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Shao S, Wang Y, Xie Z, Xu R, Wan X, Wang E, Wang Z, Liu S, Chen C, Yang H. 96-well plate format in conjunction with ultra-high-performance liquid chromatography coupled to orbitrap mass spectrometry for high-throughput screening protein binders from ginseng. J Pharm Biomed Anal 2021; 209:114498. [PMID: 34952293 DOI: 10.1016/j.jpba.2021.114498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 11/02/2021] [Accepted: 11/24/2021] [Indexed: 10/19/2022]
Abstract
Conventional strategies for screening of protein binders cannot be used for complicated samples such as ligand libraries created by combinatorial chemistry or from natural product extracts. In the current study, we developed a novel method in a competitive binding configuration for screening protein binders from complicated samples by a combination of streptavidin-coated 96-well plate format in conjunction with ultra-high-performance liquid chromatography coupled with Orbitrap mass spectrometry (UHPLC-Orbitrap-MS). The concanavalin A (Con A) modified 96-well plate and lysozyme modified 96-well plate (as control) were incubated with oligosaccharide standards respectively, and the compounds with the decreased peak areas in experimental group compared to those in the control group were detected as binders by UHPLC-ESI-MS. The factors such as incubation time, incubation temperature, and buffer, which might affect the binding affinity and reproducibility were optimized. The potential of the approach is examined using the extracts of Radix ginseng cruda and American ginseng. The relative binding degrees (RBDs) of the detected disaccharides were relatively high in the extracts of Radix ginseng cruda, and those of the trisaccharides were similar in the extracts of the two kinds of ginseng. To our knowledge, it's the first time to reveal the differences and analogies in lectin peanut agglutinin (PNA)-binding capabilities of oligosaccharides between the extracts of radix ginseng cruda and American ginseng, indicating the efficiency of the method for analysis of complicated samples.
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Affiliation(s)
- Simeng Shao
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Yihan Wang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Zhaoyang Xie
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Ruiyang Xu
- Jilin Shenshi Biological Technology Co., Ltd., Changchun 130028, China
| | - Xilin Wan
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Enpeng Wang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Zhongxi Wang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Shuying Liu
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Changbao Chen
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China.
| | - Hongmei Yang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China.
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New method of detecting hydrophobic interaction between C-terminal binding domain and biomacromolecules. J Biotechnol 2018; 265:101-108. [DOI: 10.1016/j.jbiotec.2017.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 10/16/2017] [Accepted: 11/17/2017] [Indexed: 01/29/2023]
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