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Dodecameric structure of spermidine N-acetyltransferase from Vibrio cholerae

X-ray diffraction
2.882Å resolution
PDB entry 4jly coloured by chain, front view.
PDB entry 4jly coloured by chain, side view.
PDB entry 4jly coloured by chain, top view.
Source organism: Vibrio cholerae O1 biovar El Tor str. N16961
Assembly composition:
homo dodecamer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Spermidine N(1)-acetyltransferase
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Multimeric state: homo dodecamer
Accessible surface area: 84915.64 Å2
Buried surface area: 34168.01 Å2
Dissociation area: 16,043.18 Å2
Dissociation energy (ΔGdiss): 41.55 kcal/mol
Dissociation entropy (TΔSdiss): 147.23 kcal/mol
Symmetry number: 12
PDBe Complex ID: PDB-CPX-191926

Macromolecules

Spermidine N(1)-acetyltransferase
Chains: A, B, C, D, E, F
Length: 176 amino acids
Theoretical weight: 20.98 KDa
Source organism: Vibrio cholerae O1 biovar El Tor str. N16961
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9KL03 (Residues: 1-173; Coverage: 100%)
Gene names: VC_A0947, speG
Pfam: Acetyltransferase (GNAT) family
InterPro:
CATH: Aminopeptidase
Spermidine N(1)-acetyltransferase in PDB entry 4jly, assembly 1, front view.
Spermidine N(1)-acetyltransferase in PDB entry 4jly, assembly 1, side view.
Spermidine N(1)-acetyltransferase in PDB entry 4jly, assembly 1, top view.
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