IUBMB Enzyme Nomenclature


Accepted name: 23S rRNA pseudouridine1911/1915/1917 synthase

Reaction: 23S rRNA uridine1911/uridine1915/uridine1917 = 23S rRNA pseudouridine1911/pseudouridine1915/pseudouridine1917

For diagram of mechanism click here.

Other name(s): RluD; pseudouridine synthase RluD

Systematic name: 23S rRNA-uridine1911/1915/1917 uracil mutase

Comments: Pseudouridine synthase RluD converts uridines at positions 1911, 1915, and 1917 of 23S rRNA to pseudouridines. These nucleotides are located in the functionally important helix-loop 69 of 23S rRNA [1].

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


1. Leppik, M., Peil, L., Kipper, K., Liiv, A. and Remme, J. Substrate specificity of the pseudouridine synthase RluD in Escherichia coli. FEBS J. 274 (2007) 5759-5766. [PMID: 17937767]

2. Ejby, M., Sorensen, M.A. and Pedersen, S. Pseudouridylation of helix 69 of 23S rRNA is necessary for an effective translation termination. Proc. Natl. Acad. Sci. USA 104 (2007) 19410-19415. [PMID: 18032607]

3. Sivaraman, J., Iannuzzi, P., Cygler, M. and Matte, A. Crystal structure of the RluD pseudouridine synthase catalytic module, an enzyme that modifies 23S rRNA and is essential for normal cell growth of Escherichia coli. J. Mol. Biol. 335 (2004) 87-101. [PMID: 14659742]

4. Wrzesinski, J., Bakin, A., Ofengand, J. and Lane, B.G. Isolation and properties of Escherichia coli 23S-RNA pseudouridine 1911, 1915, 1917 synthase (RluD). IUBMB Life 50 (2000) 33-37. [PMID: 11087118]

[EC created 2011]

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