Characteristics of immune clusters in the Drosophila melanogaster genome.

1PGRP = Peptidoglycan recognition protein, TEP = Thioester-containing protein, GNBP = Gram negative binding protein, SCR = scavenger receptor, CTL = C-type lectin, GAL = Galectin, FBN = Fibrinogen, CLIP = Clip containing serine protease, Srpn = Serpins, Cact = Cactus, Pel = Pelle, SPZ = Spaetlzle, REL = relish, PPO = Prophenol oxidase, CEC = Cercropins, AMP = antimicrobial peptides, CASP = caspases, IAP = apoptosis inhibitory proteins, PAP = pre-apoptotic proteinsNumbers in brackets give the number of genes entering the analysis.