilyg.17.1 — Cystine-knot cytokines
Family Family familyg.17.1.0 — automated matches
Domain ID domain_idd3qb4b_
Class classg — Small proteins
Fold Fold foldg.7 — Snake toxin-like
Superfamily Superfamily superfamilyg.7.1 — Snake toxin-like
Family Family familyg.7.1.3 — Extracellular domain of cell surface receptors
Domain ID domain_idd3qb4c_
Class classg — Small proteins
Fold Fold foldg.17 — Cystine-knot cytokines
Superfamily Superfamily superfamilyg.17.1 — Cystine-knot cytokines
Family Family familyg.17.1.0 — automated matches
Domain ID domain_idd3qb4d_
Class classg — Small proteins
Fold Fold foldg.7 — Snake toxin-like
Superfamily Superfamily superfamilyg.7.1 — Snake toxin-like
Family Family familyg.7.1.3 — Extracellular domain of cell surface receptors

CATH v4.4 (4 domains)

Domain ID domain_id3qb4A00
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology90 — Cystine Knot Cytokines, subunit B
Homologous superfamily homologous superfamily10 — Cystine-knot cytokines
Domain ID domain_id3qb4B00
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology60 — CD59
Homologous superfamily homologous superfamily10 — CD59
Domain ID domain_id3qb4C00
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology90 — Cystine Knot Cytokines, subunit B
Homologous superfamily homologous superfamily10 — Cystine-knot cytokines
Domain ID domain_id3qb4D00
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology60 — CD59
Homologous superfamily homologous superfamily10 — CD59

8. Citations (1)

9. Files and Curves (10)