Gene duplication and functional changes in the evolution of EDN and ECP
genes of higher primates. The RNase activities shown are from the
present study, except that of ECP, which was transformed from the
originally reported value to reflect the activity expected under the
present experimental conditions. Antiviral activities relative to that
of human EDN are shown. For antibacterial activity, + and −
indicate activity detected or undetected. MY, million year (7,
22–24, 26, 27, 31, 33).