作者:Alexander Titz、Alberto Marra、Brian Cutting、Martin Smieško、George Papandreou、Alessandro Dondoni、Beat Ernst
DOI:10.1002/ejoc.201200744
日期:2012.10
tetrasaccharide sialyl Lewisx (sLex) leads to the recruitment of leukocytes from the vascular system to the site of injury. To facilitate the interaction under the shear stress conditions present in the blood vessel, the conformation of sLex is stabilized via lipophilic inter-residual contacts. sLex and two analogs were synthesized and evaluated for selectin binding, average conformation, and conformational dynamics
选择素在炎症级联反应中起关键作用。与其含有四糖唾液酸化 Lewisx (sLex) 的生理配体的相互作用导致白细胞从血管系统募集到损伤部位。为了促进血管中存在的剪切应力条件下的相互作用,sLex 的构象通过亲脂性残留间接触来稳定。合成了 sLex 和两种类似物,并评估了选择素结合、平均构象和构象动力学。我们可以证明,L-岩藻糖中的甲基最适合通过与 D-半乳糖的 β 面相互作用来稳定 sLex 核心,从而能够在剪切应力条件下与选择素结合。