IUBMB Enzyme Nomenclature


Accepted name: [ribosomal protein S18]-alanine N-acetyltransferase

Reaction: 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]

Other name(s): rimI (gene name)

Systematic name: acetyl-CoA:[S18 protein of 30S ribosome]-L-alanine N-acetyltransferase

Comments: The enzyme, characterized from the bacterium Escherichia coli, is specific for protein S18, a component of the 30S ribosomal subunit. cf. EC, [ribosomal protein S5]-alanine N-acetyltransferase.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number:


1. Isono, K. and Isono, S. Ribosomal protein modification in Escherichia coli. II. Studies of a mutant lacking the N-terminal acetylation of protein S18. Mol. Gen. Genet. 177 (1980) 645-651. [PMID: 6991870]

2. Yoshikawa, A., Isono, S., Sheback, A. and Isono, K. Cloning and nucleotide sequencing of the genes rimI and rimJ which encode enzymes acetylating ribosomal proteins S18 and S5 of Escherichia coli K12. Mol. Gen. Genet. 209 (1987) 481-488. [PMID: 2828880]

[EC created 1990 as EC, part transferred 2018 to EC]

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