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Crystal Structure of CobT complexed with N1-(5'-phosphoribosyl)-benzimidazole and nicotinate

X-ray diffraction
2Å resolution
PDB entry 1l5k coloured by chain, front view.
PDB entry 1l5k coloured by chain, side view.
PDB entry 1l5k coloured by chain, top view.
Source organism: Salmonella enterica
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: Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase
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Multimeric state: homo dimer
Accessible surface area: 20702.22 Å2
Buried surface area: 6243.77 Å2
Dissociation area: 2,134.58 Å2
Dissociation energy (ΔGdiss): 29.88 kcal/mol
Dissociation entropy (TΔSdiss): 13.9 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-170230

Macromolecules

Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase
Chain: A
Length: 356 amino acids
Theoretical weight: 36.68 KDa
Source organism: Salmonella enterica
Expression system: Salmonella enterica
UniProt:
  • Canonical: Q05603 (Residues: 1-356; Coverage: 100%)
Gene names: STM2016, cobT
Pfam: Phosphoribosyltransferase
InterPro:
CATH:
SCOP: Nicotinate mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase (CobT)
Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase in PDB entry 1l5k, assembly 1, front view.
Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase in PDB entry 1l5k, assembly 1, side view.
Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase in PDB entry 1l5k, assembly 1, top view.
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