Sequence homology: Cow: 86%; Dog: 93%; Guinea Pig: 93%; Horse: 93%; Human: 100%; Mouse: 93%; Pig: 100%; Rabbit: 100%; Rat: 100% Immunogen sequence: MLTGLCQGCG TRQVVFTSDP HKSYLPVQFQ SPDKAETQRG DPSVISVNGT. This gene encodes a type II transmembrane protein