iRsp1095: A genome-scale reconstruction of the Rhodobacter sphaeroides metabolic network

BMC Systems Biology

Table 2 Percent composition of cellular biomass of R. sphaeroides during photoheterotrophic and aerobic growth*

Components	% Composition of biomass (Photo)	% Composition of biomass (Aero)
DNA	1.9	2.8
RNA	5.1	7.1
Protein	53.6	49.3
Lipids^a	17.1	12.8
PHB	10.4	17.6
Bacteriochlorophyll	0.4	0
Carotenoids	0.1	0
Glycogen	1.4	0.4
Lipopolysaccharides^b	3	3
Cell Wall^b	2	2

* Inorganic fraction estimated to be about 5% of biomass [66].
^a Lipid composition of R. sphaeroides consisting of phospholipids and sulfolipids.
^b Estimated from E. coli cell wall and lipopolysaccharides percent contribution.

ISSN: 1752-0509