为了分析酪氨酸在肽和蛋白质中的翻译后磷酸化和硫酸化的作用,我们最近合成了新的氨基酸p(CH 2 PO 3 H 2)Phe和p(CH 2 SO 3 H)Phe(D,L混合物)作为(O-磷酸)和(O-磺基)酪氨酸的化学和酶促稳定类似物。在这里,我们报告了这些氨基酸及其N-Boc保护的衍生物用于固相肽合成的合成方法的改进。开发了一种使用枯草杆菌蛋白酶嘉士伯酯酶进行酶解的方案,并将其扩展到修饰氨基酸p(CH 2 CO 2 H)-D,L-Phe和p(CH 2CONHOH)-D,L-Phe。通过手性相HPLC测试拆分的氨基酸的光学纯度。给出了这些氨基酸及其N-Boc衍生形式的物理常数,包括其在PTC形式下的表征(苯硫代氨基甲酰基)。
申请人:The Governing Council of the University of Toronto
公开号:EP2673381A2
公开(公告)日:2013-12-18
US9335289B2
申请人:——
公开号:US9335289B2
公开(公告)日:2016-05-10
US9816129B2
申请人:——
公开号:US9816129B2
公开(公告)日:2017-11-14
[EN] BIOPROBES AND METHODS OF USE THEREOF<br/>[FR] BIOSONDES ET PROCÉDÉS D'UTILISATION DE CELLES-CI
申请人:UNIV TORONTO
公开号:WO2012109157A2
公开(公告)日:2012-08-16
Disclosed are biomolecule based bioprobes that exhibit improved water solubility and mono layer-forming properties with substantially little or no aggregation that can appreciably interfere with binding of the bioprobes to a target nucleotide. The bioprobes may be used in conjunction with a suitable reporter system to detect very small quantities of biological markers. The bio-probes comprise a nucleobase sequence capable of hybridizing to a target nucleotide; and at least one charged functional group attached to said nucleobase sequence. Also disclosed are biosensors, and sensing devices that comprise the bio-probe. Further disclosed are suitable electrochemical reporter systems for use with the bioprobes. Methods of use of these devices and probes, including for the detection of target biomarkers, including biomarkers for cancer cells or pathogens, are also included.