Immunogen sequence: CQENEYWDQWG RCVTCQRCGP GQELSKDCGY GEGGDAYCTA CPPRRYKSSW GHHKCQSCIT CAVINRVQKV NCTATS Highest antigen sequence identity to the following orthologs - mouse 86%, rat 88%. X-linked ectodysplasin-A2 receptor (XEDAR) is a recently isolated