Animal origins of the severe acute respiratory syndrome coronavirus: insight from ACE2-S-protein interactions.

Department of Microbiology and Molecular Genetics, Harvard Medical School and New England Primate Research Center, Southborough, Massachusetts; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School and Laboratory of Molecular Medicine, Children’s Hospital, Boston, Massachusetts; Department of Biology, Chemistry, Pharmacy, Freie Universität Berlin, Berlin, Germany; and Department of Pediatrics, Harvard Medical School and Perlmutter Laboratory, Children’s Hospital, Boston, Massachusetts