1
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Shimada N, Kameyama A, Watanabe M, Sahara T, Matsuzawa T. Identification and characterization of xyloglucan-degradation related α-1,2-l-fucosidase in Aspergillus oryzae. J Biosci Bioeng 2024:S1389-1723(24)00159-2. [PMID: 38871579 DOI: 10.1016/j.jbiosc.2024.05.011] [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: 03/28/2024] [Revised: 05/14/2024] [Accepted: 05/25/2024] [Indexed: 06/15/2024]
Abstract
Xyloglucan in plant cell walls has complex side-chain structures; Aspergillus oryzae produces various enzymes to degrade and assimilate xyloglucan. In this study, we identified and characterized α-1,2-l-fucosidase (AfcA) which is involved in xyloglucan degradation in A. oryzae. AfcA expression was induced in the presence of xyloglucan oligosaccharides. AfcA showed specific activity toward α-(1→2)-linked l-fucopyranosyl residues attached to the side chains of xyloglucan oligosaccharides and milk oligosaccharides, but not toward α-(1→3)-, α-(1→4)-, and α-(1→6)-linked l-fucopyranosyl residues. As fucopyranosyl residues in the side chains of xyloglucan oligosaccharides prevent the degradation of xyloglucan oligosaccharides by isoprimeverose-producing oligoxyloglucan hydrolase and β-galactosidase, the cooperative action of AfcA, isoprimeverose-producing oligoxyloglucan hydrolase, and β-galactosidase play a key role in degrading fucosylated xyloglucan in A. oryzae.
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Affiliation(s)
- Naoki Shimada
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Miki, Kagawa 761-0795, Japan
| | - Akihiko Kameyama
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Masahiro Watanabe
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 3-11-32 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan
| | - Takehiko Sahara
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Tomohiko Matsuzawa
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Miki, Kagawa 761-0795, Japan.
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2
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Sirén H. Research of saccharides and related biocomplexes: A review with recent techniques and applications. J Sep Sci 2024; 47:e2300668. [PMID: 38699940 DOI: 10.1002/jssc.202300668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 02/14/2024] [Accepted: 02/26/2024] [Indexed: 05/05/2024]
Abstract
Saccharides and biocompounds as saccharide (sugar) complexes have various roles and biological functions in living organisms due to modifications via nucleophilic substitution, polymerization, and complex formation reactions. Mostly, mono-, di-, oligo-, and polysaccharides are stabilized to inactive glycosides, which are formed in metabolic pathways. Natural saccharides are important in food and environmental monitoring. Glycosides with various functionalities are significant in clinical and medical research. Saccharides are often studied with the chromatographic methods of hydrophilic interaction liquid chromatography and anion exchange chromatograpy, but also with capillary electrophoresis and mass spectrometry with their on-line coupling systems. Sample preparation is important in the identification of saccharide compounds. The cases discussed here focus on bioscience, clinical, and food applications.
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Affiliation(s)
- Heli Sirén
- Chemicum Building, University of Helsinki, Helsinki, Finland
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3
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Kameyama A. Eliminative Oximation of O-Glycans from Mucins. Methods Mol Biol 2024; 2763:151-158. [PMID: 38347408 DOI: 10.1007/978-1-0716-3670-1_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
The large variety and high concentration of O-glycans are characteristic properties of mucins and play a crucial role in their unique functions. Analyzing the O-glycans of mucins is essential for investigating the functions of mucins. Eliminative oximation is an aqueous reaction that can be used to obtain O-glycan oximes from mucins. Using diazabicyclo undec-7ene (DBU) as a base, an organic superbase that can be removed with an organic solvent during solid-phase extraction, and adding hydroxylamine to the reaction mixture in advance, the O-glycans released from the mucin are immediately converted to the corresponding glycan oximes. The glycan oxime can then be fluorescently labeled with a fluorescent labeling reagent and 2-picoline borane via reductive amination. O-glycans that have been fluorescently labeled can be analyzed using conventional HPLC techniques.
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Affiliation(s)
- Akihiko Kameyama
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan.
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4
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Downs M, Zaia J, Sethi MK. Mass spectrometry methods for analysis of extracellular matrix components in neurological diseases. MASS SPECTROMETRY REVIEWS 2023; 42:1848-1875. [PMID: 35719114 PMCID: PMC9763553 DOI: 10.1002/mas.21792] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/12/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
The brain extracellular matrix (ECM) is a highly glycosylated environment and plays important roles in many processes including cell communication, growth factor binding, and scaffolding. The formation of structures such as perineuronal nets (PNNs) is critical in neuroprotection and neural plasticity, and the formation of molecular networks is dependent in part on glycans. The ECM is also implicated in the neuropathophysiology of disorders such as Alzheimer's disease (AD), Parkinson's disease (PD), and Schizophrenia (SZ). As such, it is of interest to understand both the proteomic and glycomic makeup of healthy and diseased brain ECM. Further, there is a growing need for site-specific glycoproteomic information. Over the past decade, sample preparation, mass spectrometry, and bioinformatic methods have been developed and refined to provide comprehensive information about the glycoproteome. Core ECM molecules including versican, hyaluronan and proteoglycan link proteins, and tenascin are dysregulated in AD, PD, and SZ. Glycomic changes such as differential sialylation, sulfation, and branching are also associated with neurodegeneration. A more thorough understanding of the ECM and its proteomic, glycomic, and glycoproteomic changes in brain diseases may provide pathways to new therapeutic options.
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Affiliation(s)
- Margaret Downs
- Department of Biochemistry, Center for Biomedical Mass Spectrometry, Boston University, Boston, Massachusetts, USA
| | - Joseph Zaia
- Department of Biochemistry, Center for Biomedical Mass Spectrometry, Boston University, Boston, Massachusetts, USA
- Bioinformatics Program, Boston University, Boston, Massachusetts, USA
| | - Manveen K Sethi
- Department of Biochemistry, Center for Biomedical Mass Spectrometry, Boston University, Boston, Massachusetts, USA
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5
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Shimazaki H, Nakamura K, Ono A, Segawa O, Sawakami K, Koizuka M, Hirayama M, Hori K, Tajima H, Kuno A. Auto-Lectin Dotcoding by Two Octopuses: Rapid Analysis of Fluorescence-Labeled Glycoproteins by an 8-channel Fully-Automatic Bead Array Scanner with a Rolling-Circle Detector. Anal Chem 2023; 95:11868-11873. [PMID: 37535807 DOI: 10.1021/acs.analchem.3c01395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Protein glycosylation is a crucial factor that must be evaluated in biological pharmaceuticals. The glycoform profile of a protein can vary depending on the conditions of the cultivation, purification process, and the selection of a host cell. Lectin microarrays are reliable bioanalytical methods used in the early phases of bioprocesses for the detection of glycosylation. The concept of a fully automated glycan detection with a bead array has been previously reported; however, no simple system has been constructed on fluorescence-based detection using a microarray. Here, we present a fully automated detection system equipped with a novel fluorescence detector for a 13-lectin bead array with a single tip. The lattice-like arrangement of a set of fibers proximate to the tip of the light emitting diode and photomultiplier tube detector minimized the noise caused by the reflection of incident light on the plastic capillary tip and bead. A unique rolling-circle fiber unit with quadruple lattices stacked in two layers realizes the 8-parallel automeasurement with a drastic reduction in scanning time and machine size. The 8-glycan profiles obtained automatically within 25 min were identical with those obtained with the conventional lectin microarray after overnight incubation. The signals obtained were represented as lectin dotcodes. Therefore, autolectin dotcoding assisted by the twin 8 legs named as "detection and irradiation octopuses" may be a rapid glyco-evaluation system during the production and development of biopharmaceuticals.
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Affiliation(s)
- Hiroko Shimazaki
- Molecular & Cellular Glycoproteomics Research Group, Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science & Technology, Tsukuba, Ibaraki 305-8565, Japan
| | - Kazuhiro Nakamura
- Precision System Science, Kamihongou, Matsudo, Chiba 271-0064, Japan
| | - Ayaka Ono
- Molecular & Cellular Glycoproteomics Research Group, Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science & Technology, Tsukuba, Ibaraki 305-8565, Japan
| | - Osamu Segawa
- Precision System Science, Kamihongou, Matsudo, Chiba 271-0064, Japan
| | - Kazumi Sawakami
- Precision System Science, Kamihongou, Matsudo, Chiba 271-0064, Japan
| | - Michinori Koizuka
- Precision System Science, Kamihongou, Matsudo, Chiba 271-0064, Japan
| | - Makoto Hirayama
- Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama 1-4-4, Higashi-Hiroshima 739-7528, Japan
| | - Kanji Hori
- Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama 1-4-4, Higashi-Hiroshima 739-7528, Japan
| | - Hideji Tajima
- Precision System Science, Kamihongou, Matsudo, Chiba 271-0064, Japan
| | - Atsushi Kuno
- Molecular & Cellular Glycoproteomics Research Group, Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science & Technology, Tsukuba, Ibaraki 305-8565, Japan
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6
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Hanamatsu H, Makino S, Ohara M, Suda G, Yokota I, Nishihara S, Sakamoto N, Furukawa JI. Simultaneous determination of heparan sulfate, chondroitin/dermatan sulfates, and hyaluronan glycosaminoglycan disaccharides by high-performance liquid chromatography using a reverse-phase column with adamantyl groups. J Chromatogr A 2023; 1689:463748. [PMID: 36586283 DOI: 10.1016/j.chroma.2022.463748] [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: 10/20/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
Glycosaminoglycans (GAGs), which are one of the major components of proteoglycans, play a pivotal role in physiological processes such as signal transduction, cell adhesion, growth, and differentiation. Characterization of GAGs is challenging due to the tremendous structural diversity of heteropolysaccharides with numerous sulfate or carboxyl groups. In this present study, we examined the analysis of 2-aminobenzamide (2-AB) labeled GAG disaccharides by high-performance liquid chromatography (HPLC) using a reverse-phase (RP)-column with adamantyl groups. Under the analytical conditions, 17 types of 2-AB labeled GAG disaccharides derived from heparan sulfate, chondroitin/dermatan sulfates, and hyaluronan were sequentially separated in a single analysis. The analysis time was fast with high retention time reproducibility. Moreover, the RP-HPLC column with adamantyl groups allowed the quantification of GAGs in various biological samples, such as serum, cultured cells, and culture medium.
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Affiliation(s)
- Hisatoshi Hanamatsu
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan; Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan.
| | - Satoshi Makino
- Sanyo Fine IRICA Technology Co., Ltd. Kyoto, Kyoto 601-8037, Japan
| | - Masatsugu Ohara
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
| | - Goki Suda
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
| | - Ikuko Yokota
- Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Shoko Nishihara
- Department of Bioinformatics, Graduate School of Engineering, Soka University, Hachioji, Tokyo, Japan; Glycan & Life System Integration Center (GaLSIC), Soka University, Hachioji, Tokyo, Japan
| | - Naoya Sakamoto
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan
| | - Jun-Ichi Furukawa
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido 060-8638, Japan; Institute for Glyco-core Research (iGCORE), Nagoya University, Nagoya, Aichi 464-8601, Japan.
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7
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2017-2018. MASS SPECTROMETRY REVIEWS 2023; 42:227-431. [PMID: 34719822 DOI: 10.1002/mas.21721] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
This review is the tenth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2018. Also included are papers that describe methods appropriate to glycan and glycoprotein analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, new methods, matrices, derivatization, MALDI imaging, fragmentation and the use of arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Most of the applications are presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and highlights the impact that MALDI imaging is having across a range of diciplines. MALDI is still an ideal technique for carbohydrate analysis and advancements in the technique and the range of applications continue steady progress.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford, UK
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8
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Kim J, Kim J, Ryu C, Lee J, Park CS, Jin M, Kang M, Kim A, Mun C, Kim HH. Unidentified N-glycans by N-glycosidase A were Identified by Nglycosidase
F under Denaturing Conditions in Plant Glycoprotein. Protein Pept Lett 2022; 29:440-447. [DOI: 10.2174/0929866529666220328152941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/25/2022] [Accepted: 02/11/2022] [Indexed: 11/22/2022]
Abstract
Background:
The identification of N-glycans in plant glycoproteins or plant-made pharmaceuticals is essential for understanding their structure, function, properties, immunogenicity, and allergenicity (induced by plant-specific core-fucosylation or xylosylation) in the applications of plant food, agriculture, and plant biotechnology. N-glycosidase A is widely used to release the N-glycans of plant glycoproteins because the core-fucosylated N-glycans of plant glycoproteins are hydrolyzed by N-glycosidase A but not by N-glycosidase F. However, the efficiency of N-glycosidase A activity on plant glycoproteins remains unclear.
Objective:
To elucidate the efficient use of N-glycosidases to identify and quantify the N-glycans of plant glycoproteins, the identification of released N-glycans by N-glycosidase F and their relative quantities with a focus on unidentified N-glycans by N-glycosidase A in plant glycoproteins, Phaseolus vulgaris lectin (PHA) and horseradish peroxidase (HRP), were investigated.
Methods:
Liquid chromatography–tandem mass spectrometry was used to analyze and compare the N-glycans of PHA and HRP treated with either N-glycosidase A or F under denaturing conditions. The relative quantities (%) of each N-glycan (>0.1%) to the total N-glycans (100%) were determined.
Results:
N-glycosidase A and F released 9 identical N-glycans of PHA, but 2 additional core-fucosylated N-glycans were released by only N-glycosidase A, as expected. By contrast, in HRP, 8 N-glycans comprising 6 core-fucosylated N-glycans, 1 xylosylated N-glycan, and 1 mannosylated N-glycan were released by N-glycosidase A. Moreover, 8 unexpected N-glycans comprising 1 core-fucosylated N-glycan, 4 xylosylated N-glycans, and 3 mannosylated N-glycans were released by N-glycosidase F. Of these, 3 xylosylated and 2 mannosylated N-glycans were released by only N-glycansodase F.
Conclusion:
These results demonstrated that N-glycosidase A alone is insufficient to release the N-glycans of all plant glycoproteins, suggesting that to identify and quantify the released N-glycans of the plant glycoprotein HRP, both N-glycosidase A and F treatments are required.
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Affiliation(s)
- Jeongeun Kim
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Jihye Kim
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Changsoo Ryu
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
| | - Jaeryong Lee
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Chi Soo Park
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Mijung Jin
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Minju Kang
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Ahyeon Kim
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Chulmin Mun
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Ha Hyung Kim
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjakgu,
Seoul 06974, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang
University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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9
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Kajiura H, Hiwasa-Tanase K, Ezura H, Fujiyama K. Effect of fruit maturation on N-glycosylation of plant-derived native and recombinant miraculin. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 178:70-79. [PMID: 35276597 DOI: 10.1016/j.plaphy.2022.02.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/26/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
Miracle fruit, Synsepalum dulcificum, produces a unique taste-modifying protein, miraculin (MIR), which has an attractive potential for commercial application as a novel low-calorie sweetener. To establish a stable supply system for MIR, a previous study established a platform for recombinant MIR (rMIR) production in tomato plants and demonstrated that native miraculin from miracle fruit (nMIR) and rMIR were almost identical in their protein modifications with N-glycan. However, neither N-glycosylation nor the influence of fruit maturation on the structural changes of N-glycan have been fully characterized in detail. Here, with a focus on N-glycosylation and the contribution of fruit maturation to N-glycan, we reanalyzed the N-glycosylation of the natural maturation stages of nMIR and rMIR, and then compared the N-glycan structures on MIRs prepared from the fruit at two different maturation stages. The detailed peptide mapping and N-glycosylation analysis of MIRs provided evidence that MIRs have variants, which were derived mainly from the differences in the N-glycan structure in nMIR and the N-glycosylation in rMIR and not from the cleavage of the peptide backbone. N-Glycan analysis of MIRs from the maturation stage of fruits demonstrated that N-glycan structures were similar among nMIRs and rMIRs at every maturation stage. These results indicated that the heterogeneously expressed rMIRs had the same characteristics in post-translational modifications, especially N-glycosylation and N-glycan structures, throughout the maturation stages. This study demonstrated the potential of recombinant protein expressed in tomato plants and paves the way for the commercial use of rMIR.
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Affiliation(s)
- Hiroyuki Kajiura
- International Center for Biotechnology, Osaka University, 2-1 Yamada-oka, Suita-shi, Osaka, 565, Japan; Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 2-1 Yamada-oka, Suita-shi, Osaka, 565-0871, Japan.
| | - Kyoko Hiwasa-Tanase
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan; Tsukuba-Plant Innovation Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - Hiroshi Ezura
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan; Tsukuba-Plant Innovation Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kazuhito Fujiyama
- International Center for Biotechnology, Osaka University, 2-1 Yamada-oka, Suita-shi, Osaka, 565, Japan; Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 2-1 Yamada-oka, Suita-shi, Osaka, 565-0871, Japan; Osaka University Cooperative Research Station in Southeast Asia (OU:CRS), Faculty of Science, Mahidol University, Bangkok, Thailand
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10
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de Haan N, Narimatsu Y, Koed Møller Aasted M, Larsen ISB, Marinova IN, Dabelsteen S, Vakhrushev SY, Wandall HH. In-Depth Profiling of O-Glycan Isomers in Human Cells Using C18 Nanoliquid Chromatography-Mass Spectrometry and Glycogenomics. Anal Chem 2022; 94:4343-4351. [PMID: 35245040 PMCID: PMC8928149 DOI: 10.1021/acs.analchem.1c05068] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
![]()
O-Glycosylation is an omnipresent modification
of the human proteome affecting many cellular functions, including
protein cleavage, protein folding, and cellular signaling, interactions,
and trafficking. The functions are governed by differentially regulated O-glycan types and terminal structures. It is therefore
essential to develop analytical methods that facilitate the annotation
of O-glycans in biological material. While various
successful strategies for the in-depth profiling of released O-glycans have been reported, these methods are often limitedly
accessible to the nonspecialist or challenged by the high abundance
of O-glycan structural isomers. Here, we developed
a high-throughput sample preparation approach for the nonreductive
release and characterization of O-glycans from human
cell material. Reducing-end labeling allowed efficient isomer separation
and detection using C18 nanoliquid chromatography coupled to Orbitrap
mass spectrometry. Using the method in combination with a library
of genetically glycoengineered cells displaying defined O-glycan types and structures, we were able to annotate individual O-glycan structural isomers from a complex mixture. Applying
the method in a model system of human keratinocytes, we found a wide
variety of O-glycan structures, including O-fucose, O-glucose, O-GlcNAc, and O-GalNAc glycosylation, with the latter
carrying both elongated core1 and core2 structures and varying numbers
of fucoses and sialic acids. The method, including the now well-characterized
standards, provides the opportunity to study glycomic changes in human
tissue and disease models using rather mainstream analytical equipment.
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Affiliation(s)
- Noortje de Haan
- Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen 2200, Denmark
| | - Yoshiki Narimatsu
- Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen 2200, Denmark
| | | | - Ida S B Larsen
- Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen 2200, Denmark
| | - Irina N Marinova
- Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen 2200, Denmark
| | - Sally Dabelsteen
- Department of Odontology, University of Copenhagen, Copenhagen 2200, Denmark
| | - Sergey Y Vakhrushev
- Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen 2200, Denmark
| | - Hans H Wandall
- Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen 2200, Denmark
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11
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Recent advances and trends in sample preparation and chemical modification for glycan analysis. J Pharm Biomed Anal 2022; 207:114424. [PMID: 34653745 DOI: 10.1016/j.jpba.2021.114424] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 12/26/2022]
Abstract
Growing significance of glycosylation in protein functions has accelerated the development of methodologies for detection, identification, and characterization of protein glycosylation. In the past decade, glycobiology research has been advanced by innovative techniques with further progression in the post-genome era. Although significant technical progress has been made in terms of analytical throughput, comprehensiveness, and sensitivity, most methods for glycosylation analysis still require laborious and time-consuming sample preparation tasks. Additionally, sample preparation methods that are focused on specific glycan(s) require an in-depth understanding of various issues in glycobiology. In this review, modern sample preparation and chemical modification methods for the structural and quantitative glycan analyses together with the challenges and advantages of recent sample preparation methods are summarized. The techniques presented herein can facilitate the exploration of biomarkers, understanding of unknown glycan functions, and development of biopharmaceuticals.
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Habazin S, Štambuk J, Šimunović J, Keser T, Razdorov G, Novokmet M. Mass Spectrometry-Based Methods for Immunoglobulin G N-Glycosylation Analysis. EXPERIENTIA SUPPLEMENTUM (2012) 2021; 112:73-135. [PMID: 34687008 DOI: 10.1007/978-3-030-76912-3_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Mass spectrometry and its hyphenated techniques enabled by the improvements in liquid chromatography, capillary electrophoresis, novel ionization, and fragmentation modes are truly a cornerstone of robust and reliable protein glycosylation analysis. Boost in immunoglobulin G (IgG) glycan and glycopeptide profiling demands for both applied biomedical and research applications has brought many new advances in the field in terms of technical innovations, sample preparation, improved throughput, and confidence in glycan structural characterization. This chapter summarizes mass spectrometry basics, focusing on IgG and monoclonal antibody N-glycosylation analysis on several complexity levels. Different approaches, including antibody enrichment, glycan release, labeling, and glycopeptide preparation and purification, are covered and illustrated with recent breakthroughs and examples from the literature omitting excessive theoretical frameworks. Finally, selected highly popular methodologies in IgG glycoanalytics such as liquid chromatography-mass spectrometry and matrix-assisted laser desorption ionization are discussed more thoroughly yet in simple terms making this text a practical starting point either for the beginner in the field or an experienced clinician trying to make sense out of the IgG glycomic or glycoproteomic dataset.
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Affiliation(s)
- Siniša Habazin
- Glycoscience Research Laboratory, Genos Ltd., Zagreb, Croatia
| | - Jerko Štambuk
- Glycoscience Research Laboratory, Genos Ltd., Zagreb, Croatia
| | | | - Toma Keser
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | | | - Mislav Novokmet
- Glycoscience Research Laboratory, Genos Ltd., Zagreb, Croatia.
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Li W, Ma Y, Guo Z, Xing R, Liu Z. Efficient Screening of Glycan-Specific Aptamers Using a Glycosylated Peptide as a Scaffold. Anal Chem 2020; 93:956-963. [PMID: 33300777 DOI: 10.1021/acs.analchem.0c03675] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abnormal glycan structures are valuable biomarkers for disease states; the development of glycan-specific binders is thereby significantly important. However, the structural homology and weak immunogenicity of glycans pose major hurdles in the evolution of antibodies, while the poor availability of complex glycans also has extremely hindered the selection of anti-glycan aptamers. Herein, we present a new approach to efficiently screen aptamers toward specific glycans with a complex structure, using a glycosylated peptide as a scaffold. In this method, using peptide-imprinted magnetic nanoparticles (MNPs) as a versatile platform, a glycopeptide tryptically digested from a native glycoprotein was selectively entrapped for positive selection, while a nonglycosylated analogue with an identical peptide sequence was synthesized for negative selection. Alternating positive and negative selection steps were carried out to guide the directed evolution of glycan-binding aptamers. As proof of the principle, the biantennary digalactosylated disialylated N-glycan A2G2S2, against which there have been no antibodies and lectins so far, was employed as the target. With the glycoprotein transferrin as a source of target glycan, two satisfied anti-A2G2S2 aptamers were selected within seven rounds. Since A2G2S2 is upregulated in cancerous liver cells, carboxyfluorescein (FAM)-labeled aptamers were prepared as fluorescent imaging reagents, and successful differentiation of cancerous liver cells over normal liver cells was achieved, which demonstrated the application feasibility of the selected aptamers. This approach obviated a tedious glycan preparation process and allowed favorable expose of the intrinsic flexible conformation of natural glycans. Therefore, it holds great promise for developing glycan-specific aptamers for challenging applications such as cancer targeting.
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Affiliation(s)
- Wei Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yanyan Ma
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhanchen Guo
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Rongrong Xing
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhen Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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Affiliation(s)
- Hayden Wilkinson
- NIBRT GlycoScience Group, National Institute for Bioprocessing, Research and Training, Blackrock, Dublin, Ireland
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland, Galway, Ireland
- UCD School of Medicine, College of Health and Agricultural Science, University College Dublin, Dublin, Ireland
| | - Radka Saldova
- NIBRT GlycoScience Group, National Institute for Bioprocessing, Research and Training, Blackrock, Dublin, Ireland
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland, Galway, Ireland
- UCD School of Medicine, College of Health and Agricultural Science, University College Dublin, Dublin, Ireland
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Mass spectrometry-based qualitative and quantitative N-glycomics: An update of 2017-2018. Anal Chim Acta 2019; 1091:1-22. [PMID: 31679562 DOI: 10.1016/j.aca.2019.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 10/04/2019] [Accepted: 10/05/2019] [Indexed: 12/14/2022]
Abstract
N-glycosylation is one of the most frequently occurring protein post-translational modifications (PTMs) with broad cellular, physiological and pathological relevance. Mass spectrometry-based N-glycomics has become the state-of-the-art instrumental analytical pipeline for sensitive, high-throughput and comprehensive characterization of N-glycans and N-glycomes. Improvement and new development of methods in N-glycan release, enrichment, derivatization, isotopic labeling, separation, ionization, MS, tandem MS and informatics accompany side-by-side wider and deeper application. This review provides a comprehensive update of mass spectrometry-based qualitative and quantitative N-glycomics in the years of 2017-2018.
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A practical method of liberating O-linked glycans from glycoproteins using hydroxylamine and an organic superbase. Biochem Biophys Res Commun 2019; 513:186-192. [PMID: 30952424 DOI: 10.1016/j.bbrc.2019.03.144] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 03/22/2019] [Indexed: 12/17/2022]
Abstract
O-Linked glycan liberation from proteins through reductive beta-elimination and hydrazinolysis is widely used, but have yet to satisfy the recent needs for glycan analysis in glycan biomarker research and microheterogeneity evaluation of biopharmaceutical glycosylation. Here, we introduce an alternative method by using hydroxylamine and an organic superbase, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), and optimize the reaction conditions. The developed method afforded comparable results to those of hydrazinolysis, but with less degraded products. In addition, we examined the compatibility of the optimized O-linked glycan liberation with denaturant and detergents. The optimized method also released glycans containing NeuGc without degradation or deacylation. To demonstrate the feasibility of the developed method, we analyzed O-linked glycans of porcine submaxillary mucins separated by supported molecular matrix electrophoresis (SMME) which is previously developed to characterize mucins. The method for O-linked glycan liberation and fluorescent labeling presented here was easy and rapid, and will be practically useful for O-linked glycan analyses.
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