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Crystal structure of M. jannaschii Lon proteolytic domain

X-ray diffraction
1.9Å resolution
PDB entry 1xhk coloured by chain, front view.
PDB entry 1xhk coloured by chain, side view.
PDB entry 1xhk coloured by chain, top view.
Source organism: Methanocaldococcus jannaschii
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Archaeal Lon protease
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Multimeric state: homo dimer
Accessible surface area: 16389.96 Å2
Buried surface area: 2181.08 Å2
Dissociation area: 663.09 Å2
Dissociation energy (ΔGdiss): -1.41 kcal/mol
Dissociation entropy (TΔSdiss): 12.25 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-176694

Macromolecules

Archaeal Lon protease
Chains: A, B
Length: 187 amino acids
Theoretical weight: 20.1 KDa
Source organism: Methanocaldococcus jannaschii
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q58812 (Residues: 456-640; Coverage: 29%)
Gene name: MJ1417
Pfam: Lon protease (S16) C-terminal proteolytic domain
InterPro:
CATH: Ribosomal Protein S5; domain 2
SCOP: ATP-dependent protease Lon (La), catalytic domain
Archaeal Lon protease in PDB entry 1xhk, assembly 1, front view.
Archaeal Lon protease in PDB entry 1xhk, assembly 1, side view.
Archaeal Lon protease in PDB entry 1xhk, assembly 1, top view.
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