Positive Samples: A-431, Mouse brain Immunogen sequence: HEQHQVTGID DAFDELQREL KDQLQALQDS EREHTEALQL LKRQLAETKS STKSLRTTIG EAFERLHRLL RERQKAMLEE LEADTARTLT DIEQKVQRYS QQLRKVQEGA QILQERLAET DRHTFLAGVA SLSERLKGKI HETNLTYEDF PTSKYTGPLQ Y. E3 ubiquitin ligas