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题名: Detecting Proteins Glycosylation by a Homogeneous Reaction System with Zwitterionic Gold Nanoclusters
作者: Li, Jinan1, 3;  Liu, Jing1, 4;  Liu, Zheyi1, 3;  Tan, Yuan2, 3;  Liu, Xiaoyan2;  Wang, Fangjun1
刊名: ANALYTICAL CHEMISTRY
发表日期: 2017-04-18
DOI: 10.1021/acs.analchem.6b04880
卷: 89, 期:8, 页:4339-4343
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: Homogeneous gold nanoclusters (Au NCs) have been widely utilized in drug dejivery, chemical sensing, bioassays, and biolabeling due to their unique physical and chemical properties. However, little attention has been paid to their application in detecting protein post-translational modifications. Herein, we describe the development of a homogeneous reaction system with water-soluble zwitterionic Au NCs to capture glycopeptides from complex biological samples. The unique characteristics of Au NCs, such as their molecular-like properties, the excellent homogeneity in aqueous solution, the organic solvent responsive precipitation, and the easy preparation in only 4.5 h, contribute to the high efficiency and high throughput for capturing the targeted glycopeptides. Compared with the conventional heterogeneous system with solid-state adsorbents, the number of characterized glycosylation sites was improved by 35%. Finally, an MS detection limit as low as 50 amol was achieved for the standard glycoprotein (IgG), and 1576 glycosylation sites from 713 glycoproteins were identified from only 60 jig of mouse liver protein. Data are available via ProteomeXchange with identifier PXDO05635.
关键词[WOS]: HIGHLY EFFICIENT ENRICHMENT ;  SELECTIVE ENRICHMENT ;  MAGNETIC NANOPARTICLES ;  DIRECTED SYNTHESIS ;  MASS-SPECTROMETRY ;  CRYSTAL-STRUCTURE ;  GLYCOPEPTIDES ;  CLUSTER ;  CELLS ;  SIZE
语种: 英语
WOS记录号: WOS:000399858800003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/151979
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, CAS Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Dalian Med Univ, Coll Pharm, Dalian 116044, Peoples R China

Recommended Citation:
Li, Jinan,Liu, Jing,Liu, Zheyi,et al. Detecting Proteins Glycosylation by a Homogeneous Reaction System with Zwitterionic Gold Nanoclusters[J]. ANALYTICAL CHEMISTRY,2017,89(8):4339-4343.
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