Structure analysis

A new form of catalytically inactive phospholipase A2 with an unusual disulphide bridge Cys 32- Cys 49 reveals recognition for N-acetylglucosmine

X-ray diffraction
2.3Å resolution
Source organism: Naja sagittifera
Assemblies composition:
hetero dimer (preferred)
hetero tetramer
Entry contents: 2 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero dimer
Accessible surface area: 11449.27 Å2
Buried surface area: 2085.52 Å2
Dissociation area: 968.62 Å2
Dissociation energy (ΔGdiss): 15.73 kcal/mol
Dissociation entropy (TΔSdiss): 11.16 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-177134
Assembly 2
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Multimeric state: hetero tetramer
Accessible surface area: 22688.42 Å2
Buried surface area: 4282.66 Å2
Dissociation area: 128.13 Å2
Dissociation energy (ΔGdiss): 21.75 kcal/mol
Dissociation entropy (TΔSdiss): 12.21 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-177135
Assembly 3
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Multimeric state: hetero tetramer
Accessible surface area: 22219.93 Å2
Buried surface area: 4843.94 Å2
Dissociation area: 337.16 Å2
Dissociation energy (ΔGdiss): -13.96 kcal/mol
Dissociation entropy (TΔSdiss): 12.85 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-177135

Macromolecules

Chain: A
Length: 118 amino acids
Theoretical weight: 13.07 KDa
Source organism: Naja sagittifera
UniProt:
  • Canonical: Q5G291 (Residues: 8-125; Coverage: 95%)
Pfam: Phospholipase A2
InterPro:
CATH: Phospholipase A2 domain

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Chain: B
Length: 118 amino acids
Theoretical weight: 12.71 KDa
Source organism: Naja sagittifera
UniProt:
  • Canonical: Q5G290 (Residues: 8-125; Coverage: 95%)
Pfam: Phospholipase A2
InterPro:
CATH: Phospholipase A2 domain

Search similar proteins