Immunogen sequence: VDPSQILEGI NLSKRKELQW PDEGIRLKAG RNSWKDWSPQ EGMEGHVIHR WVPCSRDPGT RSHIDKAVLL VQIDDKYVTV IETGVLELGA EV. This gene encodes an evolutionarily conserved transmembrane protein similar to the pecanex protein in Drosophila. The fly protein i