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Mechanisms determining phenotypic heterogeneity of hepatocytes

The tripeptide is rapidly degraded by serum peptidases, with an estimated plasma half-life measured in minutes

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Minor differences in the appearance of the lyophilized peptide (particularly color) between production lots are normal and generally reflect variations in copper content and freeze-drying conditions rather than differences in peptide identity or analytical purity

In addition, caspase 8 can cleave Bid (Bcl-2 interacting domain), a pro-apoptotic factor that, once cleaved, activates the intrinsic pathway of apoptosis by interaction with pro-apoptotic factors Bak and Bax