Higher primates have at least three DC-SIGN genes, DC-SIGN, DC-SIGNL1 and DC-SIGNL2, although not all three are present in every species; DC-SIGNL2 has not been detected in humans.
Os primates superiores teñen polo menos tres xenes DC-SIGN, que son DC-SIGN, DC-SIGNL1 e DC-SIGNL2, aínda que non todos eles están presentes en todas as especies; DC-SIGNL2 non foi detectado en humanos.