Figure 1.
Phylogenetic tree and classification of 70 members of the OATP/SLCO superfamily of transporters. Human (all capitalized OATP), monkey (maOATP), dog (dOATP), pig (sOATP), rat (rOATP) and mouse (mOATP) proteins are grouped into families (with more than 40% amino acid sequence identity) and subfamilies (with more than 60% amino acid sequence identity).