IUBMB Enzyme Nomenclature


Accepted name: 23S rRNA pseudouridine955/2504/2580 synthase

Reaction: 23S rRNA uridine955/uridine2504/uridine2580 = 23S rRNA pseudouridine955/pseudouridine2504/pseudouridine2580

For diagram of mechanism click here.

Other name(s): RluC; pseudouridine synthase RluC

Systematic name: 23S rRNA-uridine955/2504/2580 uracil mutase

Comments: The enzyme converts uridines at position 955, 2504 and 2580 of 23S rRNA to pseudouridines.

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


1. Jiang, M., Sullivan, S.M., Walker, A.K., Strahler, J.R., Andrews, P.C. and Maddock, J.R. Identification of novel Escherichia coli ribosome-associated proteins using isobaric tags and multidimensional protein identification techniques. J. Bacteriol. 189 (2007) 3434-3444. [PMID: 17337586]

2. Conrad, J., Sun, D., Englund, N. and Ofengand, J. The rluC gene of Escherichia coli codes for a pseudouridine synthase that is solely responsible for synthesis of pseudouridine at positions 955, 2504, and 2580 in 23 S ribosomal RNA. J. Biol. Chem. 273 (1998) 18562-18566. [PMID: 9660827]

3. Corollo, D., Blair-Johnson, M., Conrad, J., Fiedler, T., Sun, D., Wang, L., Ofengand, J. and Fenna, R. Crystallization and characterization of a fragment of pseudouridine synthase RluC from Escherichia coli. Acta Crystallogr. D Biol. Crystallogr. 55 (1999) 302-304. [PMID: 10089432]

4. Toh, S.M. and Mankin, A.S. An indigenous posttranscriptional modification in the ribosomal peptidyl transferase center confers resistance to an array of protein synthesis inhibitors. J. Mol. Biol. 380 (2008) 593-597. [PMID: 18554609]

[EC created 2011]

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