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Crystal structure of the adenylyl cyclase domain of anthrax edema factor (EF) in complex with calmodulin and 2' deoxy, 3' anthraniloyl ATP

X-ray diffraction
3.6Å resolution
PDB entry 1lvc coloured by chain, front view.
PDB entry 1lvc coloured by chain, side view.
PDB entry 1lvc coloured by chain, top view.
Source organisms:
Assembly composition:
hetero dimer (preferred)
Entry contents: 2 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Calmodulin-sensitive adenylate cyclase and Calmodulin-1
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Multimeric state: hetero dimer
Accessible surface area: 30576.18 Å2
Buried surface area: 7067.98 Å2
Dissociation area: 2,759.19 Å2
Dissociation energy (ΔGdiss): 30.63 kcal/mol
Dissociation entropy (TΔSdiss): 13.4 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-143923
Assembly 2
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Assembly Name: Calmodulin-sensitive adenylate cyclase and Calmodulin-1
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Multimeric state: hetero dimer
Accessible surface area: 32772.44 Å2
Buried surface area: 4734.27 Å2
Dissociation area: 2,217.86 Å2
Dissociation energy (ΔGdiss): 24.43 kcal/mol
Dissociation entropy (TΔSdiss): 13.25 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-143923
Assembly 3
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Assembly Name: Calmodulin-sensitive adenylate cyclase and Calmodulin-1
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Multimeric state: hetero dimer
Accessible surface area: 31864.64 Å2
Buried surface area: 7082.54 Å2
Dissociation area: 2,786.37 Å2
Dissociation energy (ΔGdiss): 29.35 kcal/mol
Dissociation entropy (TΔSdiss): 13.43 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-143923

Macromolecules

Calmodulin-sensitive adenylate cyclase
Chains: A, B, C
Length: 510 amino acids
Theoretical weight: 58.81 KDa
Source organism: Bacillus anthracis
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P40136 (Residues: 291-800; Coverage: 67%)
Gene names: BXA0141, GBAA_pXO1_0142, cya, pXO1-122
Pfam:
InterPro:
CATH:
SCOP: Adenylylcyclase toxin (the edema factor)
Calmodulin-sensitive adenylate cyclase in PDB entry 1lvc, assembly 1, front view.
Calmodulin-sensitive adenylate cyclase in PDB entry 1lvc, assembly 1, side view.
Calmodulin-sensitive adenylate cyclase in PDB entry 1lvc, assembly 1, top view.
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Calmodulin-1
Chains: D, E, F
Length: 149 amino acids
Theoretical weight: 16.85 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P0DP23 (Residues: 1-149; Coverage: 100%)
Gene names: CALM, CALM1, CAM, CAM1
Pfam: EF-hand domain pair
InterPro:
CATH: EF-hand
SCOP: Calmodulin-like
Calmodulin-1 in PDB entry 1lvc, assembly 1, front view.
Calmodulin-1 in PDB entry 1lvc, assembly 1, side view.
Calmodulin-1 in PDB entry 1lvc, assembly 1, top view.
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