Figure 4From: Energy metabolism of Heliobacterium modesticaldum during phototrophic and chemotrophic growthRelative gene expression levels during phototrophic versus chemotrophic growth. Only representative genes responsible for carbon metabolism, nitrogen fixation and hydrogen production are shown. Gene name (encoding enzyme): pfkA (6-phosphofructokinase), pykA (pyruvate kinase), acsA (acetyl-CoA synthase), ackA (acetate kinase), ppdK (pyruvate phosphate dikinase), pckA (PEP carboxykinase), fdxR (Fd-NADP+ oxidoreductase, FNR), pshB (RC core polypeptide, PshB), fdx (ferredoxin for FNR), porA (pyruvate:Fd oxidoreductase), bchY (chlorophyll reductase, subunit Y), bchB (protochlorophyllide reductase, subunit B), bchE (anaerobic cyclase), and bchG (bacteriochlorophyll synthase).Back to article page