Positive Samples: A375, A431, HepG2, TE-1, SGC7901, mouse stomach, mouse liver, rat liver Immunogen sequence: MSTLLENIFA IINLFKQYSK KDKNTDTLSK KELKELLEKE FRQILKNPDD PDMVDVFMDH LDIDHNKKID FTEFLLMVFK LAQAYYESTR KE. Filaggrin is expressed only in well diffe