Molecular Recognition of β-O-GlcNAc Glycopeptides by a Lectin-Like Receptor: Binding Modulation by the Underlying Ser or Thr Amino Acids
作者:Francisco Corzana、Alberto Fernández-Tejada、Jesús H. Busto、Gururaj Joshi、Anthony P. Davis、Jesús Jiménez-Barbero、Alberto Avenoza、Jesús M. Peregrina
DOI:10.1002/cbic.201000526
日期:2011.1.3
The binding properties of different carbohydrates and glycopeptides with β‐O‐GlcNAc to a synthetically prepared lectin‐like receptor have been analyzed. A serine‐containing glycopeptide exhibited the highest affinity constant of the glycopeptides, and a threonine derivative showed the lowest one. This low selectivity could have its origin in the difficulty to form both specific hydrogen bonds and hydrophobic
分析了不同碳水化合物和糖肽与β- O- GlcNAc与合成制备的凝集素样受体的结合特性。含丝氨酸的糖肽表现出糖肽的最高亲和常数,而苏氨酸衍生物表现出最低的亲和常数。这种低选择性的原因可能在于难以形成特定的氢键和疏水(CH-π)接触。