X-ray diffraction
3.4Å resolution

Human steroidogenic acute regulatory protein


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Steroidogenic acute regulatory protein, mitochondrial Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 221 amino acids
Theoretical weight: 24.71 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P49675 (Residues: 66-284; Coverage: 77%)
Gene names: STAR, STARD1
Sequence domains: START domain
Structure domains: Alpha-D-Glucose-1,6-Bisphosphate; Chain A, domain 4

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: P63
Unit cell:
a: 144.13Å b: 144.13Å c: 101.03Å
α: 90° β: 90° γ: 120°
R R work R free
0.26 0.256 0.287
Expression system: Escherichia coli BL21(DE3)