IUBMB Enzyme Nomenclature


Accepted name: 2-keto-3-deoxy-L-rhamnonate aldolase

Reaction: 2-dehydro-3-deoxy-L-rhamnonate = pyruvate + (S)-lactaldehyde

For diagram of reaction click here or click here

Glossary: 2-dehydro-3-deoxy-L-rhamnonate = 3,6-dideoxy-L-erythro-hex-2-ulosonate

Other name(s): KDR aldolase; 2-dehydro-3-deoxyrhamnonate aldolase; 2-keto-3-deoxy acid sugar aldolase; YfaU; 2-dehydro-3-deoxy-L-rhamnonate (S)-lactaldehyde lyase (pyruvate-forming); 2-dehydro-3-deoxy-L-rhamnonate (R)-lactaldehyde lyase (pyruvate-forming)

Systematic name: 2-dehydro-3-deoxy-L-rhamnonate (S)-lactaldehyde-lyase (pyruvate-forming)

Comments: Requires Mg2+ for activity. The enzyme can also use 2-oxo-3-deoxy-L-mannonate, 2-oxo-3-deoxy-L-lyxonate and 4-hydroxy-2-ketoheptane-1,7-dioate (HKHD) as substrates [2].

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


1. Rakus, J.F., Fedorov, A.A., Fedorov, E.V., Glasner, M.E., Hubbard, B.K., Delli, J.D., Babbitt, P.C., Almo, S.C. and Gerlt, J.A. Evolution of enzymatic activities in the enolase superfamily: L-rhamnonate dehydratase. Biochemistry 47 (2008) 9944-9954. [PMID: 18754693]

2. Rea, D., Hovington, R., Rakus, J.F., Gerlt, J.A., Fulop, V., Bugg, T.D. and Roper, D.I. Crystal structure and functional assignment of YfaU, a metal ion dependent class II aldolase from Escherichia coli K12. Biochemistry 47 (2008) 9955-9965. [PMID: 18754683]

[EC created 2013]

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