Immunogen Sequence: KAYEWEKAGR SDRVQMRNDL GKINKVITEH TNYLAPYQFL TAFSQLISRI CHSHDEVFVV LMEIIAKVFL AYPQQAMWMM TAVSKSSYPM RVNRCKEILN K. The protein encoded by this gene is a serine/threonine kinase and DNA damage sensor, activating cell cycle checkpoint sig