Skip to main content

Table 2 Flux comparison between EcoCyc–18.0–GEM and iJO1366: ATP maximization objective under aerobic conditions

From: A genome-scale metabolic flux model of Escherichia coli K–12 derived from the EcoCyc database

EcoCyc

 

iJO1366

 

Reaction

Flux

Reaction

Flux

ATP maximization objective

216

ATPM

235

Glucose uptake

10

EX_glc(e)

10

O 2 uptake

60

EX_o2(e)

60

H 2O production

60

EX_h2o(e)

60

CO 2 production

60

EX_co2(e)

60

ATP synthase*

176

ATPS4rpp

195

NADH-DEHYDROG-A-RXN

100

NADH16pp

100

Cytochrome bo oxidase*

60

CYTBO3_4pp

120

PYRNUTRANSHYDROGEN-RXN

20

NADTRHD

20

GAPOXNPHOSPHN-RXN

20

GAPD

20

ISOCITDEH-RXN

20

ICDHyr

20

3PGAREARR-RXN

20

ENO

20

ACONITATEDEHYDR-RXN

20

ACONTa/b

20

PHOSGLYPHOS-RXN

20

PGK

20

CITSYN-RXN

20

CS

20

2OXOGLUTARATEDEH-RXN

20

AKGDH

20

2PGADEHYDRAT-RXN

20

ENO

20

Succinate dehydrogenase*

20

SUCDi

20

MALATE-DEH-RXN

20

MDH

20

FUMHYDR-RXN

20

FUM

20

PYRUVDEH-RXN

20

PDH

20

SUCCOASYN-RXN

20

SUCOAS

20

PGLUCISOM-RXN

10

PGI

10

Glucose PTS uptake*

10

GLCptspp

10

TRIOSEPISOMERIZATION-RXN

10

TPI

10

RXN0-313

10

F6PA

10

2.7.1.121-RXN

10

DHAPT

10

  1. Glucose uptake is set to 10 mmol/gCDW/hr. Other nutrient and secretion fluxes are unbounded. Flux rates are reported as absolute values for clarity. True iJO1366 fluxes for EX_glc(e), EX_o2(e), PGK, PGM, and SUCOAS are negative because of reaction directionality convention. Most EcoCyc reactions are identifed by their EcoCyc frame IDs. The remainder are marked with asterisks, and their frame IDs are as follows: ATP synthase EcoCyc frame ID: TRANS-RXN-249; cytochrome bo oxidase EcoCyc frame ID: RXN0-5268; succinate dehydrogenase EcoCyc frame ID: SUCCINATE-DEHYDROGENASE-UBIQUINONE-RXN; glucose PTS uptake EcoCyc frame ID: TRANS-RXN-157/RXN0-6717/RXN0-6718; fructose 6-phosphate aldolase EcoCyc frame ID: RXN0-313; dihydroxyacetone kinase EcoCyc frame ID: 2.7.1.121-RXN.