Proposed Model for the Replication of Parvovirus LuIII. A model for the replication of the (+) and the (-) strand of LuIII is shown. The NS1 nick site and its complementary sequence (*) are indicated. The unpaired sequences present at the left hairpin are shown. The arrows point to NS1 nick sites. A corresponds to the insertion in the NS1 nick site present at the right terminus of LuIII.