PDBe 3en4

X-ray diffraction
2.55Å resolution

Targeted polypharmacology: crystal structure of the c-Src kinase domain in complex with PP121, a multitargeted kinase inhibitor


Function and Biology Details

Reaction catalysed:
ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Proto-oncogene tyrosine-protein kinase Src Chains: A, B
Molecule details ›
Chains: A, B
Length: 286 amino acids
Theoretical weight: 32.73 KDa
Source organism: Gallus gallus
Expression system: Escherichia coli
  • Canonical: P00523 (Residues: 251-533; Coverage: 53%)
Gene name: SRC
Sequence domains: Protein tyrosine kinase
Structure domains:

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P1
Unit cell:
a: 42.37Å b: 63.143Å c: 73.938Å
α: 100.63° β: 88.68° γ: 90.4°
R R work R free
0.201 0.198 0.255
Expression system: Escherichia coli