The oxidation of camphor by cytochrome P450-CAM CamC requires the participation of the flavoprotein, putidaredoxin reductase CamA, and the iron-sulfur protein, putidaredoxin CamB, to mediate the transfer of electrons from NADH to P450 for oxygen activation. H(+) + NAD(+) + 2 reduced [2Fe-2S]-[putidaredoxin] = NADH + 2 oxidized [2Fe-2S]-[putidaredoxin] Terpene metabolism; (R)-camphor degradation. Homodimer or monomer. Induced by camphor and repressed by CamR. Belongs to the FAD-dependent oxidoreductase family.