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Literature summary extracted from

  • Archer, R.M.; Royer, S.F.; Mahy, W.; Winn, C.L.; Danson, M.J.; Bull, S.D.
    Syntheses of 2-keto-3-deoxy-D-xylonate and 2-keto-3-deoxy-L-arabinonate as stereochemical probes for demonstrating the metabolic promiscuity of Sulfolobus solfataricus towards D-xylose and L-arabinose (2013), Chemistry, 19, 2895-2902.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
4.1.2.55 expressed in Escherichia coli Saccharolobus solfataricus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.1.2.55 9.9
-
2-dehydro-3-deoxy-D-galactonate pH 6.5, 70°C Saccharolobus solfataricus
4.1.2.55 17.6
-
2-dehydro-3-deoxy-L-arabinonate pH 6.5, 50°C Saccharolobus solfataricus
4.1.2.55 25.7
-
2-dehydro-3-deoxy-D-gluconate pH 6.5, 70°C Saccharolobus solfataricus
4.1.2.55 33.3
-
2-dehydro-3-deoxy-D-xylonate pH 6.5, 50°C Saccharolobus solfataricus

Organism

EC Number Organism UniProt Comment Textmining
4.1.2.55 Saccharolobus solfataricus
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
4.1.2.55
-
Saccharolobus solfataricus

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.1.2.55 2-dehydro-3-deoxy-D-galactonate
-
Saccharolobus solfataricus pyruvate + D-glyceraldehyde
-
?
4.1.2.55 2-dehydro-3-deoxy-D-gluconate
-
Saccharolobus solfataricus pyruvate + D-glyceraldehyde
-
?
4.1.2.55 2-dehydro-3-deoxy-D-xylonate
-
Saccharolobus solfataricus pyruvate + glycolaldehyde
-
?
4.1.2.55 2-dehydro-3-deoxy-L-arabinonate
-
Saccharolobus solfataricus pyruvate + glycolaldehyde
-
?

Synonyms

EC Number Synonyms Comment Organism
4.1.2.55 KDG-aldolase
-
Saccharolobus solfataricus

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
4.1.2.55 50
-
assay at, 2-dehydro-3-deoxy-D-xylonate and 2-dehydro-3-deoxy-L-arabinonate are less thermally stable than these C6 analogues (2-dehydro-3-deoxy-D-gluconate and 2-dehydro-3-deoxy-D-galactonate), and so their kinetic assays are carried out at 50°C Saccharolobus solfataricus
4.1.2.55 70
-
assay with 2-dehydro-3-deoxy-D-gluconate or 2-dehydro-3-deoxy-D-galactonate as substrates Saccharolobus solfataricus

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
4.1.2.55 6.8
-
2-dehydro-3-deoxy-D-galactonate pH 6.5, 70°C Saccharolobus solfataricus
4.1.2.55 9.3
-
2-dehydro-3-deoxy-L-arabinonate pH 6.5, 50°C Saccharolobus solfataricus
4.1.2.55 15
-
2-dehydro-3-deoxy-D-xylonate pH 6.5, 50°C Saccharolobus solfataricus
4.1.2.55 28.2
-
2-dehydro-3-deoxy-D-gluconate pH 6.5, 70°C Saccharolobus solfataricus

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
4.1.2.55 6.5
-
assay at Saccharolobus solfataricus

kcat/KM [mM/s]

EC Number kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
4.1.2.55 0.45
-
2-dehydro-3-deoxy-D-xylonate pH 6.5, 50°C Saccharolobus solfataricus
4.1.2.55 0.53
-
2-dehydro-3-deoxy-L-arabinonate pH 6.5, 50°C Saccharolobus solfataricus
4.1.2.55 0.7
-
2-dehydro-3-deoxy-D-galactonate pH 6.5, 70°C Saccharolobus solfataricus
4.1.2.55 1.1
-
2-dehydro-3-deoxy-D-gluconate pH 6.5, 70°C Saccharolobus solfataricus