Fig. 1From: Current status of carbon monoxide dehydrogenases (CODH) and their potential for electrochemical applicationsCurrently known seven natural autotrophic CO2 fixation pathways. The respective carbon fixing enzymes (red) and ATP demand are depicted. Aerobic pathways (mint) include the CBB cycle, 3HP/4 HB cycle and 3HPA bicycle. The WL pathway, rGly pathway, rTCA cycle and DC/HB cycle are anaerobic pathways (orange). (modified after Shi et al. 2020)Back to article page