TLR4 and infection: Consistent with these survival analyses, we did not detect an effect of PGRP-LA2A mutation on the expression levels of Diptericin after systemic infection with Ecc15 in larvae and adults, infection with L. monocytogenes or injection of DAP-type peptidoglycan or TCT in adults, nor on levels of Drosomycin (a read-out of the Toll pathway) after systemic infection with the Gram-positive bacterium Micrococcus luteus in adults (Figure 4C–E and Figure S2 D, E).