2cnm

X-ray diffraction
2.6Å resolution

RimI - Ribosomal S18 N-alpha-protein acetyltransferase in complex with a bisubstrate inhibitor (Cterm-Arg-Arg-Phe-Tyr-Arg-Ala-N-alpha- acetyl-S-CoA).

Released:

Function and Biology Details

Reaction catalysed:
Acetyl-CoA + an N-terminal L-alanyl-[S18 protein of 30S ribosome] = CoA + an N-terminal N-acetyl-L-alanyl-[S18 protein of 30S ribosome]

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-187219 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
[Ribosomal protein bS18]-alanine N-acetyltransferase Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 160 amino acids
Theoretical weight: 18.33 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8ZJW4 (Residues: 1-148; Coverage: 100%)
Gene names: STM4558, rimI
Sequence domains: Acetyltransferase (GNAT) family
Structure domains: Aminopeptidase
Small ribosomal subunit protein bS18 Chains: D, E, F
Molecule details ›
Chains: D, E, F
Length: 7 amino acids
Theoretical weight: 897 Da
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
Expression system: Not provided
UniProt:
  • Canonical: Q8ZK81 (Residues: 2-7; Coverage: 8%)
Gene names: STM4393, rpsR

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200B
Spacegroup: R32
Unit cell:
a: 133.127Å b: 133.127Å c: 190.986Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.196 0.193 0.257
Expression systems:
  • Escherichia coli
  • Not provided