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Crystal structure of U5-15kD in a complex with PQBP1

X-ray diffraction
2.1Å resolution
PDB entry 4bwq coloured by chain, front view.
PDB entry 4bwq coloured by chain, side view.
PDB entry 4bwq coloured by chain, top view.
Source organism: Homo sapiens
Assembly composition:
hetero dimer (preferred)
Entry contents: 2 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Thioredoxin-like protein 4A and Polyglutamine-binding protein 1
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Multimeric state: hetero dimer
Accessible surface area: 8693.65 Å2
Buried surface area: 1404.24 Å2
Dissociation area: 702.12 Å2
Dissociation energy (ΔGdiss): 4.14 kcal/mol
Dissociation entropy (TΔSdiss): 9.39 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-130095
Assembly 2
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Assembly Name: Thioredoxin-like protein 4A and Polyglutamine-binding protein 1
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Multimeric state: hetero dimer
Accessible surface area: 8847.15 Å2
Buried surface area: 1378.53 Å2
Dissociation area: 689.26 Å2
Dissociation energy (ΔGdiss): 3.89 kcal/mol
Dissociation entropy (TΔSdiss): 9.49 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-130095
Assembly 3
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Assembly Name: Thioredoxin-like protein 4A and Polyglutamine-binding protein 1
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Multimeric state: hetero dimer
Accessible surface area: 8744.02 Å2
Buried surface area: 1401.71 Å2
Dissociation area: 700.86 Å2
Dissociation energy (ΔGdiss): 3.31 kcal/mol
Dissociation entropy (TΔSdiss): 9.48 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-130095
Assembly 4
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Assembly Name: Thioredoxin-like protein 4A and Polyglutamine-binding protein 1
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Multimeric state: hetero dimer
Accessible surface area: 8302.27 Å2
Buried surface area: 1360.6 Å2
Dissociation area: 680.3 Å2
Dissociation energy (ΔGdiss): 2.67 kcal/mol
Dissociation entropy (TΔSdiss): 9.21 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-130095

Macromolecules

Thioredoxin-like protein 4A
Chains: A, C, E, G
Length: 142 amino acids
Theoretical weight: 16.74 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P83876 (Residues: 4-137; Coverage: 94%)
Gene names: DIM1, TXNL4, TXNL4A
Pfam: Mitosis protein DIM1
InterPro:
CATH: Glutaredoxin
Thioredoxin-like protein 4A in PDB entry 4bwq, assembly 1, front view.
Thioredoxin-like protein 4A in PDB entry 4bwq, assembly 1, side view.
Thioredoxin-like protein 4A in PDB entry 4bwq, assembly 1, top view.
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Polyglutamine-binding protein 1
Chains: B, D, F, H
Length: 43 amino acids
Theoretical weight: 4.61 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O60828 (Residues: 223-265; Coverage: 16%)
Gene names: JM26, NPW38, PQBP1
Polyglutamine-binding protein 1 in PDB entry 4bwq, assembly 1, front view.
Polyglutamine-binding protein 1 in PDB entry 4bwq, assembly 1, side view.
Polyglutamine-binding protein 1 in PDB entry 4bwq, assembly 1, top view.
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