Immunogen sequence: FQEDPIQMSM IIYSCLKEER KILENAQRFN QAQSGNIQST VMLDKQKELD SKVRNVKDKV MCIEHEIKSL EDLQDEYDFK CKTLQNREHE TNGVAKSDQK QEQLLLKKMY LMLDNKRKEV VHKIIELLNV TELTQNA. STAT1 (signal transducers and activators of transcription 1) is a member of the ST