FIGURE 3.
Flow chart of the l-ornithine pathway showing polyamine formation and polyamine oxidation. MDL, MDL-72,527 [N,N′-bis(2,3-butadienyl)-1,4-butanediamine]; ODC, ornithine decarboxylase; OAT, ornithine aminotransferase; SMO, spermine oxidase; APAO, N(1)-acetyl polyamine oxidase; SSAT, spermine spermidine acetyl transferase.