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. 2000 May;74(9):4110–4115. doi: 10.1128/jvi.74.9.4110-4115.2000

FIG. 1.

FIG. 1

The kynurenine pathway (a) IDO (EC 1.13.11.17). (b) Kynurenine formylase (EC 3.5.1.9). (c) Kynurenine aminotransferase (EC 2.6.1.7). (d) Kynurenine 3-hydroxylase (EC 1.14.13.9). (e) Kynureninase (EC 3.7.1.3). (f) 3-Hydroxyanthranilic acid oxidase (EC 1.13.11.6). (g) Picolinic acid carboxylase (EC 4.1.1.45). (h) Quinolinic acid phosphoribosyltransferase (EC 2.4.2.19). (i) poly(ADP)polymerase (EC 2.4.2.30). (j) Nicotinamide phosphoribosyltransferase (EC 2.4.2.12). CoA, coenzyme A.