Immunogen sequence: LATWNFQFLP QVNGHPDPFD EIILFSLPPA LDWDSVHVPG PHAMTIQELV DYVNARQKQG IYEEYEDIRR ENPVGTFHCS MSPGNL. MEG2 is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cel