Structure analysis

X-ray structure of the human mitogen-activated protein kinase kinase 2 (MEK2)in a complex with ligand and MgATP

X-ray diffraction
3.2Å resolution
Source organism: Homo sapiens
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule


Assembly 1 (preferred)
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Multimeric state: homo dimer
Accessible surface area: 28400 Å2
Buried surface area: 5500 Å2
Dissociation area: 750 Å2
Dissociation energy (ΔGdiss): 3 kcal/mol
Dissociation entropy (TΔSdiss): 14 kcal/mol
Interface energy (ΔGint): -31 kcal/mol
Symmetry number: 2


Chains: A, B
Length: 354 amino acids
Theoretical weight: 39.6 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P36507 (Residues: 55-400; Coverage: 87%)
Gene names: MAP2K2, MEK2, MKK2, PRKMK2
Pfam: Protein kinase domain
SCOP: Protein kinases, catalytic subunit

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