4twj

X-ray diffraction
1.65Å resolution

The structure of Sir2Af2 bound to a myristoylated histone peptide

Released:

Function and Biology Details

Reaction catalysed:
(1a) [protein]-N(6)-acetyl-L-lysine + NAD(+) = [protein]-N(6)-(1,1-(5-adenosylyl-alpha-D-ribose-1,2-di-O-yl)ethyl)-L-lysine + nicotinamide
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-128212 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
NAD-dependent protein deacylase 2 Chain: A
Molecule details ›
Chain: A
Length: 253 amino acids
Theoretical weight: 28.54 KDa
Source organism: Archaeoglobus fulgidus DSM 4304
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O30124 (Residues: 1-253; Coverage: 100%)
Gene names: AF_0112, Sir2Af2, cobB2
Sequence domains: Sir2 family
Structure domains:
Histone H4 Chain: B
Molecule details ›
Chain: B
Length: 14 amino acids
Theoretical weight: 1.8 KDa
Source organism: Saccharomyces cerevisiae S288C
Expression system: Not provided
UniProt:
  • Canonical: P02309 (Residues: 9-21; Coverage: 13%)
Gene names: HHF1, HHF2, N2752, YBR009C, YBR0122, YNL030W

Ligands and Environments

3 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 23-ID-D
Spacegroup: P21
Unit cell:
a: 38.478Å b: 77.251Å c: 45.904Å
α: 90° β: 110.74° γ: 90°
R-values:
R R work R free
0.181 0.18 0.205
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided