Association between ornithine decarboxylase induction and the Ah locus in mice treated with polycyclic aromatic compounds.

Cytochrome P-450 denotes collectively all forms of membranebound hemoprotein associated with NADPH-dependent monooxygenase activities and capable of binding CO when reduced."PI-450" is defined arbitrarilv as that polycyclic aromatic inducible form associated most closely with polycyclic aromatic inducible aryl hydrocarbon hvdroxylase activity."P-448" is defined arbitrarily as that polycyclic aromatic inducible form having a Soret peak shifted maximally to the blue when reduced and combined with CO.