Figure 3.
CO 2 in a section of a global metabolic map (full map provided as Fig. S1). A portion of the KEGG map ‘01100 – metabolic pathways’ with reactions involving CO 2 highlighted, portraying different directionality and reversibility assignments in BRENDA. In black, reactions not in BRENDA or where CO 2 is a product in BRENDA but reversibility is unknown; in blue, reactions where CO 2 is a substrate or it is a product and the reaction is classified as reversible in at least one study; in red, reactions classified as irreversible where CO 2 is a product.