Conformationally Unambiguous Spin Label for Exploring the Binding Site Topology of Multivalent Systems.

Conformationally Unambiguous Spin Label for Exploring the Binding Site Topology of Multivalent Systems.
复制标题

用于探索多价系统的结合位点拓扑的构象明确的自旋标签

DOI:
10.1021/acs.jpclett.8b02243
复制
发表时间:
2018
期刊:
The journal of physical chemistry letters
影响因子:
--
通讯作者:
Valentin Wittmann
Valentin Wittmann
中科院分区:
--
文献类型:
--
作者:
Sabrina Weickert;Torben Seitz;William K. Myers;Christiane R. Timmel;Malte Drescher;Valentin Wittmann

文献摘要

参考文献

相似文献

多价碳水化合物-凝集素相互作用是介导生物过程的关键概念,例如信号传导和粘附。与单价结合的情况相比,多价配体的结合亲和度通常增加了几个数量级。因此,多价配体作为有效抑制剂的设计是一个高度活跃的研究领域,其中关于结合位点拓扑结构的知识至关重要。在这里,我们报告了一种使用单价配体精确测量多价靶蛋白结合位点之间距离的一般策略。我们设计并合成了一价、构象明确自旋标记配体(MUeSLI)。采用脉冲电子顺磁共振波谱法测定了多价模型凝集素小麦胚芽凝集素与glcnac衍生的MUeSLI复合物结合位点之间的距离。该方法是探索含有单价配体的多价体系的有效方法,而且它很容易转移到其他靶蛋白上,允许在没有结构信息的情况下靶向设计多价配体。
Multivalent carbohydrate–lectin interactions are a key concept in biological processes mediating, for example, signaling and adhesion. Binding affinities of multivalent ligands often increase by orders of magnitude compared to a monovalent binding situation. Thus, the design of multivalent ligands as potent inhibitors is a highly active field of research, where knowledge about the binding site topology is crucial. Here, we report a general strategy for precise distance measurements between the binding sites of multivalent target proteins using monovalent ligands. We designed and synthesized Monovalent, conformationally Unambiguously Spin-labeled LIgands (MUeSLI). Distances between the binding sites of the multivalent model lectin wheat germ agglutinin in complex with a GlcNAc-derived MUeSLI were determined using pulsed electron paramagnetic resonance spectroscopy. This approach is an efficient method for exploring multivalent systems with monovalent ligands, and it is readily transferable to other target proteins, allowing the targeted design of multivalent ligands without structural information available.
DOI: 10.1038/27227
发表时间: 1998-10-15
期刊: NATURE
影响因子: 64.8
作者:
Kramer, RH;Karpen, JW
通讯作者: Karpen, JW
DOI: 10.1016/j.jmr.2010.10.005
发表时间: 2011-01-01
影响因子: 2.2
作者:
Koehler, Silvia Domingo;Spitzbarth, Martin;Drescher, Malte
通讯作者: Drescher, Malte
DOI: 10.1002/anie.201003495
发表时间: 2010-01-01
影响因子: 16.6
作者:
Junk, Matthias J. N.;Spiess, Hans Wolfgang;Hinderberger, Dariush
通讯作者: Hinderberger, Dariush
DOI: 10.1002/anie.201609617
发表时间: 2016-12-19
影响因子: 16.6
作者:
Schmidt, Thomas;Walti, Marielle A.;Baber, James L.;Hustedt, Eric J.;Clore, G. Marius
通讯作者: Clore, G. Marius
DOI: 10.1021/acs.jpclett.5b02451
发表时间: 2015-12-17
影响因子: 5.7
作者:
Abdelkader, Elwy H.;Lee, Michael D.;Goldfarb, Daniella
通讯作者: Goldfarb, Daniella