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Trapping of an oxocarbenium ion intermediate in UP crystals

X-ray diffraction
2.3Å resolution
PDB entry 3kvy coloured by chain, front view.
PDB entry 3kvy coloured by chain, side view.
PDB entry 3kvy 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: Uridine phosphorylase
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Multimeric state: homo dimer
Accessible surface area: 21207.36 Å2
Buried surface area: 7996.59 Å2
Dissociation area: 3,002.53 Å2
Dissociation energy (ΔGdiss): 41.24 kcal/mol
Dissociation entropy (TΔSdiss): 14.02 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-107715

Macromolecules

Uridine phosphorylase
Chains: A, B
Length: 309 amino acids
Theoretical weight: 33.92 KDa
Source organism: Bos taurus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: A5PJH9 (Residues: 1-309; Coverage: 100%)
Gene name: UPP1
Pfam: Phosphorylase superfamily
InterPro:
CATH: Nucleoside phosphorylase domain
Uridine phosphorylase in PDB entry 3kvy, assembly 1, front view.
Uridine phosphorylase in PDB entry 3kvy, assembly 1, side view.
Uridine phosphorylase in PDB entry 3kvy, assembly 1, top view.
PDBe-KB: UniProt Coverage View: A5PJH9  
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