Role of antizyme in degradation of ornithine decarboxylase in HTC cells

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Abstract
A good correlation was observed between the reciprocal of the half-life of ornithine decarboxylase (ODC) activity in the presence of cycloheximide and the relative amount of ODC-antizyme complex to total ODC (free ODC plus complexed ODC) activity in HTC cells examined at various times after cell dilution or change of medium. Pretreatment of cells with putrescine increased the relative amount of ODC-antizyme complex and decreased the half-life of ODC decay. These results suggested that antizyme plays a key role in ODC degradation.