MR1 and infection: For example, orthologs of mammalian proteins such as lipopolysaccharide-binding protein (LBP), bactericidal permeability-increasing protein (BPI), deleted in malignant brain tumors 1 protein (DMBT) / Glycoprotein 340, membrane associated glycoprotein CD36, MHC class I-related protein 1 (MR1) and orthologs of C. elegans proteins such as probable galaptin LEC-8, DAF-7 and IRG-7 (an infection response protein) were detected in the transcriptome of symbiotic nematodes.