Cytochrome P450 Structure and Function: An Evolutionary Perspective Generation of reactive intermediates by cytochromes P450 The CYP1A subfamily The CYP1B subfamily The CYP2A subfamily The CYP2B subfamily The CYP2C subfamily The CYP2D subfamily The CYP2E subfamily The CYP2F, CYP2G and CYP2J subfamilies The CYP3 family The CYP4 family Receptor-mediated regulation of cytochromes P450 Modulation of cytochrome P450 activity by phytochemicals Cytochromes P450 in cancer therapeutics