Draw the amino acid-Schiff base that forms in the breakdown of 3-hydroxykynurenine to yield 3-hydroxyanthranilate in the tryptophan degradation pathway (Fig. 21-23, Reaction 4) and indicate which bond is to be cleaved.
In Figure 21.23

Transcribed Image Text:

Ho HCOO C-CH-C-COO 2-c-coo- N-Formylkynurenine Kynurenine 02+ NADPH H20 +NADP+ H20 C-C00- IH 3-Hydroxykynurenine 5 reactions 7 reactions CH3-C-CH2 0 CO2 CO2 a-Ketoadipate