Table 1.

Main parameters used for simulations.

parameter	symbol	value	unit
rate constant for catalysis of CO2 fixation by nucleotides	$K_C^N$	103	mol−1 dm3
rate constant for catalysis of nucleotide production by E	$K_N^E$	2	mol−3 dm9 s−1
rate constant for catalysis of nucleotide production by nucleotide cofactors	$K_N^N$	2	mol−1 dm3
saturating constant for catalysis of nucleotide production by nucleotides	$K_i^N$	1	cm−1 s−1
proportion of C2 molecules used to produce fatty acids	${\lambda }_{FA}^C$	0.376	unitless
proportion of C2 molecules used to produce amino acids	${\lambda }_{AA}^C$	0.564 (0.282 into each type of amino acid)	unitless
proportion of C2 molecules used to produce the energy currency (E)	${\lambda }_E^C$	0.01	unitless
proportion of C2 molecules used to produce sugars	${\lambda }_S^C$	0.05	unitless