PDBe 3iqv

X-ray diffraction
1.2Å resolution

Crystal Structure of human 14-3-3 sigma in Complex with Raf1 peptide (6mer) and stabilisator Fusicoccin


Function and Biology Details

Reaction catalysed:
ATP + a protein = ADP + a phosphoprotein

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
14-3-3 protein sigma Chain: A
Molecule details ›
Chain: A
Length: 236 amino acids
Theoretical weight: 26.56 KDa
Source organism: Homo sapiens
  • Canonical: P31947 (Residues: 1-231; Coverage: 93%)
Gene names: HME1, SFN
Sequence domains: 14-3-3 protein
Structure domains: 14-3-3 domain
RAF proto-oncogene serine/threonine-protein kinase Chain: P
Molecule details ›
Chain: P
Length: 6 amino acids
Theoretical weight: 760 Da
Source organism: Homo sapiens
Expression system: Not provided
  • Canonical: P04049 (Residues: 255-260; Coverage: 1%)
Gene names: RAF, RAF1

Ligands and Environments

3 bound ligands:

2 modified residues:

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: C2221
Unit cell:
a: 82.37Å b: 111.75Å c: 62.49Å
α: 90° β: 90° γ: 90°
R R work R free
0.125 0.123 0.153
Expression system: Not provided