Hydrophobie cluster analysis reveals duplication in the external structure of human α‐interferon receptor and homology with γ‐interferon receptor external domain

Abstract
Evidence is presented, based on sequence comparison according to Hydrophobic Cluster Analysis, of a structural and evolutionary relationship between the human α/β-interferon receptor and the human and mouse γ-interferon receptor. These results predict that the human α/β-interferon receptor extracellular part is organised in two homologous subdomains connected by a proline linker. They also predict that both subdomains present some homologies to the external domain of mouse and human γ interferon receptor