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. 2003 Nov;87(11):1397–1398. doi: 10.1136/bjo.87.11.1397

Figure 1.

Figure 1

Purine synthesis and degradation. MMF blocks the key enzyme IMPDH of the guanosine de novo synthesis. Guanosine is also produced by a salvage pathway from purine degradation. MMF  =  mycophenolate mofetil; IMPDH  =  inosine monophoshate dehydrogenase; HGPRT  =  hypoxanthine phosphoribosyl transferase, MP  =  monophoshate; DP  =  diphosphate (modified from Karlson11).