Table 2

Estimated flux ratios from GC-MS measurements of B. subtilis.

flux ratios

our fw (UL)

our fw (1CL)

FiatFlux (UL)

FiatFlux (1CL)


PYR from MAL : PYR from PEP

0.01 : 0.99

0.04 : 0.96

OAA from TCA-cycle : OAA from PYR

0.42 : 0.58

0.37 : 0.63

0.41 : 0.59

PEP from OAA : PEP from GA3P

0 : 1

0 : 1

0.04 :0.96

0 : 1

GLY from SER : GLY from C1 + CO2

1 : 0

1 : 0

1 : 0

SER from GLY : SER from GA3P

0.09 : 0.91

0.14 : 0.86


Directly comparable flux ratios computed from the GC-MS data described by the framework presented in this paper (our fw) and by FiatFlux software [30]. UL denotes uniform labelling of external glucose, 1CL external glucose labelled to the first carbon position.

Rantanen et al. BMC Bioinformatics 2008 9:266   doi:10.1186/1471-2105-9-266

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