Immunogen sequence: SGSGYGGVSS GSTGGRGSSG SYQSSSSGSR LGGAGSISVS HSGMGSSSGS IQTSGGSGYK SGGGGSTSIR FSQTTSSSQH SSTK Highest antigen sequence identity to the following orthologs: Mouse - 63%, Rat - 57%. Keratins are intermediate filament proteins responsible