DXP reductoisomerase

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1-deoxy-D-xylulose-5-phosphate reductoisomerase
PDB 1q0q EBI.jpg
crystal structure of DXR in complex with the substrate 1-deoxy-D-xylulose 5-phosphate
Identifiers
Symbol DXP_reductoisom
Pfam PF02670
Pfam clan CL0063
InterPro IPR013512
SCOP 1onn
SUPERFAMILY 1onn

DXP reductoisomerase (1-deoxy-D-xylulose 5-phosphate reductoisomerase or DXR) is an enzyme that interconverts 1-deoxy-D-xylulose 5-phosphate (DXP) and 2-C-methyl-D-erythritol 4-phosphate (MEP).[1]

It is classified under EC 1.1.1.267.

It is part of the nonmevalonate pathway (MEP pathway), and it is inhibited by fosmidomycin.

It is normally abbreviated DXR, but it is sometimes named IspC, as the product of the ispC gene.

This enzyme is responsible for terpenoid biosynthesis in some organisms.[1] In Arabidopsis thaliana 1-deoxy-D-xylulose 5-phosphate reductoisomerase is the first committed enzyme of the non-mevalonate pathway for isoprenoid biosynthesis. The enzyme requires Mn2+, Co2+ or Mg2+ for activity, with Mn2+ being most effective.

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This article incorporates text from the public domain Pfam and InterPro IPR013512

This article incorporates text from the public domain Pfam and InterPro IPR013644