| http://www.w3.org/ns/prov#value | - The uncertainty, however, has been described with respect to Cyclops, a retroelement identified from pea: ???Since genes encoding ENV functions are very heterogeneous at the sequence level and difficult to identify by homology even between retroviruses, the possibility cannot be completely excluded at the present time that the 3??? ORF of Cyclops is, in fact, an env gene and, hence, Cyclops is a r
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