Chemoenzymatic Synthesis of New 2,4-<i>syn</i>-Functionalized (<i>S</i>)-Glutamate Analogues and Structure–Activity Relationship Studies at Ionotropic Glutamate Receptors and Excitatory Amino Acid Transporters
作者:Zeinab Assaf、Anja P. Larsen、Raminta Venskutonytė、Liwei Han、Bjarke Abrahamsen、Birgitte Nielsen、Michael Gajhede、Jette S. Kastrup、Anders A. Jensen、Darryl S. Pickering、Karla Frydenvang、Thierry Gefflaut、Lennart Bunch
DOI:10.1021/jm301433m
日期:2013.2.28
nervous system, (S)-glutamate (Glu) is released from the presynaptic neuron where it activates a plethora of pre- and postsynaptic Glu receptors. The fast acting ionotropic Glu receptors (iGluRs) are ligand gated ion channels and are believed to be involved in a vast number of neurological functions such as memory and learning, synaptic plasticity, and motor function. The synthesis of 14 enantiopure
在哺乳动物的中枢神经系统中,(S)-谷氨酸(Glu)从突触前神经元释放,并在其中激活过多的突触前和突触后Glu受体。速效离子型Glu受体(iGluRs)是配体门控离子通道,被认为与大量神经功能有关,例如记忆和学习,突触可塑性和运动功能。14种对映体纯的2,4-顺式-Glu类似物2b – p的合成是通过一种短而有效的化学酶方法来进行的,该方法从容易获得的环己酮3开始。iGluRs和EAAT1–3亚型的药理特性显示类似物2i作为具有低纳摩尔亲和力的选择性GluK1配体。确定了GluA2和GluK3的配体结合域(LBD)中的关键类似物2i的两个X射线晶体结构。在GluA2-LBD复合物中观察到部分结构域关闭,其2i与海藻酸盐诱导的闭合相当。相反,在具有2i的GluK3-LBD复合物中观察到完全结构域关闭,类似于结合有谷氨酸的GluK3-LBD。