Figure 1
From: Inferring branching pathways in genome-scale metabolic networks
Example atom mappings. Example reaction r: m1 → m2 + m3, two alternative atom mappings Γ1(r) = {(a1, a3), (a2, a4)} (left) and Γ2(r) = {(a1, a4), (a2, a3)} (right) and corresponding atom graphs G({r}) for atom mappings Γ1, Γ2. Atom mappings indicated by shading of atoms. The reaction consumes atoms 
(r) = {a1, a2} and produces atoms 
(r) = {a3, a4}.
