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Information on EC - 2-dehydro-3-deoxy-phosphogluconate/2-dehydro-3-deoxy-6-phosphogalactonate aldolase

for references in articles please use BRENDA:EC4.1.2.55
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IUBMB Comments
In the archaeon Sulfolobus solfataricus the enzyme is involved in glucose and galactose catabolism via the branched variant of the Entner-Doudoroff pathway. It utilizes 2-dehydro-3-deoxy-6-phosphate-D-gluconate and 2-dehydro-3-deoxy-6-phosphate-D-galactonate with similar catalytic efficiency. In vitro the enzyme can also catalyse the cleavage of the non-phosphorylated forms 2-dehydro-3-deoxy-D-gluconate and 2-dehydro-3-deoxy-D-galactonate with much lower catalytic efficiency. cf. EC, 2-dehydro-3-deoxy-6-phosphogalactonate aldolase, and EC, 2-dehydro-3-deoxy-phosphogluconate aldolase.
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The expected taxonomic range for this enzyme is: Archaea, Eukaryota, Bacteria
2-keto-3-deoxygluconate aldolase, kdg-aldolase, sackdga, kd(p)g-aldolase, more
2-dehydro-3-deoxy-6-phospho-D-gluconate = pyruvate + D-glyceraldehyde 3-phosphate
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2-dehydro-3-deoxy-6-phospho-D-galactonate = pyruvate + D-glyceraldehyde 3-phosphate
show the reaction diagram