Immunogen sequence: FKIPIEELED RVFVNCNTSI TWVEGTVGTL LSDITRLDLG KRILDPRGIY RCNGTDIYKD KESTVQVHYR MCQSCVELDP ATVA; Positive Samples: Jurkat; Cellular Location: Membrane, Single-pass type I membrane protein. CD3d is part of the T-cell receptor/CD3 complex