A Phosphotyrosine-Imprinted Polymer Receptor for the Recognition of Tyrosine Phosphorylated Peptides
作者:Marco Emgenbroich、Cristiana Borrelli、Sudhirkumar Shinde、Issam Lazraq、Filipe Vilela、Andrew J. Hall、Joakim Oxelbark、Ersilia De Lorenzi、Julien Courtois、Anna Simanova、Jeroen Verhage、Knut Irgum、Kal Karim、Börje Sellergren
DOI:10.1002/chem.200801046
日期:2008.10.29
imprinted polymerreceptor. The binding site incorporates two monourea ligands placed by preorganization around a pTyr dianion template. The tight binding site displayed good binding affinities for the pTyr template, in the range of that observed for corresponding antibodies, and a clear preference for pTyr over phosphoserine (pSer). In further analogy to the antibodies, the imprinted polymer was capable
IMPRINTED POLYMERS WITH AFFINITY FOR PHOSPHORYLATED PEPTIDES AND PROTEINS
申请人:Sellergren Borje
公开号:US20110015373A1
公开(公告)日:2011-01-20
The present invention relates to a method of separating or extracting phosphorylated amino acids, peptides or proteins with a molecularly imprinted polymer and to the preparation of said molecularly imprinted polymer as well as use of a molecularly imprinted polymer for separating or extracting phosphorylated amino acids, peptides or proteins.
counterions, such as Na+ and K+. Here we report on the design of a sialicacid receptor via simultaneousrecognition of both the anion and cation of the target analyte. The polymeric receptor was produced using neutral (thio)urea and crown ether based monomers for simultaneous complexation of sialicacid'scarboxylate group and its countercation. Thiourea and urea based functional monomers were tested
异常唾液酸表达是病理过程的关键指标之一。这种酸性糖在肿瘤细胞中过度表达,是一种有效的生物标志物。开发针对各种唾液酸化靶标的特异性捕获工具是早期癌症诊断的重要一步。然而,合成宿主对唾液酸的识别通常很复杂,因为它们的抗衡离子(例如 Na +和 K + )竞争结合阴离子。在这里,我们报告了唾液酸受体的设计同时识别目标分析物的阴离子和阳离子。聚合受体是使用中性(硫)脲和冠醚基单体生产的,用于同时络合唾液酸的羧酸酯基团及其反阳离子。硫脲和脲基功能单体在溶液中均由1H NMR 滴定和在聚合物基质系统中单独和在冠醚存在下络合唾液酸钠盐的能力。两种正交作用单体的组合导致模板在有机溶剂介质中的亲和力更高。印迹聚合物显示出增强的唾液酸识别,这在很大程度上是由添加大环阳离子主体驱动的。报道了各种抗衡离子和溶剂系统对结合亲和力的影响。K +、Na +和 NH 4 +的结合唾液酸盐的吸收量超过了大容量亲脂性盐的吸收
Crosslinked polymers prepared from functional monomers having imidazolium, pyridinium, aryl-substituted urea or aryl-substituted thiourea groups and uses thereof
申请人:National University of Singapore
公开号:US10005870B2
公开(公告)日:2018-06-26
The invention relates to a polymer obtainable by radical co-polymerization of a first monomer of general formula (I) or (II) or a mixture thereof: wherein A, A′, B, B′ X, Y, Y′ and n are as defined herein; with a second, cross-linking monomer and optionally with one or more further co-monomers; wherein the molar ratio of the first monomer to other monomers is less than or equal to 1:5. The polymers selectively bind to phosphate ester compounds and can be used as a solid phase in a method for isolating compounds comprising a phosphate ester group from a mixture comprising one or more phosphate monoesters and/or phosphate diesters and/or other compounds such as lipids.