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Structure of CBASS Cap5 from Pseudomonas syringae as an activated tetramer with the cyclic dinucleotide 3'2'-c-diAMP ligand (1 tetramer in the AU)

X-ray diffraction
2.1Å resolution
PDB entry 8fmf coloured by chain, front view.
PDB entry 8fmf coloured by chain, side view.
PDB entry 8fmf coloured by chain, top view.
Source organism: Pseudomonas syringae
Assembly composition:
homo tetramer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: HNH endonuclease
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Multimeric state: homo tetramer
Accessible surface area: 51979.19 Å2
Buried surface area: 22200.17 Å2
Dissociation area: 2,943.86 Å2
Dissociation energy (ΔGdiss): 14.59 kcal/mol
Dissociation entropy (TΔSdiss): 16.23 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-239537

Macromolecules

HNH endonuclease
Chains: A, B, C, D
Length: 388 amino acids
Theoretical weight: 42.77 KDa
Source organism: Pseudomonas syringae
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A2P0QGK5 (Residues: 10-397; Coverage: 98%)
Pfam:
HNH endonuclease in PDB entry 8fmf, assembly 1, front view.
HNH endonuclease in PDB entry 8fmf, assembly 1, side view.
HNH endonuclease in PDB entry 8fmf, assembly 1, top view.
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