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Table 1 Summary of the top 20 reactions based on absolute differences in flux medians at 24 h among the yeast strains, and their corresponding gene associations and metabolic subsystems. Reactions are listed according to absolute median differences starting with the largest

From: Metabolic flux sampling predicts strain-dependent differences related to aroma production among commercial wine yeasts

Genes (Short Name)

Gene

Association

Reaction Names

GSMM Reaction Number

Metabolic Subsystem

ARO9

YHR137W

Tyrosine transaminase

r_2119

Tyrosine metabolism, Biosynthesis of secondary metabolites (Ehrlich pathway)

ALT2

YDR111C

L-Alanine:2-oxoglutarate aminotransferase

r_4226

Alanine metabolism

ACO2

YJL200C

Citrate hydroxymutase

r_4262

Citric Acid Cycle

ADH5 ADH1

YBR145W YOL086C

Alcohol dehydrogenase, (acetaldehyde to ethanol)

r_2115

Glycolysis, Fatty acid degradation, Tyrosine metabolism, Biosynthesis of secondary metabolites (Ehrlich pathway)

GLO2

YDR272W

Hydroxyacylglutathione hydrolase

r_0553

Pyruvate metabolism

GLO1

YML004C

Lactoylglutathione lyase

r_0697

Pyruvate metabolism

HSP31 SNO4 HSP33 HSP32

YDR533C YMR322C YOR391C YPL280W

(R)-lactate hydro-lyase

r_4236

Other carbon metabolism

PGK1

YCR012W

Phosphoglycerate kinase

r_0892

Glycolysis, Carbon metabolism

TDH3 TDH1 TDH2

YGR192C YJL052W YJR009C

Glyceraldehyde-3-phosphate dehydrogenase

r_0486

Glycolysis, Gluconeogenesis, Carbon metabolism, Biosynthesis of secondary metabolites

CDC19 PYK2

YAL038W YOR347C

Pyruvate kinase

r_0962

Pyruvate metabolism, Glycolysis, Purine metabolism, Carbon metabolism,

GPM1

YOR283W YKL152C

Phosphoglycerate mutase

r_0893

Glycine, serine and threonine metabolism, Glycolysis, Carbon metabolism

PDC6 PDC1 PDC5

YGR087C YLR044C YLR134W

Pyruvate decarboxylase

r_0959

Glycolysis, Gluconeogenesis, Biosynthesis of secondary metabolites (Ehrlich pathway)

ADH2

YMR303C

Alcohol dehydrogenase (ethanol to acetaldehyde)

r_0163

Glycolysis, Tyrosine metabolism, Biosynthesis of secondary metabolites (Ehrlich pathway), Fatty acid degradation

GLK1

HXK1

HXK2 EMI2

YLR446W YCL040W YFR053C YGL253W YDR516C

Hexokinase (D-glucose:ATP)

r_0534

Glycolysis, Gluconeogenesis, Fructose and mannose metabolism, Galactose metabolism, Amino sugar and nucleotide sugar metabolism, Carbon metabolism, Biosynthesis of secondary metabolites

AAT2

YLR027C

Aspartate transaminase

r_0216

Alanine, aspartate and glutamate metabolism, Tyrosine metabolism, Cysteine and methionine metabolism

HOM2

YDR158W

Aspartate-semialdehyde dehydrogenase

r_0219

Glycine, serine and threonine metabolism, Cysteine and methionine metabolism

HOM6

YJR139C

Homoserine dehydrogenase (NADH)

r_0546

Glycine, serine and threonine metabolism; Cysteine and methionine metabolism,

Biosynthesis of secondary metabolites

THI3 PDC6

PDC1 PDC5

YDL080C YGR087C YLR044C YLR134W

3-methyl-2-oxopentanoate decarboxylase

r_0064

Glycolysis, Gluconeogenesis, Biosynthesis of secondary metabolites (Ehrlich pathway)

GPD1 GPD2

YDL022W YOL059W

Glycerol-3-phosphate dehydrogenase (NAD)

r_0491

Glycerophospholipid metabolism, Biosynthesis of secondary metabolites

GND1

GND2

YGR256W YHR183W

Phosphogluconate dehydrogenase

r_0889

Glutathione metabolism, Carbon metabolism, Biosynthesis of secondary metabolites