Immunogen sequence: PNGVNSVEMM DKERNKDKMP EDVTFSPQDE TQTANHKPEE HPEENTKNSV DEQEETVISY ESTPEVSRGN QTMAVKSLSP SPESSASPVP STQP Highest antigen sequence identity to the following orthologs: Mouse - 48%, Rat - 48%. Histones are basic nuclear proteins that are