Figure 2
From: Molecular architecture of the fruit fly's airway epithelial immune system
Pattern recognition receptors of the airway immune system. To identify the genes coding for pattern recognition receptors in airway epithelial cells, we performed RT-PCR experiments with RNA derived from thoroughly isolated epithelial cells. Regarding the Toll-receptors, only 4 out of 9 are expressed in these cells (A, D). All except 2 peptidoglycan recognition proteins (PGRPs) are present in the airways (B, D). From the gram-negative binding proteins, GNBP1 and 3 are present (C, D). Positive controls were performed with fatbody and blood cell derived RNA, negative control without template.