Figure.
Filaggrin (FLG) expression and functions in the epidermal skin barrier. FLG is expressed in the granular layer of epidermis. Profilaggrin is dephosphorylated and cleaved by several endoproteases including caspase-14 to generate FLG, and then FLG is degraded into free amino acids (NMF) by caspase-14.
