Immunogen sequence: RLQEEVHLLR QMKEMLAKDL EESQGGKSSE VLSATELRVQ LAQKEQELAR AKEALQAMKA DRKRLKGEKT DLVSQMQQLY ATLE Highest antigen sequence identity to the following orthologs: Mouse - 96%, Rat - 95%. Component of the cornified envelope of keratinocytes. M