Immunogen sequence: MEAGVQASCM QERAIQTDFV QYQPDLDTIL EKVTQAQVCG TDPESGDRCP ELDAHPSGPR DPNSAVVVTV GDELEAPEPI TRGPTPQRPG ANPNPGQSVS VVCPMEEEEE AAVAEKEPKS YWSRHY; Positive Samples: Mouse intestine, Rat brain, Rat testis; Cellular Location: Cell junction, Me