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Interactions of CYP with some unsaturated PA forms. CYP modifies the chemical structure of some 1,2-unsaturated PAs, leading to the removal of their specific unsaturation between C1 and C2. Abbreviations: CYP, cytochrome P450; PA, pyrrolizidine alkaloid. The figure was taken from the open access report of Schramm et al. [37].
