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MetaCyc Enzyme: cytosolic fructose-bisphosphate aldolase

Species: Triticum aestivum

Summary:
A cytosolic enzyme with fructose-1,6-bisphosphate aldolase activity was isolated from the leaves of well developed wheat ( Triticum aestivum L. Kolibri) plants [Schnarrenberger86]. This enzyme was separated from its plastidic homolog isolated simultaneously (see chloroplastic fructose-bisphosphate aldolase). In addition to fructose 1,6-bisphosphate, the enzyme was shown to catalyze the aldol cleavage of β-D-fructofuranose 1-phosphate. The cytosolic enzyme represented 14% of the total leaf aldolase activity. Additionally, this cytosol aldolase was shown to have a Km (F1,6P) value 5 times smaller than that of the chloroplast aldolase. However, the Km (F1P) values for either enzymes are relatively similar [Schnarrenberger86].

Locations: cytosol

Gene-Reaction Schematic

Gene-Reaction Schematic


GO Terms:
Cellular Component:
GO:0005829 - cytosol [Schnarrenberger86]

Credits:
Created 17-Jan-2007 by Tissier C, TAIR


Enzymatic reaction of: fructose-1,6-bisphosphate aldolase (cytosolic fructose-bisphosphate aldolase)

Inferred from experiment

EC Number: 4.1.2.13

fructose 1,6-bisphosphate ⇄ glycerone phosphate + D-glyceraldehyde 3-phosphate

The direction shown, i.e. which substrates are on the left and right sides, is in accordance with the direction in which it was curated.

This reaction is reversible.

In Pathways: superpathway of cytosolic glycolysis (plants), pyruvate dehydrogenase and TCA cycle, glycolysis IV (plant cytosol)

Kinetic Parameters:
Substrate Km (μM) Citations
fructose 1,6-bisphosphate 1.1 [Schnarrenberger86]

Enzymatic reaction of: fructose-1-phosphate aldolase (cytosolic fructose-bisphosphate aldolase)

Inferred from experiment

EC Number: 4.1.2.13

β-D-fructofuranose 1-phosphate ⇄ glycerone phosphate + D-glyceraldehyde

The direction shown, i.e. which substrates are on the left and right sides, is in accordance with the Enzyme Commission system.

The reaction is favored in the direction shown.

Kinetic Parameters:
Substrate Km (μM) Citations
β-D-fructofuranose 1-phosphate 1.7 [Schnarrenberger86]

References

Schnarrenberger86: Schnarrenberger C, Kruger I (1986). "Distinction between Cytosol and Chloroplast Fructose-Bisphosphate Aldolases from Pea, Wheat, and Corn Leaves." Plant Physiol 80(2);301-304. PMID: 16664617


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
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