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Yerra NV, Dyaga B, Dadinaboyina SB, Pandeti S, Vaidya JR, Tabet JC, Thota JR. 2-Cyano-3-(2-thienyl)acrylic Acid as a New MALDI Matrix for the Analysis of a Broad Spectrum of Analytes. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:387-393. [PMID: 33274936 DOI: 10.1021/jasms.0c00398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A low-cost synthetic 2-cyano-3-(2-thienyl)acrylic acid (CTA) is developed as a new MALDI matrix for the analysis of various classes of compounds such as lipids (e.g., fatty acids), peptides, proteins, saccharides, natural products (i.e., iridoids), PEGs, and organometallics in the positive-ion mode. The difficulty in the analysis of high molecular mass PEGs was overcome by using CTA as matrix even at low concentrations. Both high molecular mass proteins and peptides were successfully analyzed using CTA. The mass spectra of all of the studied analytes with CTA showed high signal-to-noise (S/N) ratios and spectral resolutions when compared to other conventional matrices such as SA, DHB, DT, and HCCA. However, in the case of peptide analysis with CTA, the resulting mass spectra are found to be similar to that of the well-established HCCA matrix. On the basis of the physicochemical properties of the analytes, the CTA works as a proton/cation or electron-transfer matrix. It proves that the CTA can be used as a common matrix for the analysis of majority classes of analytes instead of using a specific matrix for the particular class of analytes. Further, the CTA provides an advantage in the analysis of unknown samples as it rules out ambiguity in the selection of particular matrix and it may also offer a complete profile of the tissue surface in the MALDI-imaging experiments.
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Affiliation(s)
- Naga Veera Yerra
- Department of Analytical and Structural Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Bharath Dyaga
- Fluoro Agrochemicals Division, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - S Babu Dadinaboyina
- Department of Analytical and Structural Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sukanya Pandeti
- Department of Analytical and Structural Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jayathirtha Rao Vaidya
- Fluoro Agrochemicals Division, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jean-Claude Tabet
- Sorbonne Universités, Campus Pierre et Marie Curie, IPCM, 4 place Jussieu, Paris 75252 Cedex 05, France
- Université Paris-Saclay, CEA, INRAE, Médicaments et Technologies pour la Santé (MTS), MetaboHUB, 91191 Gif-sur-Yvette, France
| | - Jagadeshwar Reddy Thota
- Department of Analytical and Structural Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Pandeti S, Yerra NV, Raju NP, Thota JR. Naturally occurring chrysophanol as matrix-assisted laser desorption ionization matrix for the analysis of a broad spectrum of analytes. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:451-456. [PMID: 29334585 DOI: 10.1002/rcm.8061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 01/04/2018] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Affiliation(s)
- Sukanya Pandeti
- Medicinal and Process Chemistry Division, CSIR - Central Drug Research Institute, Lucknow, 226031, India
- Division of Sophisticated Analytical Instrument Facility, CSIR - Central Drug Research Institute, Lucknow, 226031, India
- Analytical Chemistry and Mass Spectrometry, CSIR - Indian Institute of Chemical Technology, Hyderabad, 500 007, India
- Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - Naga Veera Yerra
- Analytical Chemistry and Mass Spectrometry, CSIR - Indian Institute of Chemical Technology, Hyderabad, 500 007, India
- Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - Namburi Prasada Raju
- Analytical Chemistry and Mass Spectrometry, CSIR - Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Jagadeshwar Reddy Thota
- Division of Sophisticated Analytical Instrument Facility, CSIR - Central Drug Research Institute, Lucknow, 226031, India
- Analytical Chemistry and Mass Spectrometry, CSIR - Indian Institute of Chemical Technology, Hyderabad, 500 007, India
- Academy of Scientific and Innovative Research, New Delhi, 110001, India
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Domann P, Spencer DIR, Harvey DJ. Production and fragmentation of negative ions from neutral N-linked carbohydrates ionized by matrix-assisted laser desorption/ionization. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:469-479. [PMID: 22279023 DOI: 10.1002/rcm.5322] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Although negative ion fragmentation mass spectra of neutral N-linked carbohydrates (those attached to Asn in glycoproteins) provide much more structural information than spectra recorded in positive ion mode, neutral carbohydrates are reluctant to form negative ions by matrix-assisted laser desorption/ionization (MALDI) unless ionized from specific matrices such as nor-harmane or adducted with anions such as chloride. This paper reports the results of experiments to optimize negative ion formation from adducts of N-linked glycans with respect to ion abundance and fragment ion production. The best results were obtained with 2,4,6-trihydroxyacetophenone (THAP) as the matrix with added ammonium nitrate as the salt providing the anion. This approach is demonstrated to be applicable for a wide range of N-linked glycan structures. Phosphate adducts, analogous to those that are usually encountered in electrospray spectra from N-glycans released by protein N-glycosidase F, were produced by addition of ammonium phosphate to the matrix but in relatively low yield allowing competitive ionization of endogenous anionic compounds leading to complex spectra. Fragmentation of the nitrate adducts, which were formed in higher yield, generally paralleled that seen by collision-induced dissociation following ionization by electrospray, with the first stage of the dissociation being the elimination of the nitrate with a proton from one of the hydroxyl groups of the sugar. The spectra of the resulting [M-H](-) species displayed very specific fragment ions, mainly cross-ring and C-type glycosidic cleavage products, that revealed more structural (linkage and branching) information of the compounds than the mainly glycosidic cleavage products that dominated the positive ion spectra.
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Affiliation(s)
- Paula Domann
- LGC Ltd., Queens Road, Teddington, Middlesex, TW11 0LY, UK
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Chernov’yants MS, Aleshina NV, Burykin IV. Chromatographic and electrophoretic determination of thioamides based on thiazole, 1,3,4-thiadiazole, 1,2,4-triazole, and tetrazole. JOURNAL OF ANALYTICAL CHEMISTRY 2011. [DOI: 10.1134/s1061934811010023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jena KK, Narayan R, Raju KVSN. Hyperbranched polyester based on the core + AB2approach: Synthesis and structural investigation. J Appl Polym Sci 2010. [DOI: 10.1002/app.32297] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: an update covering the period 2001-2002. MASS SPECTROMETRY REVIEWS 2008; 27:125-201. [PMID: 18247413 DOI: 10.1002/mas.20157] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
This review is the second update of the original review on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates that was published in 1999. It covers fundamental aspects of the technique as applied to carbohydrates, fragmentation of carbohydrates, studies of specific carbohydrate types such as those from plant cell walls and those attached to proteins and lipids, studies of glycosyl-transferases and glycosidases, and studies where MALDI has been used to monitor products of chemical synthesis. Use of the technique shows a steady annual increase at the expense of older techniques such as FAB. There is an increasing emphasis on its use for examination of biological systems rather than on studies of fundamental aspects and method development and this is reflected by much of the work on applications appearing in tabular form.
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Affiliation(s)
- David J Harvey
- Department of Biochemistry, Oxford Glycobiology Institute, South Parks Road, Oxford OX1 3QU, UK.
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Jena KK, Raju KVSN, Prathab B, Aminabhavi TM. Hyperbranched Polyesters: Synthesis, Characterization, and Molecular Simulations. J Phys Chem B 2007; 111:8801-11. [PMID: 17590037 DOI: 10.1021/jp070513t] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New types of hyperbranched polyesters were synthesized by the reaction of 2,2-bis(hydroxymethyl) propionic acid as an AB2-type monomer with pentaerythritol, trimethylol propane, or glycerol as the core moiety. The obtained globular networks were characterized by NMR and MALDI-TOF spectroscopic techniques. Molecular weights determined by MALDI-TOF were confirmed by gel permeation chromatography. Fourier transform infrared (FTIR) spectroscopy was used for the quantitative evaluation of hydrogen bonding as well as to study the structure-property relationship. To investigate the changes and types of intermolecular H-bonding interactions in hyperbranched polyesters with a variation in molecular structure, the deconvolution of FTIR spectra was carried out using Origin 6.0 software through the Gaussian curve-fitting method. Molecular simulations were performed through molecular mechanics and molecular dynamics (MD) calculations using the DISCOVER module. Cohesive energy density, solubility parameters, and surface properties of the hyperbranched polyesters were calculated. Further, vibrational analysis was computed using MD simulations for all the hyperbranched polyesters developed in this work.
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Affiliation(s)
- Kishore K Jena
- Organic Coatings and Polymers, Indian Institute of Chemical Technology, Hyderabad 500007, India
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Kumari S, Mishra AK, Chattopadhyay DK, Raju KVSN. Synthesis and characterization of hyperbranched polyesters and polyurethane coatings. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22022] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Schiller J, Süss R, Fuchs B, Müller M, Petković M, Zschörnig O, Waschipky H. The suitability of different DHB isomers as matrices for the MALDI-TOF MS analysis of phospholipids: which isomer for what purpose? EUROPEAN BIOPHYSICS JOURNAL: EBJ 2006; 36:517-27. [PMID: 17047951 DOI: 10.1007/s00249-006-0090-6] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2006] [Revised: 07/28/2006] [Accepted: 08/25/2006] [Indexed: 11/25/2022]
Abstract
Although the analysis of large biomolecules is the prime application of matrix-assisted laser desorption and ionization time-of-flight mass spectrometry (MALDI-TOF MS), there is also increasing interest in lipid analysis. Since lipids possess relatively small molecular weights, matrix signals should be as small as possible to avoid overlap with lipid peaks. Although 2,5-dihydroxybenzoic acid (DHB) is an established MALDI matrix, the question whether just this isomer is ideal for lipid analysis was not yet addressed. UV absorptions of all six DHB isomers were determined and their laser desorption spectra recorded. In addition, all isomers were used as matrices to record positive and negative ion mass spectra of selected phospholipids (phosphatidylcholine and -serine): In the order 2,5-, 2,6-, 2,3- and 2,4-DHB, the quality of the positive ion lipid spectra decreases. This correlates well with the decreasing acidity of the applied DHB isomers. The 3,4- and 3,5- isomers give only very weak positive ion signals especially of acidic lipids. In contrast, the most suitable matrices in the negative ion mode are 2,5-, 2,4- and 3,5-DHB. 2,6-DHB does not provide any signal in the negative ion mode due to its marked acidity. Finally, differences in the crystallization behavior of the pure matrix and the matrix/lipid co-crystals were also monitored by atomic force microscopy (AFM): 2,5-DHB gave the smallest crystals and the skinniest layer. It is concluded that basically all DHB isomers can be used as MALDI matrices but the 2,5-isomer represents the most versatile compound.
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Affiliation(s)
- Jürgen Schiller
- Institute of Medical Physics and Biophysics, Medical Faculty, University of Leipzig, Leipzig, Germany.
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Schiller J, Süss R, Arnhold J, Fuchs B, Lessig J, Müller M, Petković M, Spalteholz H, Zschörnig O, Arnold K. Matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF) mass spectrometry in lipid and phospholipid research. Prog Lipid Res 2004; 43:449-88. [PMID: 15458815 DOI: 10.1016/j.plipres.2004.08.001] [Citation(s) in RCA: 252] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The interest in the analysis of lipids and phospholipids is continuously increasing due to the importance of these molecules in biochemistry (e.g. in the context of biomembranes and lipid second messengers) as well as in industry. Unfortunately, commonly used methods of lipid analysis are often time-consuming and tedious because they include previous separation and/or derivatization steps. With the development of "soft-ionization techniques" like electrospray ionization (ESI) or matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF), mass spectrometry became also applicable to lipid analysis. The aim of this review is to summarize so far available experiences in MALDI-TOF mass spectrometric analysis of lipids. It will be shown that MALDI-TOF MS can be applied to all known lipid classes and the characteristics of individual lipids will be discussed. Additionally, some selected applications in medicine and biology, e.g. mixture analysis, cell and tissue analysis and the determination of enzyme activities will be described. Advantages and disadvantages of MALDI-TOF MS in comparison to other established lipid analysis methods will be also discussed.
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Affiliation(s)
- J Schiller
- Medical Department, Institute of Medical Physics and Biophysics, University of Leipzig, Liebigstrasse 27, D-04103 Leipzig, Germany.
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Determination of neutral oligosaccharides in vegetables by matrix-assisted laser desorption/ionization mass spectrometry. Anal Chim Acta 2004. [DOI: 10.1016/j.aca.2004.04.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mirza SP, Raju NP, Vairamani M. Estimation of the proton affinity values of fifteen matrix-assisted laser desorption/ionization matrices under electrospray ionization conditions using the kinetic method. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2004; 15:431-435. [PMID: 14998547 DOI: 10.1016/j.jasms.2003.12.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2003] [Revised: 12/03/2003] [Accepted: 12/03/2003] [Indexed: 05/24/2023]
Abstract
The kinetic method, which is known to be simple, fast and precise, is used for the measurement of proton affinity values of fifteen selected matrix-assisted laser desorption/ionization matrices under electrospray ionization conditions. The stabilization of [M - H](-)/[M + Matrix - H](-) ions for beta-cyclodextrin in negative ion mode has been rationalized based on the proton affinity values of the matrices.
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Affiliation(s)
- Shama Parveen Mirza
- National Center for Mass Spectrometry, Indian Institute of Chemical Technology, Hyderabad, India
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Current literature in mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2001; 36:1324-1333. [PMID: 11754125 DOI: 10.1002/jms.99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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