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1.5 angstrom X-ray structure of bovine Ca(2+)-S100B

X-ray diffraction
1.5Å resolution
PDB entry 3iqo coloured by chain, front view.
PDB entry 3iqo coloured by chain, side view.
PDB entry 3iqo coloured by chain, top view.
Source organism: Bos taurus
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Protein S100-B
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Multimeric state: homo dimer
Accessible surface area: 9766.54 Å2
Buried surface area: 2954.93 Å2
Dissociation area: 1,304.11 Å2
Dissociation energy (ΔGdiss): 19.49 kcal/mol
Dissociation entropy (TΔSdiss): 11.12 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-135973
Assembly 2
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Assembly Name: Protein S100-B
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Multimeric state: homo dimer
Accessible surface area: 9591.72 Å2
Buried surface area: 2988.92 Å2
Dissociation area: 1,319.51 Å2
Dissociation energy (ΔGdiss): 23.59 kcal/mol
Dissociation entropy (TΔSdiss): 11.13 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-135973

Macromolecules

Protein S100-B
Chains: A, B
Length: 92 amino acids
Theoretical weight: 10.68 KDa
Source organism: Bos taurus
Expression system: Escherichia coli
UniProt:
  • Canonical: P02638 (Residues: 1-92; Coverage: 100%)
Gene name: S100B
Pfam:
InterPro:
CATH: EF-hand
Protein S100-B in PDB entry 3iqo, assembly 1, front view.
Protein S100-B in PDB entry 3iqo, assembly 1, side view.
Protein S100-B in PDB entry 3iqo, assembly 1, top view.
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