Design and synthesis of thiamine analogues to study their binding to the ECF transporter for thiamine in bacteria
作者:L. Monjas、L. J. Y. M. Swier、A. R. de Voogd、R. C. Oudshoorn、A. K. H. Hirsch、D. J. Slotboom
DOI:10.1039/c6md00022c
日期:——
we present the design and synthesis of compounds that bind to ThiT, the substrate-binding domain of the ECF transporter for thiamine from Lactococcus lactis. We modified the methyl substituent of the pyrimidine ring of thiamine, in order to evaluate its contribution to the binding affinity. Our results indicate that as long as a hydrophobic substituent is maintained, the high binding affinity is almost
能量耦合因子(ECF)转运蛋白介导细菌中维生素的吸收。鉴于这些ECF转运蛋白不存在于真核细胞中,它们代表了开发新型抗生素的有趣目标。在这里,我们介绍了结合到ThiT的化合物的设计和合成,ThiT是来自乳酸乳球菌的硫胺素的ECF转运蛋白的底物结合域。我们修饰了硫胺嘧啶环的甲基取代基,以评估其对结合亲和力的贡献。我们的结果表明,只要保留疏水取代基,高结合亲和力几乎不变,从而为选择性化合物的设计提供了机会。