2b0u

X-ray diffraction
2.8Å resolution

The Structure of the Follistatin:Activin Complex

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-140136 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Inhibin beta A chain Chains: A, B
Molecule details ›
Chains: A, B
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
Follistatin Chains: C, D
Molecule details ›
Chains: C, D
Length: 288 amino acids
Theoretical weight: 31.59 KDa
Source organism: Homo sapiens
Expression system: Cricetulus griseus
UniProt:
  • Canonical: P19883 (Residues: 30-317; Coverage: 91%)
Gene name: FST
Sequence domains:
Structure domains:

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 5ID-B
Spacegroup: P21212
Unit cell:
a: 109.25Å b: 120.82Å c: 70.57Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.301 0.265 0.297
Expression system: Cricetulus griseus