Immunogen sequence: DDYKGDKVYH PETGRKNEKE KVGRKGKHLL TVDQKRGEHV VCGSTRNNES ESTLDLEGFQ NPTAKECEGL ATLDNKADLD GESTEGTEEL EDSLNHFTHS VQGQ Highest antigen sequence identity to the following orthologs: Mouse - 38%, Rat - 37%. Uridylyltransferase that mediates