Digestion of plant materials generates phytanate (derived from chlorophyll molecules; Fig. 19-2).

(a) Explain why phytanate cannot be catabolized by β oxidation.
(b) Instead, phytanate is linked to CoA, then a peroxisomal dioxygenase converts phytanoyl-CoA to 2-hydroxyphytanoyl- CoA. Draw the structure of this intermediate.
(c) 2-Hydroxyphytanoyl-CoA lyase generates an aldehyde (pristanal) and formyl-CoA. Draw the structure of pristanal.

Transcribed Image Text:

0o Phytanate