FIG 1.

Schematic diagrams showing per os infectivity (PIF) proteins. (A) A comparison of the relative sizes and locations of transmembrane domains of AC83 and the 8 known PIF proteins, PIF0 to PIF7. For AC110, the previously unreported homologs of AC110 found in the gamma- and deltabaculoviruses Neodiprion abeitis NPV (NEAB70) and Culex nigripalpus NPV (CUNI70) are also shown. (B) Schematic diagrams comparing the relative location of the pif7 ORF and its association with the core gene ac109 in AcMNPV, NeabNPV, and CuniNPV.