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Zimnicka MM. Structural studies of supramolecular complexes and assemblies by ion mobility mass spectrometry. MASS SPECTROMETRY REVIEWS 2024; 43:526-559. [PMID: 37260128 DOI: 10.1002/mas.21851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 04/26/2023] [Accepted: 05/10/2023] [Indexed: 06/02/2023]
Abstract
Recent advances in instrumentation and development of computational strategies for ion mobility mass spectrometry (IM-MS) studies have contributed to an extensive growth in the application of this analytical technique to comprehensive structural description of supramolecular systems. Apart from the benefits of IM-MS for interrogation of intrinsic properties of noncovalent aggregates in the experimental gas-phase environment, its merits for the description of native structural aspects, under the premises of having maintained the noncovalent interactions innate upon the ionization process, have attracted even more attention and gained increasing interest in the scientific community. Thus, various types of supramolecular complexes and assemblies relevant for biological, medical, material, and environmental sciences have been characterized so far by IM-MS supported by computational chemistry. This review covers the state-of-the-art in this field and discusses experimental methods and accompanying computational approaches for assessing the reliable three-dimensional structural elucidation of supramolecular complexes and assemblies by IM-MS.
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Affiliation(s)
- Magdalena M Zimnicka
- Mass Spectrometry Group, Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
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2
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Majeed HA, Bos TS, Voeten RLC, Kranenburg RF, van Asten AC, Somsen GW, Kohler I. Trapped ion mobility mass spectrometry of new psychoactive substances: Isomer-specific identification of ring-substituted cathinones. Anal Chim Acta 2023; 1264:341276. [PMID: 37230720 DOI: 10.1016/j.aca.2023.341276] [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: 02/24/2023] [Revised: 04/18/2023] [Accepted: 04/23/2023] [Indexed: 05/27/2023]
Abstract
New psychoactive substances (NPS) are synthetic derivatives of illicit drugs designed to mimic their psychoactive effects. NPS are typically not controlled under drug acts or their legal status depends on their molecular structure. Discriminating isomeric forms of NPS is therefore crucial for forensic laboratories. In this study, a trapped ion mobility spectrometry time-of-flight mass spectrometry (TIMS-TOFMS) approach was developed for the identification of ring-positional isomers of synthetic cathinones, a class of compounds representing two-third of all NPS seized in Europe in 2020. The optimized workflow features narrow ion-trapping regions, mobility calibration by internal reference, and a dedicated data-analysis tool, allowing for accurate relative ion-mobility assessment and high-confidence isomer identification. Ortho-, meta- and para-isomers of methylmethcathinone (MMC) and bicyclic ring isomers of methylone were assigned based on their specific ion mobilities within 5 min, including sample preparation and data analysis. The resolution of two distinct protomers per cathinone isomer added to the confidence in identification. The developed approach was successfully applied to the unambiguous assignment of MMC isomers in confiscated street samples. These findings demonstrate the potential of TIMS-TOFMS for forensic case work requiring fast and highly-confident assignment cathinone-drug isomers in confiscated samples.
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Affiliation(s)
- Hany A Majeed
- Division of Bioanalytical Chemistry, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands; Centre for Analytical Sciences Amsterdam (CASA), 1098 XH, Amsterdam, the Netherlands
| | - Tijmen S Bos
- Division of Bioanalytical Chemistry, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands; Centre for Analytical Sciences Amsterdam (CASA), 1098 XH, Amsterdam, the Netherlands
| | - Robert L C Voeten
- Division of Bioanalytical Chemistry, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands; Centre for Analytical Sciences Amsterdam (CASA), 1098 XH, Amsterdam, the Netherlands
| | - Ruben F Kranenburg
- Centre for Analytical Sciences Amsterdam (CASA), 1098 XH, Amsterdam, the Netherlands; Forensic Laboratory, Unit Amsterdam, Dutch National Police, Kabelweg 25, 1014 BA, Amsterdam, the Netherlands; Van't Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090 GD, Amsterdam, the Netherlands
| | - Arian C van Asten
- Centre for Analytical Sciences Amsterdam (CASA), 1098 XH, Amsterdam, the Netherlands; Van't Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090 GD, Amsterdam, the Netherlands; Co van Ledden Hulsebosch Center (CLHC), Amsterdam Center for Forensic Science and Medicine, P.O. Box 94157, 1090 GD, Amsterdam, the Netherlands
| | - Govert W Somsen
- Division of Bioanalytical Chemistry, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands; Centre for Analytical Sciences Amsterdam (CASA), 1098 XH, Amsterdam, the Netherlands
| | - Isabelle Kohler
- Division of Bioanalytical Chemistry, Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands; Centre for Analytical Sciences Amsterdam (CASA), 1098 XH, Amsterdam, the Netherlands; Co van Ledden Hulsebosch Center (CLHC), Amsterdam Center for Forensic Science and Medicine, P.O. Box 94157, 1090 GD, Amsterdam, the Netherlands.
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3
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Inoue K, Fujihara A. D-Amino acid recognition of tripeptides studied by ultraviolet photodissociation spectroscopy of hydrogen-bonded clusters. Amino Acids 2023:10.1007/s00726-023-03284-3. [PMID: 37310535 DOI: 10.1007/s00726-023-03284-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 05/20/2023] [Indexed: 06/14/2023]
Abstract
To understand the roles of D-amino acids, evaluating their chemical properties in living organisms is essential. Herein, D-amino acid recognition of peptides was investigated using a tandem mass spectrometer equipped with an electrospray ionization source and a cold ion trap. Ultraviolet (UV) photodissociation spectroscopy and water adsorption of hydrogen-bonded protonated clusters of tryptophan (Trp) enantiomers and tripeptides (SAA, ASA, and AAS, where S and A denote L-serine and L-alanine, respectively) were carried out at 8 K in the gas phase. In the UV photodissociation spectrum of H+(D-Trp)ASA, the bandwidth of the S1-S0 transition, which corresponds to the ππ* state of the Trp indole ring, was narrower than those of the other five clusters, H+(D-Trp)SAA, H+(D-Trp)AAS, H+(L-Trp)SAA, H+(L-Trp)ASA, and H+(L-Trp)AAS. In the UV photoexcitation of H+(D-Trp)ASA(H2O)n, which were formed via water adsorption on gas-phase H+(D-Trp)ASA, the evaporation of water molecules was the main photodissociation pathway. An NH2CHCOOH-eliminated ion and H+ASA were observed in the product ion spectrum. By contrast, water molecules adsorbed on the other five clusters remained on the product ions for NH2CHCOOH elimination and Trp detachment after the UV photoexcitation. The results indicated that the indole ring of Trp was located on the surface of H+(D-Trp)ASA, and the amino and carboxyl groups of Trp formed hydrogen bonds in H+(D-Trp)ASA. For the other five clusters, the indole rings of Trp were hydrogen bonded in the clusters, and the amino and carboxyl groups of Trp were present on the cluster surfaces.
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Affiliation(s)
- Kanako Inoue
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Osaka, 599-8531, Japan
| | - Akimasa Fujihara
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Osaka, 599-8531, Japan.
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4
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Xu F, Yang S, Wu F, Ding CF. Chiral Analysis of Linear Protonated Dipeptides by complexing with Cyclodextrins Using Ion-Mobility Mass-Spectrometry and DFT Structural Calculations. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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5
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Wang H, Wu F, Dai X, Fang X, Ding CF. Rapid discrimination of enantiomers by ion mobility mass spectrometry and chemical theoretical calculation: Chiral mandelic acid and its derivatives. Anal Chim Acta 2023; 1239:340725. [PMID: 36628725 DOI: 10.1016/j.aca.2022.340725] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Because R/S-mandelic acids (MA) and their derivatives are critical starting materials or intermediates in the synthesis of chiral drugs, their chirality discrimination is important. In this study, R/S-MA and its derivatives, including R/S-2-phenylpropionic acid (2-PPA), R/S-methoxyphenylaceticacid (MPA), and R/S-2-hydroxy-4-phenylbutyric acid (HPBA), were accurate simultaneous mobility-discriminated by forming diastereomer complexes for the first time, which were obtained by simply mixing with cyclodextrins (α, β, γ-CD) and transition-metal ions (Mn2+, Fe2+, Co2+, Ni2+, Cu2+, and Zn2+). The mass spectra revealed non-covalent diastereomer complexes formed by CD, enantiomers, and metal ions, and ion-mobility spectrometry (IMS) was performed for 109 pairs of complexes. Significant chiral discrimination was observed in the formed diastereomeric complexes, and their separation peak-to-peak resolution (Rp-p) for the enantiomers depended on the transition metal ion type. In most cases, the Rp-p value gradually increases with CD size, with quaternary complexes having the largest Rp-p value. The greatest chiral distinctions of 2-PPA, MA, MPA, and HPBA were obtained by the diastereomeric complex ions of [(2-PPA)(α)2+Zn2+-H]+, [(MA)(α)2+Zn2+-H]+, [(MPA)2(β)+Co2+-H]+, and [(HPBA)(α)2+Fe2+-H]+, with Rp-p values of 1.35, 1.57, 1.70, and 0.71, respectively. Furthermore, the favorable conformation and collisional cross section (CCS) value of the different [CD + R/S-MA + Cu-H]+ complexes were measured using chemical theoretical calculations to detail their intermolecular interaction, revealing that [α-CD + R/S-MA + Cu-H]+ has two favored gas complexes, and the CCS calculated were consistent with the TIMS observed. In addition, R2 > 0.99 was obtained for the relative quantification of the chiral enantiomers. Overall, the proposed method provides a promising strategy for distinguishing the enantiomers of MA and their derivatives, with the advantages of simplicity, speed, and accuracy, without the need for complex chemical derivatization or chromatographic separation.
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Affiliation(s)
- Huanhuan Wang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Fangling Wu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Xinhua Dai
- National Institute of Metrology, Beijing, 100084, China
| | - Xiang Fang
- National Institute of Metrology, Beijing, 100084, China.
| | - Chuan-Fan Ding
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
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Xie C, Chen Y, Wang X, Song Y, Shen Y, Diao X, Zhu L, Wang J, Cai Z. Chiral derivatization-enabled discrimination and on-tissue detection of proteinogenic amino acids by ion mobility mass spectrometry. Chem Sci 2022; 13:14114-14123. [PMID: 36540812 PMCID: PMC9728562 DOI: 10.1039/d2sc03604e] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 11/09/2022] [Indexed: 11/12/2023] Open
Abstract
The importance of chiral amino acids (AAs) in living organisms has been widely recognized since the discovery of endogenous d-AAs as potential biomarkers in several metabolic disorders. Chiral analysis by ion mobility spectrometry-mass spectrometry (IMS-MS) has the advantages of high speed and sensitivity but is still in its infancy. Here, an N α-(2,4-dinitro-5-fluorophenyl)-l-alaninamide (FDAA) derivatization is combined with trapped ion mobility spectrometry-mass spectrometry (TIMS-MS) for chiral AA analysis. For the first time, we demonstrate the simultaneous separation of 19 pairs of chiral proteinogenic AAs in a single fixed condition TIMS-MS run. The utility of this approach is presented for mouse brain extracts by direct-infusion TIMS-MS. The robust separation ability in complex biological samples was proven in matrix-assisted laser desorption/ionization (MALDI) TIMS mass spectrometry imaging (MSI) as well by directly depositing 19 pairs of chiral AAs on a tissue slide following on-tissue derivatization. In addition, endogenous chiral amino acids were also detected and distinguished. The developed methods show compelling application prospects in biomarker discovery and biological research.
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Affiliation(s)
- Chengyi Xie
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
| | - Yanyan Chen
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
| | - Xiaoxiao Wang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
| | - Yuanyuan Song
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
| | - Yuting Shen
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
| | - Xin Diao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
| | - Lin Zhu
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
| | - Jianing Wang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
- Institute for Research and Continuing Education, Hong Kong Baptist University Hong Kong SAR China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University Hong Kong SAR China +852-34117348 +852-34117070
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7
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Sun J, Wang Z, Yang C. Ion Mobility Mass Spectrometry Development and Applications. Crit Rev Anal Chem 2022:1-8. [PMID: 36325979 DOI: 10.1080/10408347.2022.2139589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Although as an analytical method with high specificity and high sensitivity, mass spectrometry (MS) has a wide range of applications in many fields, it still needs other technologies as the assist and supplement to enhance the scope and capability of analysis. Coupling with ion mobility (IM) can make an enhancement effect in the field of pharmaceutical analysis as a supplementary method. The two-dimensional mass technology improves the confidence of compounds annotations while increasing peak capacity, with the gradual deepening of theoretical research on IM-MS, it has shown unique advantages in the complex analysis conditions. IM-MS owns great potential for improving the depth, range, dimension of in-depth drug research. In this review, the principle, instruments and methods, applications, advantages and limitations of IM-MS are described. Here, we also elaborate on the prospects in structural evaluation, separation, and identification of complex compounds for the drug discovery and development phase and the great advantages of macromolecules and omics.
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Affiliation(s)
- Jiahui Sun
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Zhibin Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, China
| | - Chunjuan Yang
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
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8
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Liang Z, Wang H, Wu F, Wang L, Li C, Ding CF. Drug Adulteration Analysis Based on complexation with CD and Metal Ions Using Ion Mobility Spectrometry. J Pharm Anal 2022; 13:287-295. [PMID: 37102111 PMCID: PMC10123940 DOI: 10.1016/j.jpha.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 11/02/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022] Open
Abstract
Drug adulteration and contamination are serious threats to human health therefore, their accurate monitoring is very important. Allopurinol (Alp) and theophylline (Thp) are commonly used drugs for the treatment of gout and bronchitis, while their isomers hypoxanthine (Hyt) and theobromine (Thm) have no effect and affect the efficacy of the drug. In this work, the drug isomers of Alp/Hyt and Thp/Thm are simply mixed with α-, β-, γ-cyclodextrin (CD) and metal ions and separated using trapped ion mobility spectrometry-mass spectrometry (TIMS-MS). TIMS-MS results showed that Alp/Hyt and Thp/Thm isomers could interact with CD and metal ions and form corresponding binary or ternary complexes to achieve their TIMS separation. Different metal ions and CDs showed different separation effect for the isomers, among which Alp and Hyt could be successfully distinguished from the complexes of [Alp/Hyt+γ-CD + Cu-H]+ with separation resolution (R P-P) of 1.51; whereas Thp and Thm could be baseline separated by [Thp/Thm+γ-CD + Ca-H]+ with R P-P of 1.96. Besides, chemical calculations revealed that the complexes were in the inclusion forms, and microscopic interactions were somewhat different, making their mobility separation. Moreover, relative and absolute quantification was investigated with an internal standard to determine the precise isomers content, and good linearity (R 2 > 0.99) was obtained. Finally, the method was applied for the adulteration detection where different drugs and urine were analyzed. In addition, due to the advantages of fast speed, simple operation, high sensitivity, and no chromatographic separation required, the proposed method provides an effective strategy for the drug adulteration detection of isomers.
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Ma X, Zhang C, Cai L. Functional ionic liquids as chiral selector for visual chiral sensing and enantioselective precipitate. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02490-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Czekner J, Schneider EK, Weis P, Kappes MM. Quantitation of Enantiomeric Excess in an Achiral Environment Using Trapped Ion Mobility Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:1692-1696. [PMID: 36018317 DOI: 10.1021/jasms.2c00136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We present a novel, straightforward method to determine the enantiomeric excess (ee) of tryptophan (Trp) and N-tert-butyloxycarbonyl-O-benzylserine (BBS) solutions without chiral additives. For this, lithium carbonate, sodium carbonate, or silver acetate was added to solutions of Trp or BBS. Singly negatively charged dimer and trimer clusters were then formed by electrospray ionization and analyzed using trapped ion mobility spectrometry (TIMS) and time-of-flight mass spectrometry. When a solution contains both enantiomers, homo- and heterochiral clusters are generated which can be separated in the TIMS-tunnel based on their different mobilities using a nitrogen buffer gas. The ratio of homochiral to heterochiral clusters shows a binomial distribution and can be calibrated with solutions of known ee to yield ee measurements of samples with better than 1% accuracy. Samples can be prepared rapidly, and measurements are completed in less than 5 min. Current instrumental limitations restrict this method to rigid molecules with large functional groups adjacent to the chiral centers. Nevertheless, we expect this method to be applicable to many pharmaceuticals and provide the example of 1-methyltryptophan to demonstrate this.
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Affiliation(s)
- Joseph Czekner
- Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber Weg 2, 76131 Karlsruhe, Germany
| | - Erik K Schneider
- Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber Weg 2, 76131 Karlsruhe, Germany
| | - Patrick Weis
- Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber Weg 2, 76131 Karlsruhe, Germany
| | - Manfred M Kappes
- Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber Weg 2, 76131 Karlsruhe, Germany
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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Bogos LG, Pralea IE, Moldovan RC, Iuga CA. Indirect Enantioseparations: Recent Advances in Chiral Metabolomics for Biomedical Research. Int J Mol Sci 2022; 23:ijms23137428. [PMID: 35806433 PMCID: PMC9267260 DOI: 10.3390/ijms23137428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 01/27/2023] Open
Abstract
Chiral metabolomics is starting to become a well-defined research field, powered by the recent advances in separation techniques. This review aimed to cover the most relevant advances in indirect enantioseparations of endogenous metabolites that were published over the last 10 years, including improvements and development of new chiral derivatizing agents, along with advances in separation methodologies. Moreover, special emphasis is put on exciting advances in separation techniques combined with mass spectrometry, such as chiral discrimination by ion-mobility mass spectrometry together with untargeted strategies for profiling of chiral metabolites in complex matrices. These advances signify a leap in chiral metabolomics technologies that will surely offer a solid base to better understand the specific roles of enantiomeric metabolites in systems biology.
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Affiliation(s)
- Luisa-Gabriela Bogos
- Department of Proteomics and Metabolomics, Research Center for Advanced Medicine–MEDFUTURE, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, Louis Pasteur Street 6, 400349 Cluj-Napoca, Romania; (L.-G.B.); (I.-E.P.); (C.-A.I.)
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349 Cluj-Napoca, Romania
| | - Ioana-Ecaterina Pralea
- Department of Proteomics and Metabolomics, Research Center for Advanced Medicine–MEDFUTURE, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, Louis Pasteur Street 6, 400349 Cluj-Napoca, Romania; (L.-G.B.); (I.-E.P.); (C.-A.I.)
| | - Radu-Cristian Moldovan
- Department of Proteomics and Metabolomics, Research Center for Advanced Medicine–MEDFUTURE, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, Louis Pasteur Street 6, 400349 Cluj-Napoca, Romania; (L.-G.B.); (I.-E.P.); (C.-A.I.)
- Correspondence:
| | - Cristina-Adela Iuga
- Department of Proteomics and Metabolomics, Research Center for Advanced Medicine–MEDFUTURE, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, Louis Pasteur Street 6, 400349 Cluj-Napoca, Romania; (L.-G.B.); (I.-E.P.); (C.-A.I.)
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349 Cluj-Napoca, Romania
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12
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Liu Y, Xu F, Wu F, Wang H, Liang Z, Ding CF. Chiral distinction of phenyl-substituted ethanediol enantiomers by measuring the ion mobility of their ternary complexes. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Cooper-Shepherd DA, Olivos HJ, Wu Z, Palmer ME. Exploiting Self-Association to Evaluate Enantiomeric Composition by Cyclic Ion Mobility–Mass Spectrometry. Anal Chem 2022; 94:8441-8448. [PMID: 35657797 PMCID: PMC9201813 DOI: 10.1021/acs.analchem.2c01212] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
The characterization
of enantiomers is an important analytical
challenge in the chemical and life sciences. Thorough evaluation of
the purity of chiral molecules is particularly required in the pharmaceutical
industry where safety concerns are paramount. Assessment of the enantiomeric
composition is still challenging and time-consuming, meaning that
alternative approaches are required. In this study, we exploit the
formation of dimers as diastereomeric pairs of enantiomers to affect
separation by high resolution cyclic ion mobility–mass spectrometry.
Using the example of (R/S)-thalidomide,
we show that even though this is not an enantiomer separation, we
can determine which enantiomer is in excess and obtain quantitative
information on the enantiomer composition without the need for a chiral
modifier. Further examples of the approach are presented, including d/l-tryptophan and (R/S)-propanolol, and demonstrate the need for mobility resolving power
in excess of 400 (CCS/ΔCCS).
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Affiliation(s)
| | - Hernando J. Olivos
- Waters Corporation, 34 Maple Street, Milford, Massachusetts 01757, United States
| | - Zhaoxiang Wu
- Waters Corporation, 34 Maple Street, Milford, Massachusetts 01757, United States
| | - Martin E. Palmer
- Waters Corporation, Stamford Avenue, Altrincham Road, Wilmslow SK9 4AX, United Kingdom
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Zlibut E, May JC, McLean JA. Enantiomer Differentiation of Amino Acid Stereoisomers by Structural Mass Spectrometry Using Noncovalent Trinuclear Copper Complexes. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:996-1002. [PMID: 35580025 DOI: 10.1021/jasms.2c00059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Previous work has demonstrated that copper complexation strategies can be used with tandem MS (MS/MS) and, more recently, ion mobility-mass spectrometry (IM-MS) to differentiate chiral isomers based upon enantiomeric-specific binding. In this study, we investigate the separation of chiral amino acids (AAs) forming trinuclear complexes that can be directly resolved by IM-MS analyses. Twenty standard AAs of both d- and l-chirality were investigated. Specific AAs including d/l-histidine, d/l-proline, d/l-glutamine, d/l-tyrosine, and d/l-tryptophan were evaluated as "chiral selectors" that, when combined with copper, were found to promote selective complexation with specific AA enantiomers. Significant enantiomer differentiation was observed in the IM spectra for hydrophobic AAs acids with peak-to-peak resolutions ranging from 0.63 to 1.15. Among the chiral selectors investigated, histidine provided the best enantioselectivity, followed by tryptophan, suggesting the aromatic structure plays an important role in forming chiral-specific ion complexes. Unlike MS/MS methods where chiral selectors with l-stereochemistry enhance the differentiation, the chirality of the selector was found to have no significant effect on observed IM separation with both d- and l-selectors providing similar resolutions but with inverted IM arrival time ordering. To investigate the structural differences between resolvable chiral complexes, a combination of MS/MS, collision cross-section (CCS) measurements, and molecular mechanics techniques was used. Candidate trinuclear structures of the stoichiometry [(Cu2+)3(d/lIle)3(lHis)2 - 5H]+ were constructed with guidance from empirical MS/MS results. Of the 48 theoretical structures generated, one enantiomeric cluster pair yielded close correlation (<1%) with experimental CCS measurements, suggesting the most enantioselective ion complexes observed in this work are bridged by three coppers.
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Affiliation(s)
- Emanuel Zlibut
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37235 United States
| | - Jody C May
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37235 United States
| | - John A McLean
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37235 United States
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15
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te Brinke E, Arrizabalaga-Larrañaga A, Blokland MH. Insights of ion mobility spectrometry and its application on food safety and authenticity: A review. Anal Chim Acta 2022; 1222:340039. [DOI: 10.1016/j.aca.2022.340039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/01/2022] [Accepted: 06/03/2022] [Indexed: 11/01/2022]
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16
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Ji J, Qu L, Wang Z, Li G, Feng W, Yang G. A facile electrochemical chiral sensor for tryptophan enantiomers based on multiwalled carbon nanotube/hydroxypropyl-β-cyclodextrin functionalized carboxymethyl cellulose. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Yang S, Gu L, Wu F, Dai X, Xu F, Li Q, Fang X, Yu S, Ding CF. The chirality determination of amino acids by forming complexes with cyclodextrins and metal ions using ion mobility spectrometry, and a DFT calculation. Talanta 2022; 243:123363. [PMID: 35272154 DOI: 10.1016/j.talanta.2022.123363] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/15/2022] [Accepted: 03/02/2022] [Indexed: 02/06/2023]
Abstract
Chiral recognition is of highly interest in the areas of chemistry, pharmaceuticals, and bioscience. An effective strategy of enantiomeric determination of amino acids (AAs) was developed in this work. All 19 natural AAs enantiomers can be easily distinguished by ion mobility-mass spectrometry of the non-covalent complexes of AAs with cyclodextrins (α-CD, β-CD and γ-CD) and Mg2+ without any chemical derivatization. Differences of the mobilities between the enantiomers' complexes is from 0.006 to 0.058 V s/cm2. In addition, the complex of [β-CD + Phe + Mg]2+ was selected as an example to study the relative quantification by measuring L/D-Phe at different molar ratio of 10:1 to 1:10 in the μM range, resulting in a good linearity (R2 > 0.99) and high sensitivity at 2 μM. A DFT calculation was also performed to illustrate the detailed molecular structure of the complexes of CDs, Mg2+ and D- or L-Phe. Both experiment and theoretical calculation showed that Mg2+ plays an important role in host/guest interactions, which changed the molecular conformations by non-covalent interaction between Mg2+ and CDs, and resulted in the different collision cross-sections of the complex ions of CDs, Mg2+ and D- or L-AAs in the gas phase. This effective and convenient strategy could potentially be utilized in scientific research and industry for routine enantiomeric determination of natural AAs, peptides and some other small chiral biomolecules such as non-natural AAs and carboxylic acid-containing drugs.
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Affiliation(s)
- Shutong Yang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China; Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Liancheng Gu
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Fangling Wu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Xinhua Dai
- National Institute of Metrology, Beijing, 100029, China
| | - Fuxing Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Qiaoyu Li
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Xiang Fang
- National Institute of Metrology, Beijing, 100029, China.
| | - Shaoning Yu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Chuan-Fan Ding
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
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18
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Wu F, Wu X, Xu F, Han J, Tian H, Ding CF. Recognition of Cis-Trans and Chiral Proline and Its Derivatives by Ion Mobility Measurement of Their Complexes with Natamycin and Metal Ion. Anal Chem 2022; 94:3553-3564. [PMID: 35179030 DOI: 10.1021/acs.analchem.1c04545] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Discrimination of isomers is an important and valuable feature in many analytical applications, and the identification of chiral isomers and cis-trans isomers is the current research focus. In this work, a simple method for direct, simultaneous recognition of d-/l-proline (P), d-/l-/cis-/trans-4-hydroxyproline (4-HP), and d-/l-/cis-/trans-N-tert-butoxycarbony (N-Boc-4-HP) was investigated by means of trapped ion mobility spectrometry-mass spectrometry (TIMS-MS). The isomers with cis-/trans-/d-/l-configuration can be directly recognized based on their mobility upon reaction with natamycin (Nat) and metal ions through noncovalent interactions. The results indicate that the recognition of the enantiomers has certain specificity, and the structural difference of the enantiomers was increased in a complex with Nat and metal ions. Herein, d-/l-P can be recognized through the ternary complexes [P + Nat + Mg - H]+, [P + 2Nat + Ca - H]+, [P + 2Nat + Mn - H]+, and [P + Nat + Cu - H]+. Similarly, c-4-HPL, c-4-HPD, t-4-HPL, and t-4-HPD can be recognized by [4-HP + Nat + Ca - H]+, [4-HP + 2Nat + Ca - H]+, and [4-HP + Nat + Cu - H]+, while N-Boc-c-4-HPL, N-Boc-c-4-HPD, N-Boc-t-4-HPL, and N-Boc-t-4-HPD were recognized through the enantiomer complexes [N-Boc-4-HP + Nat + Li]+, [N-Boc-4-HP + Nat + 2Na - H]+, [N-Boc-4-HP + Nat + K]+, [N-Boc-4-HP + Nat + Mn - H]+, and [N-Boc-4-HP + Nat + Ba - H]+. Moreover, tandem mass spectrometry (MS/MS) results indicated that different collision energies were obtained for the same fragment ions, which implied that the enantiomer complexes that contributed to their mobility separation shared identical interaction mode but had different gas-phase rigid geometries. Furthermore, the relative quantification for the enantiomers was performed, and the results were supported by a satisfactory coefficient (R2 > 0.99). The developed method can provide a promising and powerful strategy for the separation of chiral proline and its d-/l-/cis-/trans derivatives, bearing the advantages of higher speed, better accuracy, high selectivity, and no need for chemical derivatization and chromatographic separation.
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Affiliation(s)
- Fangling Wu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Xishi Wu
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, China
| | - Fuxing Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Jiaoru Han
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Hui Tian
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Chuan-Fan Ding
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
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19
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Zhu K, Zhou L, Wu L, Feng S, Hu H, He J, He Y, Feng Z, Yin Y, Yu D, Cao Z. An
Enzyme‐Free
Amperometric Sensor Based on
Self‐Assembling Ferrocene‐Conjugated
Oligopeptide for Specific Determination of
L
‐Arginine. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kai‐Jie Zhu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, and Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Biological Engineering Changsha University of Science and Technology Changsha Hunan 410114 China
| | - Li Zhou
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, and Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Biological Engineering Changsha University of Science and Technology Changsha Hunan 410114 China
| | - Ling Wu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, and Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Biological Engineering Changsha University of Science and Technology Changsha Hunan 410114 China
| | - Sai‐Fei Feng
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, and Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Biological Engineering Changsha University of Science and Technology Changsha Hunan 410114 China
| | - Hui‐Ying Hu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, and Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Biological Engineering Changsha University of Science and Technology Changsha Hunan 410114 China
| | - Jing‐Lin He
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, and Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Biological Engineering Changsha University of Science and Technology Changsha Hunan 410114 China
| | - Yu‐Min He
- Institute of Subtropical Agriculture Chinese Academy of Sciences Changsha Hunan 410125 China
| | - Ze‐Meng Feng
- Institute of Subtropical Agriculture Chinese Academy of Sciences Changsha Hunan 410125 China
| | - Yu‐Long Yin
- Institute of Subtropical Agriculture Chinese Academy of Sciences Changsha Hunan 410125 China
| | - Donghong Yu
- Department of Chemistry and Bioscience Aalborg University DK‐9220 Aalborg, East Denmark
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, and Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Biological Engineering Changsha University of Science and Technology Changsha Hunan 410114 China
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20
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Gu L, Yang S, Wu F, Xu F, Yu S, Zhou M, Chu Y, Ding CF. Enantio-separation of pregabalin by ternary complexation using trapped ion mobility spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9052. [PMID: 33470461 DOI: 10.1002/rcm.9052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
UNLABELLED Rationale The rapid identification of small-molecule chiral drugs is challenging due to subtle structural differences. Different enantiomers of chiral drugs may produce inverse biological effects through their different pharmacokinetics. Therefore, it is highly desirable to distinguish the chirality of drug molecules. METHODS The chirality of pregabalin was distinguished by studying the ion mobility spectra of the ternary non-covalent complexes formed with cyclodextrins (CDs), pregabalin, and alkali-earth cations using trapped ion mobility spectrometry (TIMS). The ternary non-covalent complex ions were determined by electrospray ionization of mixed solutions. The analyzed sample was simply mixed, without derivatization or sample pretreatment. The relative contents of pregabalin enantiomers were derived using a calibration curve method. RESULTS The ion mobility spectra of several ternary non-covalent complexes formed with α-, β-, and γ-CD, pregabalin, and alkali-earth cations were obtained. We compared their ability to distinguish the chirality of pregabalin. The best peak-to-peak resolution (Rp-p ) was estimated to be 2.20 for [2β-CD + pregabalin + Sr]2+ , which can be ascribed as baseline separation. The derived relative contents for S-pregabalin were in agreement with the actual contents. CONCLUSIONS A novel and convenient method for discriminating the chirality of the pregabalin molecule by TIMS was developed and optimized. The chirality of pregabalin was recognized by studying the ion mobility spectra of the ternary non-covalent complexes, such as [2β-CD + pregabalin + Sr]2+ . This TIMS method could also be used to quantify the relative contents of pregabalin enantiomers.
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Affiliation(s)
- Liancheng Gu
- Department of Chemistry, Laser Chemistry Institute, Fudan University, Shanghai, 200438, China
| | - Shutong Yang
- Department of Chemistry, Laser Chemistry Institute, Fudan University, Shanghai, 200438, China
| | - Fangling Wu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Provincial, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Fuxing Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Provincial, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Shaoning Yu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Provincial, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Mingfei Zhou
- Department of Chemistry, Laser Chemistry Institute, Fudan University, Shanghai, 200438, China
| | - Yanqiu Chu
- Department of Chemistry, Laser Chemistry Institute, Fudan University, Shanghai, 200438, China
| | - Chuan-Fan Ding
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Provincial, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
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21
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Gu L, Wu F, Yang S, Xu F, Dai X, Jiang Y, Fang X, Yu S, Ding CF. Direct distinction of ibuprofen and flurbiprofen enantiomers by ion mobility mass spectrometry of their ternary complexes with metal cations and cyclodextrins in the gas phase. J Sep Sci 2021; 44:2474-2482. [PMID: 33823081 DOI: 10.1002/jssc.202100025] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 12/23/2022]
Abstract
Enantiomeric drugs are widely used and play important roles in pharmaceuticals. Ion mobility spectrometry coupled with mass spectrometry technology provides a unique method for distinguishing the enantiomeric drugs, enantiomeric identification, and quantitation in the gas phase. In this study, enantiomeric molecules of ibuprofen and flurbiprofen were clearly recognized by forming host-guest complex ions using trapped ion mobility time-of-flight mass spectrometry. Ternary complex ions can be produced easily by electrospray ionization of the mixed solutions of ibuprofen, cyclodextrins, and CaCl2 , LiCl, or NaCl, as well as flurbiprofen, cyclodextrins, and CaCl2 . The relative contents of different chiral ibuprofens in a mixed solution were also quantitatively measured. This new method is a simple, effective, and a convenient enantioselective analysis method.
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Affiliation(s)
- Liancheng Gu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China.,Department of Chemistry, Fudan University, Shanghai, P. R. China
| | - Fangling Wu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China
| | - Shutong Yang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China.,Department of Chemistry, Fudan University, Shanghai, P. R. China
| | - Fuxing Xu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China
| | - Xinhua Dai
- National Institute of Metrology, Beijing, P. R. China
| | - You Jiang
- National Institute of Metrology, Beijing, P. R. China
| | - Xiang Fang
- National Institute of Metrology, Beijing, P. R. China
| | - Shaoning Yu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China
| | - Chuan-Fan Ding
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China
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22
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Xie C, Gu L, Wu Q, Li L, Wang C, Yu J, Tang K. Effective Chiral Discrimination of Amino Acids through Oligosaccharide Incorporation by Trapped Ion Mobility Spectrometry. Anal Chem 2021; 93:859-867. [PMID: 33226780 DOI: 10.1021/acs.analchem.0c03461] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chiral analysis is critical to many research fields due to different biological functions of enantiomers in living systems. Although the use of ion mobility spectrometry (IMS) has become an alternative technology in the area of chiral measurements, there is still a lack of a general chiral selector for IMS-based chiral recognition, especially for small chiral molecules. Here, a new method using oligosaccharides as the chiral selector has been developed to discriminate chiral amino acids (AAs) by trapped ion mobility spectrometry-mass spectrometry (TIMS-MS). We analyzed 21 chiral amino acids, including small molecules (e.g., alanine and cysteine). Our data showed that the use of nonreducing tetrasaccharides was effective for the separation of chiral AAs, which differentiated 21 chiral AAs without using metal ions. By further incorporating a copper ion, the separation resolution could be improved to 1.64 on average, which accounts for an additional 52% improvement on top of the already achieved separation in metal-free analysis. These results indicate that the use of tetrasaccharides is an effective strategy for the separation of AA enantiomers by TIMS. The method developed in this study may open up a new strategy for effective IMS-based chiral analysis.
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Affiliation(s)
- Chengyi Xie
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, P. R. China
| | - Liancheng Gu
- Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
| | - Qidi Wu
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, P. R. China
| | - Lei Li
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Chenlu Wang
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Jiancheng Yu
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, P. R. China
| | - Keqi Tang
- Institute of Mass Spectrometry, Ningbo University, Ningbo 315211, P. R. China.,School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
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23
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Will JM, Behrens A, Macke M, Quarles CD, Karst U. Automated Chiral Analysis of Amino Acids Based on Chiral Derivatization and Trapped Ion Mobility–Mass Spectrometry. Anal Chem 2020; 93:878-885. [DOI: 10.1021/acs.analchem.0c03481] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jonas M. Will
- Institute of Inorganic and Analytical Chemistry, University of Muenster, Corrensstr. 28/30, 48149 Muenster, Germany
| | - Arne Behrens
- Institute of Inorganic and Analytical Chemistry, University of Muenster, Corrensstr. 28/30, 48149 Muenster, Germany
| | - Marcel Macke
- Institute of Inorganic and Analytical Chemistry, University of Muenster, Corrensstr. 28/30, 48149 Muenster, Germany
| | - C. Derrick Quarles
- Elemental Scientific Inc., 7277 World Communications Dr., Omaha, Nebraska 68022, United States
| | - Uwe Karst
- Institute of Inorganic and Analytical Chemistry, University of Muenster, Corrensstr. 28/30, 48149 Muenster, Germany
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24
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Enantioselective electrochemical sensor of tyrosine isomers based on macroporous carbon embedded with sulfato-β-Cyclodextrin. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105469] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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25
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Luo MD, Zhou ZW, Zhu ZJ. The Application of Ion Mobility-Mass Spectrometry in Untargeted Metabolomics: from Separation to Identification. JOURNAL OF ANALYSIS AND TESTING 2020. [DOI: 10.1007/s41664-020-00133-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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26
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Wu Q, Wang JY, Han DQ, Yao ZP. Recent advances in differentiation of isomers by ion mobility mass spectrometry. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115801] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Rebrov O, Poline M, Ryding MJ, Thomas RD, Uggerud E, Larsson M. Non-covalently bonded diastereomeric adducts of amino acids and (S)-1-phenylethanol in low-energy dissociative collisions. Mol Phys 2020. [DOI: 10.1080/00268976.2019.1615145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- O. Rebrov
- Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden
| | - M. Poline
- Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden
| | - M. J. Ryding
- Department of Chemistry and Hylleraas Centre for Quantum Molecular Sciences, University of Oslo, Oslo, Norway
| | - R. D. Thomas
- Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden
| | - E. Uggerud
- Department of Chemistry and Hylleraas Centre for Quantum Molecular Sciences, University of Oslo, Oslo, Norway
| | - M. Larsson
- Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden
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28
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29
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Claes BSR, Takeo E, Fukusaki E, Shimma S, Heeren RMA. Imaging Isomers on a Biological Surface: A Review. Mass Spectrom (Tokyo) 2019; 8:A0078. [PMID: 32158629 PMCID: PMC7035452 DOI: 10.5702/massspectrometry.a0078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 10/31/2019] [Indexed: 12/30/2022] Open
Abstract
Mass spectrometry imaging is an imaging technology that allows the localization and identification of molecules on (biological) sample surfaces. Obtaining the localization of a compound in tissue is of great value in biological research. Yet, the identification of compounds remains a challenge. Mass spectrometry alone, even with high-mass resolution, cannot always distinguish between the subtle structural differences of isomeric compounds. This review discusses recent advances in mass spectrometry imaging of lipids, steroid hormones, amino acids and proteins that allow imaging with isomeric resolution. These improvements in detailed identification can give new insights into the local biological activity of isomers.
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Affiliation(s)
- Britt S. R. Claes
- Maastricht MultiModal Molecular Imaging (M4I) Institute, Division of Imaging Mass Spectrometry (IMS), Maastricht University
| | - Emi Takeo
- Department of Biotechnology, Graduate School of Engineering, Osaka University
| | - Eiichiro Fukusaki
- Department of Biotechnology, Graduate School of Engineering, Osaka University
| | - Shuichi Shimma
- Department of Biotechnology, Graduate School of Engineering, Osaka University
| | - Ron M. A. Heeren
- Maastricht MultiModal Molecular Imaging (M4I) Institute, Division of Imaging Mass Spectrometry (IMS), Maastricht University
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30
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Rapid and real-time detection of arginine enantiomers by QCM sensor having a Calix[4]arene receptor bearing asymmetric centers. Talanta 2019; 204:172-181. [DOI: 10.1016/j.talanta.2019.05.093] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/17/2019] [Accepted: 05/22/2019] [Indexed: 12/27/2022]
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31
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32
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Selective chiral recognition of alanine enantiomers by chiral calix[4]arene coated quartz crystal microbalance sensors. Anal Bioanal Chem 2019; 411:2675-2685. [DOI: 10.1007/s00216-019-01705-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 01/31/2019] [Accepted: 02/21/2019] [Indexed: 12/30/2022]
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33
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Pérez-Míguez R, Bruyneel B, Castro-Puyana M, Marina ML, Somsen GW, Domínguez-Vega E. Chiral Discrimination of DL-Amino Acids by Trapped Ion Mobility Spectrometry after Derivatization with (+)-1-(9-Fluorenyl)ethyl Chloroformate. Anal Chem 2019; 91:3277-3285. [PMID: 30682252 PMCID: PMC6404107 DOI: 10.1021/acs.analchem.8b03661] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
![]()
A novel analytical
method based on hybrid trapped ion mobility
spectrometry-time-of-flight mass spectrometry (TIMS-TOFMS) has been
developed to achieve fast enantiomeric separation of amino acids (AAs).
Resolution of chiral AAs was achieved by forming diastereomers through
derivatization with the chiral agent (+)-1-(9-fluorenyl)ethyl chloroformate
(FLEC), avoiding the use of reference compounds. Electrospray ionization
(ESI) in positive mode yielded sodiated FLEC-AAs ions of which the
diastereomers could be separated by TIMS. The effect of other alkali
metal ions (such as Li and K) on the enantioselectivity was studied,
but chiral discrimination was only observed for Na. TIMS conditions,
including voltage ramp, ramp time, and accumulation time were optimized
for each AA, and collision cross sections (CCSs) were determined for
all diastereomers. The migration order of the DL enantiomers was found
to be dependent on the structure of the AA. The resulting TIMS resolution
(K0/ΔK0) for the FLEC-AA diastereomers on average was 115, requiring
a mobility (K0) difference of about 0.009 cm2/(V s) to
achieve 50%-valley separation. From the 21 AAs studied, enantiomer
separation was achieved for 17 AAs with mobility differences ranging
from 0.009 for lysine up to 0.061 cm2/(V s) for asparagine.
Moreover, the presented methodology provided mutual separation of
various AAs, allowing chiral analysis of multiple AAs simultaneously
which may be challenging with previous enantioselective IMS approaches.
It appeared possible to fully resolve all studied DL-AAs using three
distinct TIMS methods, resulting in a total MS run time of about 3
min (1 min per method) and a total analysis time (including derivatization)
of less than 15 min. The method demonstrated capable to determine
enantiomeric ratios down to 2.5% with detection limits for the D enantiomers
in the nanomolar range. This new TIMS-based methodology opens up possibilities
for easy and fast analysis of AA enantiomers.
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Affiliation(s)
- Raquel Pérez-Míguez
- Division of BioAnalytical Chemistry, Amsterdam Institute for Molecules, Medicines and Systems, Department of Chemistry and Pharmaceutical Sciences , Vrije Universiteit Amsterdam , de Boelelaan 1085 , 1081 HV Amsterdam , The Netherlands.,Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences , University of Alcalá , Carretera Madrid-Barcelona Km. 33600 , 28871 , Alcalá de Henares , Madrid , Spain
| | - Ben Bruyneel
- Division of BioAnalytical Chemistry, Amsterdam Institute for Molecules, Medicines and Systems, Department of Chemistry and Pharmaceutical Sciences , Vrije Universiteit Amsterdam , de Boelelaan 1085 , 1081 HV Amsterdam , The Netherlands
| | - María Castro-Puyana
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences , University of Alcalá , Carretera Madrid-Barcelona Km. 33600 , 28871 , Alcalá de Henares , Madrid , Spain
| | - María Luisa Marina
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences , University of Alcalá , Carretera Madrid-Barcelona Km. 33600 , 28871 , Alcalá de Henares , Madrid , Spain
| | - Govert W Somsen
- Division of BioAnalytical Chemistry, Amsterdam Institute for Molecules, Medicines and Systems, Department of Chemistry and Pharmaceutical Sciences , Vrije Universiteit Amsterdam , de Boelelaan 1085 , 1081 HV Amsterdam , The Netherlands
| | - Elena Domínguez-Vega
- Division of BioAnalytical Chemistry, Amsterdam Institute for Molecules, Medicines and Systems, Department of Chemistry and Pharmaceutical Sciences , Vrije Universiteit Amsterdam , de Boelelaan 1085 , 1081 HV Amsterdam , The Netherlands
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Phillips ST, Dodds JN, Ellis BM, May JC, McLean JA. Chiral separation of diastereomers of the cyclic nonapeptides vasopressin and desmopressin by uniform field ion mobility mass spectrometry. Chem Commun (Camb) 2018; 54:9398-9401. [PMID: 30063231 DOI: 10.1039/c8cc03790f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In this study ion mobility-mass spectrometry (IM-MS) is used to distinguish chiral diastereomers of the nonapeptides desmopressin and vasopressin. The differences in gas phase cross sectional area (ca. 2%) were sufficient to directly resolve the enantiomers present in a binary mixture. Results from computational modeling indicate that chiral recognition by IM-MS for nonapeptides is possible due to their diastereomer-specific conformations adopted in the gas-phase, namely a compact ring-tail conformer specific to the l-diastereomer forms.
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Affiliation(s)
- Shawn T Phillips
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, and Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN 3726, USA.
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35
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Fujihara A, Okawa Y. Chiral and molecular recognition of monosaccharides by photoexcited tryptophan in cold gas-phase noncovalent complexes as a model for chemical evolution in interstellar molecular clouds. Anal Bioanal Chem 2018; 410:6279-6287. [DOI: 10.1007/s00216-018-1238-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/18/2018] [Accepted: 06/28/2018] [Indexed: 12/14/2022]
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36
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Fernandez-Maestre R. Buffer gas additives (modifiers/shift reagents) in ion mobility spectrometry: Applications, predictions of mobility shifts, and influence of interaction energy and structure. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:598-613. [PMID: 29689602 DOI: 10.1002/jms.4190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 03/24/2018] [Accepted: 04/07/2018] [Indexed: 06/08/2023]
Abstract
Ion mobility spectrometry (IMS) is an analytical technique used for fast and sensitive detection of illegal substances in customs and airports, diagnosis of diseases through detection of metabolites in breath, fundamental studies in physics and chemistry, space exploration, and many more applications. Ion mobility spectrometry separates ions in the gas-phase drifting under an electric field according to their size to charge ratio. Ion mobility spectrometry disadvantages are false positives that delay transportation, compromise patient's health and other negative issues when IMS is used for detection. To prevent false positives, IMS measures the ion mobilities in 2 different conditions, in pure buffer gas or when shift reagents (SRs) are introduced in this gas, providing 2 different characteristic properties of the ion and increasing the chances of right identification. Mobility shifts with the introduction of SRs in the buffer gas are due to clustering of analyte ions with SRs. Effective SRs are polar volatile compounds with free electron pairs with a tendency to form clusters with the analyte ion. Formation of clusters is favored by formation of stable analyte ion-SR hydrogen bonds, high analytes' proton affinity, and low steric hindrance in the ion charge while stabilization of ion charge by resonance may disfavor it. Inductive effects and the number of adduction sites also affect cluster formation. The prediction of IMS separations of overlapping peaks is important because it simplifies a trial and error procedure. Doping experiments to simplify IMS spectra by changing the ion-analyte reactions forming the so-called alternative reactant ions are not considered in this review and techniques other than drift tube IMS are marginally covered.
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37
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Wollschläger JM, Simon K, Gaedke M, Schalley CA. Ion mobility and gas phase H/D exchange: revealing the importance of a single hydrogen bond for the chiral recognition of crown ether ammonium complexes. Chem Commun (Camb) 2018; 54:4967-4970. [PMID: 29701736 DOI: 10.1039/c8cc01671b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Two new BINOL-based chiral crown ether/ammonium complexes are studied by travelling-wave ion-mobility spectrometry. Homo- and heterochiral crown ether/ammonium complexes differ in their collision cross sections, and these differences go along with changes in hydrogen bonding as revealed by gas phase H/D-exchange experiments. Applications for the determination of enantiomeric excess are discussed.
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Affiliation(s)
- Jan M Wollschläger
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany.
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38
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Yu X, Chau MC, Tang WK, Siu CK, Yao ZP. Self-Assembled Binuclear Cu(II)–Histidine Complex for Absolute Configuration and Enantiomeric Excess Determination of Naproxen by Tandem Mass Spectrometry. Anal Chem 2018; 90:4089-4097. [DOI: 10.1021/acs.analchem.7b05407] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiangying Yu
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation) and Shenzhen Key Laboratory of Food Biological Safety Control, Shenzhen Research Institute of Hong Kong Polytechnic University, Shenzhen 518057, China
- School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Man-Chu Chau
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR, China
| | - Wai Kit Tang
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR, China
| | - Chi-Kit Siu
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR, China
| | - Zhong-Ping Yao
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation) and Shenzhen Key Laboratory of Food Biological Safety Control, Shenzhen Research Institute of Hong Kong Polytechnic University, Shenzhen 518057, China
- State Key Laboratory of Chirosciences, Food Safety and Technology Research Centre and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules (Yanbian University), Ministry of Education, Yanji 133002, Jilin, China
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39
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Chen X, Kang Y, Zeng S. Analysis of stereoisomers of chiral drug by mass spectrometry. Chirality 2018; 30:609-618. [DOI: 10.1002/chir.22833] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/02/2018] [Accepted: 01/15/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Xiaolei Chen
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences, Zhejiang University; Hangzhou Zhejiang China
| | - Yu Kang
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences, Zhejiang University; Hangzhou Zhejiang China
| | - Su Zeng
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research; College of Pharmaceutical Sciences, Zhejiang University; Hangzhou Zhejiang China
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40
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Fujihara A, Inoue H, Sogi M, Tajiri M, Wada Y. Chiral and Molecular Recognition through Protonation between Aromatic Amino Acids and Tripeptides Probed by Collision-Activated Dissociation in the Gas Phase. Molecules 2018; 23:molecules23010162. [PMID: 29342843 PMCID: PMC6017851 DOI: 10.3390/molecules23010162] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/06/2018] [Accepted: 01/11/2018] [Indexed: 01/14/2023] Open
Abstract
Chiral and molecular recognition through protonation was investigated through the collision-activated dissociation (CAD) of protonated noncovalent complexes of aromatic amino acid enantiomers with l-alanine- and l-serine-containing tripeptides using a linear ion trap mass spectrometer. In the case of l-alanine-tripeptide (AAA), NH₃ loss was observed in the CAD of heterochiral H⁺(d-Trp)AAA, while H₂O loss was the main dissociation pathways for l-Trp, d-Phe, and l-Phe. The protonation site of heterochiral H⁺(d-Trp)AAA was the amino group of d-Trp, and the NH₃ loss occurred from H⁺(d-Trp). The H₂O loss indicated that the proton was attached to the l-alanine tripeptide in the noncovalent complexes. With the substitution of a central residue of l-alanine tripeptide to l-Ser, ASA recognized l-Phe by protonation to the amino group of l-Phe in homochiral H⁺(l-Phe)ASA. For the protonated noncovalent complexes of His enantiomers with tripeptides (AAA, SAA, ASA, and AAS), protonated His was observed in the spectra, except for those of heterochiral H⁺(d-His)SAA and H⁺(d-His)AAS, indicating that d-His did not accept protons from the SAA and AAS in the noncovalent complexes. The amino-acid sequences of the tripeptides required for the recognition of aromatic amino acids were determined by analyses of the CAD spectra.
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Affiliation(s)
- Akimasa Fujihara
- Department of Chemistry, Osaka Prefecture University, Osaka 599-8531, Japan.
| | - Hikaru Inoue
- Department of Chemistry, Osaka Prefecture University, Osaka 599-8531, Japan.
| | - Masanobu Sogi
- Department of Chemistry, Osaka Prefecture University, Osaka 599-8531, Japan.
| | - Michiko Tajiri
- Department of Molecular Medicine, Osaka Women's and Children's Hospital, Osaka 594-1101, Japan.
| | - Yoshinao Wada
- Department of Molecular Medicine, Osaka Women's and Children's Hospital, Osaka 594-1101, Japan.
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41
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Kulyk K, Rebrov O, Ryding M, Thomas RD, Uggerud E, Larsson M. Low-Energy Collisions of Protonated Enantiopure Amino Acids with Chiral Target Gases. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:2686-2691. [PMID: 28936701 PMCID: PMC5707228 DOI: 10.1007/s13361-017-1796-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/20/2017] [Accepted: 08/23/2017] [Indexed: 06/07/2023]
Abstract
Here we report on the gas-phase interactions between protonated enantiopure amino acids (L- and D-enantiomers of Met, Phe, and Trp) and chiral target gases [(R)- and (S)-2-butanol, and (S)-1-phenylethanol] in 0.1-10.0 eV low-energy collisions. Two major processes are seen to occur over this collision energy regime, collision-induced dissociation and ion-molecule complex formation. Both processes were found to be independent of the stereo-chemical composition of the interacting ions and targets. These data shed light on the currently debated mechanisms of gas-phase chiral selectivity by demonstrating the inapplicability of the three-point model to these interactions, at least under single collision conditions. Graphical Abstract.
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Affiliation(s)
- K Kulyk
- Department of Physics, Stockholm University, SE-10691, Stockholm, Sweden.
- SCA R&D Centre, Sidsjövägen 2, SE-85121, Sundsvall, Sweden.
| | - O Rebrov
- Department of Physics, Stockholm University, SE-10691, Stockholm, Sweden
| | - M Ryding
- Department of Chemistry, University of Oslo, NO-0315, Oslo, Norway
| | - R D Thomas
- Department of Physics, Stockholm University, SE-10691, Stockholm, Sweden
| | - E Uggerud
- Department of Chemistry, University of Oslo, NO-0315, Oslo, Norway
| | - M Larsson
- Department of Physics, Stockholm University, SE-10691, Stockholm, Sweden
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