Harvard University, Department of Molecular and Cellular Biology, Faculty of Arts and Sciences, Cambridge, MA 02138, USA.
Bioorg Med Chem Lett. 2010 Oct 15;20(20):6061-3. doi: 10.1016/j.bmcl.2010.08.056. Epub 2010 Aug 17.
Muramyl dipeptide (MDP) is believed to interact with an innate immune receptor, Nod2. To identify the cellular receptor for MDP, we have synthesized biotinylated MDP isomers and tested the ability of these compounds to activate Nod2 in a cell-based assay. We found that the modification of MDP does not perturb its ability to activate Nod2. These tagged versions of MDP will be useful to identify the cellular receptor of the immunostimulatory molecules.
二肽基酰基-L-亮氨酰-L-异亮氨酸(MDP)被认为与先天免疫受体 Nod2 相互作用。为了鉴定 MDP 的细胞受体,我们合成了生物素化的 MDP 异构体,并在基于细胞的测定中测试了这些化合物激活 Nod2 的能力。我们发现 MDP 的修饰不会干扰其激活 Nod2 的能力。这些标记的 MDP 版本将有助于鉴定免疫刺激分子的细胞受体。