Structure analysis

Structure of human insulin

X-ray diffraction
1.7Å resolution
Source organism: Homo sapiens
Assemblies composition:
hetero dimer (preferred)
hetero dodecamer
hetero hexamer
hetero tetramer
Entry contents: 2 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero dimer
Accessible surface area: 3463.88 Å2
Buried surface area: 1920.35 Å2
Dissociation area: 869.83 Å2
Dissociation energy (ΔGdiss): 12.67 kcal/mol
Dissociation entropy (TΔSdiss): 8.14 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-134182
Complex Portal ID: CPX-943
Assembly 2
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Multimeric state: hetero dimer
Accessible surface area: 3719.75 Å2
Buried surface area: 1827.38 Å2
Dissociation area: 839.84 Å2
Dissociation energy (ΔGdiss): 10.48 kcal/mol
Dissociation entropy (TΔSdiss): 8.17 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-134182
Complex Portal ID: CPX-943
Assembly 3
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Multimeric state: hetero dodecamer
Accessible surface area: 11652.58 Å2
Buried surface area: 20762.12 Å2
Dissociation area: 4,629.94 Å2
Dissociation energy (ΔGdiss): 67.37 kcal/mol
Dissociation entropy (TΔSdiss): 12.86 kcal/mol
Symmetry number: 6
PDBe Complex ID: PDB-CPX-134235
Assembly 4
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Multimeric state: hetero dodecamer
Accessible surface area: 18517.79 Å2
Buried surface area: 13896.91 Å2
Dissociation area: 1,047.45 Å2
Dissociation energy (ΔGdiss): 1.5 kcal/mol
Dissociation entropy (TΔSdiss): 11.88 kcal/mol
Symmetry number: 6
PDBe Complex ID: PDB-CPX-134235
Assembly 5
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Multimeric state: hetero hexamer
Accessible surface area: 9968.72 Å2
Buried surface area: 5993.16 Å2
Dissociation area: 285.95 Å2
Dissociation energy (ΔGdiss): 15.23 kcal/mol
Dissociation entropy (TΔSdiss): 21.46 kcal/mol
Symmetry number: 3
PDBe Complex ID: PDB-CPX-134224
Assembly 6
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Multimeric state: hetero hexamer
Accessible surface area: 10633.16 Å2
Buried surface area: 5819.66 Å2
Dissociation area: 287.77 Å2
Dissociation energy (ΔGdiss): 20.12 kcal/mol
Dissociation entropy (TΔSdiss): 21.73 kcal/mol
Symmetry number: 3
PDBe Complex ID: PDB-CPX-134224
Assembly 7
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Multimeric state: hetero tetramer
Accessible surface area: 5514.92 Å2
Buried surface area: 5419.61 Å2
Dissociation area: 877.45 Å2
Dissociation energy (ΔGdiss): 5.16 kcal/mol
Dissociation entropy (TΔSdiss): 9.64 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-134210
Assembly 8
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Multimeric state: hetero tetramer
Accessible surface area: 5848.94 Å2
Buried surface area: 5082.42 Å2
Dissociation area: 670.51 Å2
Dissociation energy (ΔGdiss): 2.35 kcal/mol
Dissociation entropy (TΔSdiss): 9.59 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-134210

Macromolecules

Chains: A, C
Length: 21 amino acids
Theoretical weight: 2.38 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P01308 (Residues: 90-110; Coverage: 24%)
Gene name: INS
InterPro:

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Chains: B, D
Length: 29 amino acids
Theoretical weight: 3.33 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P01308 (Residues: 25-53; Coverage: 34%)
Gene name: INS
Pfam: Insulin/IGF/Relaxin family
InterPro:

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