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Zhao M, Hao B, Li H, Cai M, Xie J, Liu H, Tan M, Zhai L, Yu Q. Peptidyl-Lys metalloendopeptidase (Lys-N) purified from dry fruit of Grifola frondosa demonstrates "mirror"digestion property with lysyl endopeptidase (Lys-C). RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8573. [PMID: 31484223 DOI: 10.1002/rcm.8573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/17/2019] [Accepted: 09/01/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Lys-N, also known as lysine-specific metalloendopeptidase, functions as the "sister" enzyme of lysyl endopeptidase (Lys-C) in proteomic research. Its digestion specificity at the N-terminal lysine residue makes it a very useful tool in proteomics analysis, especially in mass spectrometry (MS)-based de novo sequencing of proteins. METHODS Here we present a complete production process of highly purified Lys-N from dry fruit of Grifola frondosa (maitake mushroom). The purification process includes one step of microfiltration plus one step of UF/DF (ultrafiltration used in tandem with a diafiltration method) recovery and four steps of chromatographic purification. RESULTS The overall yield of the process was approximately 6.7 mg Lys-N protein/kg dry fruit of G. frondosa. The assay data demonstrated that the purified Lys-N exhibited high enzymatic activity and specificity. CONCLUSIONS The novel production process provides for the first time the extraction of Lys-N from dry fruit of G. frondosa. The process is also stable and scalable, and provides an economic way of producing the enzyme in large quantities for MS-based proteomics and other biological studies.
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Affiliation(s)
- Mingzhi Zhao
- Beijing Institute of Transfusion Medicine, 27 Taiping Road, Beijing, 100850, China
- Prosit Sole Biotechnology Co. Ltd, Beijing, 100085, China
| | - Bingbing Hao
- Chemical Proteomics Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Honghao Li
- Sartorius Stedim (Shanghai) Trading Co. Ltd, Shanghai, 201203, China
| | - Man Cai
- Prosit Sole Biotechnology Co. Ltd, Beijing, 100085, China
| | - Jingjing Xie
- Prosit Sole Biotechnology Co. Ltd, Beijing, 100085, China
| | - Hongyu Liu
- Prosit Sole Biotechnology Co. Ltd, Beijing, 100085, China
| | - Minjia Tan
- Chemical Proteomics Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Linhui Zhai
- Chemical Proteomics Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qun Yu
- Beijing Institute of Transfusion Medicine, 27 Taiping Road, Beijing, 100850, China
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Cheng C, Liao CF. Novel Dual Two-Dimensional Liquid Chromatography Online Coupled to Ultraviolet Detector, Fluorescence Detector, Ion-Trap Mass Spectrometer for Short Peptide Amino Acid Sequence Determination with Bottom-Up Strategy. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201700380] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cheanyeh Cheng
- Research Center for Analysis and Identification and Department of Chemistry; Chung Yuan Christian University, Chungli District; Taoyuan City Taiwan 32023 R. O. China
| | - Chien-Fu Liao
- Research Center for Analysis and Identification and Department of Chemistry; Chung Yuan Christian University, Chungli District; Taoyuan City Taiwan 32023 R. O. China
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Zheng C, Wang Q, Ning Y, Fan Y, Feng S, He C, Zhang TC, Shen Z. Isolation of a 2-picolinic acid-assimilating bacterium and its proposed degradation pathway. BIORESOURCE TECHNOLOGY 2017; 245:681-688. [PMID: 28917103 DOI: 10.1016/j.biortech.2017.09.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/03/2017] [Accepted: 09/04/2017] [Indexed: 06/07/2023]
Abstract
Burkholderia sp. ZD1, aerobically utilizes 2-picolinic acid as a source of carbon, nitrogen and energy, was isolated. ZD1 completely degraded 2-picolinic acid when the initial concentrations ranged from 25 to 300mg/L. Specific growth rate (μ) and specific consumption rate (q) increased continually in the concentration range of 25-100mg/L, and then declined. Based on the Haldane model and Andrew's model, μmax and qmax were calculated as 3.9 and 16.5h-1, respectively. Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) was used to determine the main intermediates in the degradation pathway. Moreover, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was innovatively used to deduce the ring cleavage mechanism of N-heterocycle of 2-picolinic acid. To our knowledge, this is the first report on not only the utilization of 2-picolinic acid by a Burkholderia sp., but also applying FT-ICR-MS and ATR-FTIR for exploring the biodegradation pathway of organic compounds.
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Affiliation(s)
- Chunli Zheng
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China
| | - Qiaorui Wang
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China
| | - Yanli Ning
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, PR China
| | - Yurui Fan
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China
| | - Shanshan Feng
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China
| | - Chi He
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China; School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK.
| | - Tian C Zhang
- 205D, PKI, Civil Engineering Department, University of Nebraska-Lincoln at Omaha campus, Omaha, NE 68182-0178, USA
| | - Zhenxing Shen
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China
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