Cat member of the cat family, the felids, which are a rapidly evolving family of mammals that share a common ancestor only 10–15 million years ago and include lions, tigers, cougars and many others. Within this family, domestic cats ("Felis catus") are part of the genus "Felis", which is a group of small cats containing about seven species (depending upon classification scheme). Members of the genus are found worldwide and include the jungle cat ("Felis chaus") of southeast Asia, European wildcat ("F. silvestris silvestris"), African wildcat ("F. s. lybica"), the Chinese mountain cat ("F. bieti"), and the Arabian sand cat ("F.
Cadherin related family member 3 Cadherin related family member 3 Cadherin related family member 3 (CDHR3), also known as CDH28 or its abbreviation CDHR3, is a protein that in humans is encoded by the "CDHR3" gene. The exact physiological role of CDHR3 is not known, but as the CDHR3 protein is expressed in epithelial tissues and has six extracellular cadherin domains plus a short transmembrane segment, it is believed to be related to the function of similar cadherins which function in cell adhesion and cell-to-cell signaling. Two single-cell RNA expression studies furthermore found CDHR3 to be highly selectively expressed in ciliated epithelial cells, compared to