FIGURE 4.
Currently known ATP-dependent enzymatic reactions in the peroxisomes and transport of ATP, AMP and PP. Intraperoxisomal ATP is required for the ACSVL-mediated activation of fatty acids after their import by the ABCD proteins. Pristanic acid formed during alpha-oxidation is activated inside peroxisomes to the corresponding CoA ester in an ATP-dependent reaction. Finally, the peroxisomal protease LonP2 hydrolyzes ATP. It is unknown which transporter mediates the import of ATP into peroxisomes. The products of ATP hydrolysis – AMP and PP are exported from peroxisomes most probably by PMP34 and PXMP2, respectively.