Immunogen sequence: MASTSTTIRS HSSSRRGFSA NSARLPGVSR SGFSSVSVSR SRGSGGLGGA CGGAGFGSRS LYGLGGSKRI SIGGGSCAIS GGYGSRAGGS YGFGGAGSGF Positive Samples: MCF-7. Keratins 6 and 16 are expressed in keratinocytes, which are undergoing rapid turnover in the suprab