S100A11, S100A10, Annexin I, Desmosomal Proteins, Small Proline-rich Proteins, Plasminogen Activator Inhibitor-2, and Involucrin Are Components of the Cornified Envelope of Cultured Human Epidermal Keratinocytes

Abstract excerpt

The cornified envelope (CE) is an insoluble sheath of epsilon-(gamma-glutamyl)lysine cross-linked protein, which is deposited beneath the plasma membrane during keratinocyte terminal differentiation. We have probed the structure of the CE by proteolytic cleavage of purified CE fragments isolated from CEs formed spontaneously in cell culture. CNBr digestion, followed by trypsin and then proteinase K treatment...

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