Reaction: (1) ATP + 2-dehydro-3-deoxy-D-gluconate = ADP + 2-dehydro-3-deoxy-6-phospho-D-gluconate
(2) ATP + 2-dehydro-3-deoxy-D-galactonate = ADP + 2-dehydro-3-deoxy-6-phospho-D-galactonate
For diagram of reaction click here.
Other name(s): KDG kinase (ambiguous); KDGK (ambiguous); 2-keto-3-deoxy-D-gluconate kinase (ambiguous)
Systematic name: ATP:2-dehydro-3-deoxy-D-gluconate/2-dehydro-3-deoxy-D-galactonate 6-phosphotransferase
Comments: The enzyme from the archaeon Sulfolobus solfataricus is involved in glucose and galactose catabolism via the branched variant of the Entner-Doudoroff pathway. It phosphorylates 2-dehydro-3-deoxy-D-gluconate and 2-dehydro-3-deoxy-D-galactonate with similar catalytic efficiency. cf. EC 22.214.171.124, 2-dehydro-3-deoxygluconokinase and EC 126.96.36.199, 2-dehydro-3-deoxygalactonokinase.
Links to other databases: BRENDA, EXPASY, GTD, KEGG, CAS registry number:
1. Lamble, H.J., Theodossis, A., Milburn, C.C., Taylor, G.L., Bull, S.D., Hough, D.W. and Danson, M.J. Promiscuity in the part-phosphorylative Entner-Doudoroff pathway of the archaeon Sulfolobus solfataricus. FEBS Lett 579 (2005) 6865-6869. [PMID: 16330030]
2. Potter, J.A., Kerou, M., Lamble, H.J., Bull, S.D., Hough, D.W., Danson, M.J. and Taylor, G.L. The structure of Sulfolobus solfataricus 2-keto-3-deoxygluconate kinase. Acta Crystallogr. D Biol. Crystallogr. 64 (2008) 1283-1287. [PMID: 19018105]
3. Kim, S. and Lee, S.B. Characterization of Sulfolobus solfataricus 2-keto-3-deoxy-D-gluconate kinase in the modified Entner-Doudoroff pathway. Biosci. Biotechnol. Biochem. 70 (2006) 1308-1316. [PMID: 16794308]