The innate immune system comprises several classes of pattern-recognition receptors, including Toll-like receptors (TLRs) and nucleotide binding and oligomerization domain-like receptors (NLRs). TLRs recognize microbes on the cell surface and in endosomes, whereas NLRs sense microbial molecules in the cytosol.
Peptidoglycans isolated from two Fusobacterium species of anaerobic bacteria were analyzed for constituent amino acids. Hydrolysis conditions were varied to optimize the yield of diamino acids from peptidoglycan. The o-phthalaldehyde derivatives of the diamino acid stereoisomers were separated by high-performance
In this chapter, we describe synthetic studies on partial structures of lipopolysaccharide (LPS) and peptidoglycan (PGN), which work as tags for nonself recognition in innate immune system. Our previous studies demonstrated that lipid A is the endotoxic principle of LPS.
Diaminopimelate and lysine.
Patte, J. C.
Amino Acids: Biosynthesis and Genetic Regulation, 3, 213-228 (1983)
Letters in applied microbiology, 30(3), 178-182 (2000-04-04)
A simple and sensitive method for separating and detecting the LL, DD and meso diastereomers of the dibasic amino acid diaminopimelic acid (DAP) in the peptidoglycan of Gram-positive bacteria is described. This method is based on reverse phase HPLC separation
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