Immunogen sequence: FDLDAPGPGT MPLADWQEPL APPIRRWRSL PGSPEFLHQE ACPFVGREES LSDGPPPRLS SLKYRVKEIP PF. TESK2 or testis-specific kinase 2 is a serine/threonine protein kinase that contains an N-terminal protein kinase domain and belongs to the TESK subgroup