1s4y

X-ray diffraction
2.3Å resolution

Crystal structure of the activin/actrIIb extracellular domain

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-140139 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Activin receptor type-2B Chains: A, C
Molecule details ›
Chains: A, C
Length: 98 amino acids
Theoretical weight: 11.57 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P27040 (Residues: 23-120; Coverage: 19%)
Gene name: Acvr2b
Sequence domains: Activin types I and II receptor domain
Structure domains: CD59
Inhibin beta A chain Chains: B, D
Molecule details ›
Chains: B, D
Length: 116 amino acids
Theoretical weight: 12.99 KDa
Source organism: Homo sapiens
Expression system: Cricetulus griseus
UniProt:
  • Canonical: P08476 (Residues: 311-426; Coverage: 29%)
Gene name: INHBA
Sequence domains: Transforming growth factor beta like domain
Structure domains: Cystine-knot cytokines

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.2
Spacegroup: P21212
Unit cell:
a: 86.29Å b: 120.627Å c: 43.55Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.21 0.206 0.286
Expression systems:
  • Escherichia coli
  • Cricetulus griseus