The Enzyme Database

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Accepted name: cyclo(L-leucyl-L-phenylalanyl) synthase
Reaction: L-leucyl-tRNALeu + L-phenylalanyl-tRNAPhe = tRNALeu + tRNAPhe + cyclo(L-leucyl-L-phenylalanyl)
For diagram of cyclic dipeptide biosynthesis, click here
Glossary: cyclo(L-leucyl-L-phenylalanyl) = (3S,6S)-3-benzyl-6-(2-methylpropyl)piperazine-2,5-dione
Other name(s): AlbC; cFL synthase
Systematic name: L-leucyl-tRNALeu:L-phenylalanyl-tRNAPhe leucyltransferase (cyclizing)
Comments: The reaction proceeds following a ping-pong mechanism forming a covalent intermediate between an active site serine and the L-phenylalanine residue [2]. The protein, found in the bacterium Streptomyces noursei, also forms cyclo(L-phenylalanyl-L-phenylalanyl), cyclo(L-methionyl-L-phenylalanyl), cyclo(L-phenylalanyl-L-tyrosyl) and cyclo(L-methionyl-L-tyrosyl) [1].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Gondry, M., Sauguet, L., Belin, P., Thai, R., Amouroux, R., Tellier, C., Tuphile, K., Jacquet, M., Braud, S., Courcon, M., Masson, C., Dubois, S., Lautru, S., Lecoq, A., Hashimoto, S., Genet, R. and Pernodet, J.L. Cyclodipeptide synthases are a family of tRNA-dependent peptide bond-forming enzymes. Nat. Chem. Biol. 5 (2009) 414–420. [DOI] [PMID: 19430487]
2.  Sauguet, L., Moutiez, M., Li, Y., Belin, P., Seguin, J., Le Du, M.H., Thai, R., Masson, C., Fonvielle, M., Pernodet, J.L., Charbonnier, J.B. and Gondry, M. Cyclodipeptide synthases, a family of class-I aminoacyl-tRNA synthetase-like enzymes involved in non-ribosomal peptide synthesis. Nucleic Acids Res. 39 (2011) 4475–4489. [DOI] [PMID: 21296757]
[EC created 2013]

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