Initial Structural Studies of Charged Receptors That Bind to Inorganic Phosphate Anion and to an Anionic Phospholipid Found in Bacterial Membranes
作者:Manjula B. Koralegedara、Hong W. Aw、Dennis H. Burns
DOI:10.1021/jo102383j
日期:2011.3.18
ITC titration studies of a family of bis-ammonium receptors based upon a scaffold of two bis-linked phenol rings show that several of the receptors bind to both dihydrogenphosphate and phosphatidylglycerol anions in a similar binding motif. Thermodynamic properties determined from ITC show that anion binding is entropy driven. Job plots determined from 1H NMR clearly demonstrate that anion−receptor
基于两个双联酚环骨架的双铵受体家族的ITC滴定研究表明,一些受体以相似的结合基序与磷酸二氢根和磷脂酰甘油阴离子结合。由ITC确定的热力学性质表明,阴离子结合是由熵驱动的。从1 H NMR确定的工作图清楚地表明,阴离子-受体结合的化学计量取决于其双胺键的受体长度。