Structure analysis

Unbound form of Tomato Inhibitor-II

X-ray diffraction
2.15Å resolution
Source organism: Solanum lycopersicum
Assemblies composition:
monomeric (preferred)
homo tetramer
Entry contents: 1 distinct polypeptide molecule

Assemblies

Assembly 1 (preferred)
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Multimeric state: monomeric
Accessible surface area: 7300 Å2
Buried surface area: 350 Å2
Dissociation area: 100 Å2
Dissociation energy (ΔGdiss): 12 kcal/mol
Dissociation entropy (TΔSdiss): 1 kcal/mol
Interface energy (ΔGint): -24 kcal/mol
Symmetry number: 1
Assembly 2
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Multimeric state: monomeric

Binding statistics and energies are not available for this assembly
Assembly 3
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Multimeric state: monomeric

Binding statistics and energies are not available for this assembly
Assembly 4
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Multimeric state: monomeric
Accessible surface area: 7000 Å2
Buried surface area: 350 Å2
Dissociation area: 100 Å2
Dissociation energy (ΔGdiss): 12 kcal/mol
Dissociation entropy (TΔSdiss): 1 kcal/mol
Interface energy (ΔGint): -24 kcal/mol
Symmetry number: 1
Assembly 5
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Multimeric state: homo tetramer
Accessible surface area: 23900 Å2
Buried surface area: 6100 Å2
Dissociation area: 450 Å2
Dissociation energy (ΔGdiss): 1 kcal/mol
Dissociation entropy (TΔSdiss): 13 kcal/mol
Interface energy (ΔGint): -146 kcal/mol
Symmetry number: 4
Assembly 6
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Multimeric state: homo tetramer
Accessible surface area: 23600 Å2
Buried surface area: 6400 Å2
Dissociation area: 1,900 Å2
Dissociation energy (ΔGdiss): 22 kcal/mol
Dissociation entropy (TΔSdiss): 24 kcal/mol
Interface energy (ΔGint): -145 kcal/mol
Symmetry number: 1

Macromolecules

Chains: A, B, C, D
Length: 123 amino acids
Theoretical weight: 13.47 KDa
Source organism: Solanum lycopersicum
UniProt:
  • Canonical: P05119 (Residues: 26-148; Coverage: 100%)
Pfam: Potato type II proteinase inhibitor family
InterPro: Proteinase inhibitor I20
CATH: Wheat Germ Agglutinin (Isolectin 2); domain 1
SCOP: Plant proteinase inhibitors

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