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. 2021 Jul 16;8:681907. doi: 10.3389/fmed.2021.681907

Figure 1.

Figure 1

Simplified metabolism of thiopurines. XO, xanthine oxidase; TPMT, thiopurine methyltransferase; HPRT, hypoxanthine-guanine phosphoribosyltransferase; 5-IMPDH, 5- inosine monophosphate dehydrogenase; TIMP, thiosine monophosphate; TGNs, thioguanine nucleotides; TGMP, thioguanine monophosphate; TGDP, thioguanine diphosphate; TGTP, thioguanine triphosphate.