Structure analysis

Human Hsp27 core domain in complex with C-terminal peptide

X-ray diffraction
2.599Å resolution
Source organism: Homo sapiens
Assemblies composition:
hetero tetramer
hetero dimer (preferred)
Entry contents: 2 distinct polypeptide molecules

Assemblies

Assembly 1
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Multimeric state: hetero tetramer
Accessible surface area: 9913.4 Å2
Buried surface area: 3157.42 Å2
Dissociation area: 743.2 Å2
Dissociation energy (ΔGdiss): -2.01 kcal/mol
Dissociation entropy (TΔSdiss): 10.93 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-138181
Assembly 2 (preferred)
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Multimeric state: hetero dimer
Accessible surface area: 5745.9 Å2
Buried surface area: 825.39 Å2
Dissociation area: 412.69 Å2
Dissociation energy (ΔGdiss): 2.67 kcal/mol
Dissociation entropy (TΔSdiss): 6.18 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-138179
Assembly 3
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Multimeric state: hetero dimer
Accessible surface area: 5653.91 Å2
Buried surface area: 845.62 Å2
Dissociation area: 422.81 Å2
Dissociation energy (ΔGdiss): 3.2 kcal/mol
Dissociation entropy (TΔSdiss): 6.13 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-138179

Macromolecules

Chains: A, C
Length: 93 amino acids
Theoretical weight: 10.35 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P04792 (Residues: 84-176; Coverage: 45%)
Gene names: HSP27, HSP28, HSPB1
Pfam: Hsp20/alpha crystallin family
InterPro:
CATH: Immunoglobulin-like

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Chains: B, D
Length: 8 amino acids
Theoretical weight: 919 Da
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P04792 (Residues: 179-186; Coverage: 4%)
Gene names: HSP27, HSP28, HSPB1

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