... after the formation of IV but prior to the formation of IMV [6,8,9]. Despite the potential impor-tance of this enzyme, relatively little is known about the biochemistry of the cleavage reaction ... were seen along with largenumbers of defective IV. Many of the particles had asym-metrical condensation of the viroplasm, with the mem-brane sometimes collapsing on the empty side. Othersformed ... [8], infected at a multiplicity of infec-tion (MOI) of 2, and incubated at the non-permissivetemperature of 41C. pI7L contains the I7L ORF under the control of its native promoter and has been...