2e9w

X-ray diffraction
3.5Å resolution

Crystal structure of the extracellular domain of Kit in complex with stem cell factor (SCF)

Released:

Function and Biology Details

Reaction catalysed:
ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-145431 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Mast/stem cell growth factor receptor Kit Chains: A, B
Molecule details ›
Chains: A, B
Length: 489 amino acids
Theoretical weight: 54.95 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P10721 (Residues: 26-514; Coverage: 51%)
Gene names: KIT, SCFR
Sequence domains: Immunoglobulin domain
Structure domains: Immunoglobulins
Soluble KIT ligand Chains: C, D
Molecule details ›
Chains: C, D
Length: 141 amino acids
Theoretical weight: 16.01 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P21583 (Residues: 26-166; Coverage: 57%)
Gene names: KITLG, MGF, SCF
Sequence domains: Stem cell factor
Structure domains: Growth Hormone; Chain: A;

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: C2
Unit cell:
a: 269.477Å b: 52.072Å c: 189.791Å
α: 90° β: 108° γ: 90°
R-values:
R R work R free
0.245 0.245 0.294
Expression systems:
  • Spodoptera frugiperda
  • Escherichia coli