IUBMB Enzyme Nomenclature


Accepted name: 1-deoxy-D-xylulose-5-phosphate synthase

Reaction: pyruvate + D-glyceraldehyde 3-phosphate = 1-deoxy-D-xylulose 5-phosphate + CO2

For diagram click here and mechanism here

Glossary: thiamine diphosphate

Other name(s): 1-deoxy-D-xylulose-5-phosphate pyruvate-lyase (carboxylating); DXP-synthase

Systematic name: pyruvate:D-glyceraldehyde-3-phosphate acetaldehydetransferase (decarboxylating)

Comments: Requires thiamine diphosphate. The enzyme forms part of an alternative nonmevalonate pathway for terpenoid biosynthesis (for diagram, click here).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 202218-79-9


1. Sprenger, G.A., Schörken, U., Weigert, T., Grolle, S., deGraaf, A.A., Taylor, S.V., Begley, T.P., Bringer-Meyer, S. and Sahm, H. Identification of a thiamin-dependent synthase in Escherichia coli required for the formation of the 1-deoxy-D-xylulose 5-phosphate precursor to isoprenoids, thiamin, and pyridoxol. Proc. Natl. Acad. Sci. USA 94 (1997) 12857-12862. [PMID: 9371765]

2. Kuzuyama, T., Takagi, M., Takahashi, S. and Seto, H. Cloning and characterization of 1-deoxy-D-xylulose 5-phosphate synthase from Streptomyces sp. strain CL190, which uses both the mevalonate and nonmevalonate pathways for isopentenyl diphosphate biosynthesis. J. Bacteriol. 182 (2000) 891-897. [PMID: 10648511]

[EC created 2001 as EC transferred 2002 to EC]

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