Activin receptor type-2B
Homo sapiens
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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count | Chain A; UniProt 24–117 | Fragment:LIGAND BINDING domain | anti-human ActRIIB mAb BYM338 heavy-chain × 1 anti-human ActRIIB mAb BYM338 light-chain × 1 PG4 TETRAETHYLENE GLYCOL × 1 | X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 5.4;293 K;0.1M PHOSPHATE-CITRATE, 40% PEG 300 | Resolution 2.00 Å R-free 0.198 |
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.
| Other PDB | Difference from Current Entry 5NGV | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 2QLU Crystal structure of Activin receptor type II kinase domain from human Deposited 2007-07-13 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
190–487(298 aa)
Fragment:Protein kinase domain
|
Not recorded | SO4 SULFATE ION × 2 ADE ADENINE × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 8;295 K;45mM MES, 90mM ammonium sulfate, 11% polyethylene glycol monomethyl ether 5000, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K
|
Resolution 2.00 Å R-free 0.283 |
| 4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 6 PDB declaration: hexameric |
Chain E
19–134(116 aa)
Fragment:Extracellular domain
Chain F
19–134(116 aa)
Fragment:Extracellular domain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293 K;20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
|
Resolution 3.36 Å R-free 0.261 |
| 4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 6 PDB declaration: hexameric |
Chain K
19–134(116 aa)
Fragment:Extracellular domain
Chain L
19–134(116 aa)
Fragment:Extracellular domain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293 K;20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
|
Resolution 3.36 Å R-free 0.261 |
| 4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 3 Protein heterocomplex Heteromer;Protein × 6 PDB declaration: hexameric |
Chain Q
19–134(116 aa)
Fragment:Extracellular domain
Chain R
19–134(116 aa)
Fragment:Extracellular domain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293 K;20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
|
Resolution 3.36 Å R-free 0.261 |
| 4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 4 Protein heterocomplex Heteromer;Protein × 6 PDB declaration: hexameric |
Chain W
19–134(116 aa)
Fragment:Extracellular domain
Chain X
19–134(116 aa)
Fragment:Extracellular domain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293 K;20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
|
Resolution 3.36 Å R-free 0.261 |
| 4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 5 Protein heterocomplex Heteromer;Protein × 6 PDB declaration: hexameric |
Chain e
19–134(116 aa)
Fragment:Extracellular domain
Chain f
19–134(116 aa)
Fragment:Extracellular domain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293 K;20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
|
Resolution 3.36 Å R-free 0.261 |
| 4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 6 Protein heterocomplex Heteromer;Protein × 6 PDB declaration: hexameric |
Chain k
19–134(116 aa)
Fragment:Extracellular domain
Chain l
19–134(116 aa)
Fragment:Extracellular domain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 6.5;293 K;20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
|
Resolution 3.36 Å R-free 0.261 |
| 5NHR CRYSTAL STRUCTURE OF THE Activin receptor type-2B LIGAND BINDING DOMAIN IN COMPLEX WITH BIMAGRUMAB FV, CUBIC CRYSTAL FORM Deposited 2017-03-22 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain C
24–117(94 aa)
Fragment:VL, UNP residues 24-117
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 4.6;293 K;1.4M AMMONIUM SULFATE, 0.1M SODIUM CITRATE
|
Resolution 3.35 Å R-free 0.229 |
| 5NHR CRYSTAL STRUCTURE OF THE Activin receptor type-2B LIGAND BINDING DOMAIN IN COMPLEX WITH BIMAGRUMAB FV, CUBIC CRYSTAL FORM Deposited 2017-03-22 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain D
24–117(94 aa)
Fragment:VL, UNP residues 24-117
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;pH 4.6;293 K;1.4M AMMONIUM SULFATE, 0.1M SODIUM CITRATE
|
Resolution 3.35 Å R-free 0.229 |
| 7MRZ Structure of GDF11 bound to fused ActRIIB-ECD and Alk4-ECD with Anti-ActRIIB Fab fragment Deposited 2021-05-10 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Insufficient information Heteromer;Protein × 8 PDB declaration: octameric |
Chain C
19–134(116 aa)
Fragment:Extracellular domains of both proteins in the fused construct
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 SO4 SULFATE ION × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;0.1M HEPES, 0.9M ammonium sulfate, 0.9 M KCl
|
Resolution 3.00 Å R-free 0.327 |
| 7OLY Structure of activin A in complex with an ActRIIB-Alk4 fusion reveal insight into activin receptor interactions Deposited 2021-05-20 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Other combination Heteromer;Protein × 10 PDB declaration: decameric |
Chain C
19–134(116 aa)
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 6.5;293 K;17.7 mg/ml complex in 20 mM HEPES, 200 mM NaCl pH 7.5. 100 + 100 nl sitting drop in a MRC 3-well plate with reservoir 0.1 M Na cacodylate pH 6.5 and 17 % (w/v) PEG 4000).
|
Resolution 3.27 Å R-free 0.269 |
| 9D20 Crystal structure of DLK1 in complex with ACVR2B Deposited 2024-08-08 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain E
25–118(94 aa)
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 EDO 1,2-ETHANEDIOL × 3 SO4 SULFATE ION × 3 FUC alpha-L-fucopyranose × 1 BGC beta-D-glucopyranose × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.6;293 K;2.1 M (NH4)2SO4, 0.1 M HEPES PH 7.6 and 2.5% polyethylene glycol (PEG) 400
|
Resolution 2.67 Å R-free 0.242 |
| 9D20 Crystal structure of DLK1 in complex with ACVR2B Deposited 2024-08-08 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
25–118(94 aa)
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 EDO 1,2-ETHANEDIOL × 1 SO4 SULFATE ION × 2 FUC alpha-L-fucopyranose × 1 BGC beta-D-glucopyranose × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 7.6;293 K;2.1 M (NH4)2SO4, 0.1 M HEPES PH 7.6 and 2.5% polyethylene glycol (PEG) 400
|
Resolution 2.67 Å R-free 0.242 |
| 9N4K CryoEM structure of ALK2-ActRIIB bound to BMP6 Deposited 2025-02-03 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics | Assembly 1 Other combination Heteromer;Protein × 6 PDB declaration: hexameric |
Chain A
19–134(116 aa)
Chain F
19–134(116 aa)
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 6 BMA beta-D-mannopyranose × 2 |
ELECTRON MICROSCOPY
cryo-EM buffer
pH 7.5;50mM Tris-HCL, 100mM NaCl
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.20 Å |
7 other PDB entries and 14 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | AVR2B_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A; PDBConstruct 6–99; UniProt 24–117 |