3
|
Abstract
Analysis of intact proteins by native mass spectrometry has emerged as a powerful tool for obtaining insight into subunit diversity, post-translational modifications, stoichiometry, structural arrangement, stability, and overall architecture. Typically, such an analysis is performed following protein purification procedures, which are time consuming, costly, and labor intensive. As this technology continues to move forward, advances in sample handling and instrumentation have enabled the investigation of intact proteins in situ and in crude samples, offering rapid analysis and improved conservation of the biological context. This emerging field, which involves various ion source platforms such as matrix-assisted laser desorption ionization (MALDI) and electrospray ionization (ESI) for both spatial imaging and solution-based analysis, is expected to impact many scientific fields, including biotechnology, pharmaceuticals, and clinical sciences. In this Perspective, we discuss the information that can be retrieved by such experiments as well as the current advantages and technical challenges associated with the different sampling strategies. Furthermore, we present future directions of these MS-based methods, including current limitations and efforts that should be made to make these approaches more accessible. Considering the vast progress we have witnessed in recent years, we anticipate that the advent of further innovations enabling minimal handling of MS samples will make this field more robust, user friendly, and widespread.
Collapse
Affiliation(s)
- Shay Vimer
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Gili Ben-Nissan
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Michal Sharon
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| |
Collapse
|
7
|
Montowska M, Rao W, Alexander MR, Tucker GA, Barrett DA. Tryptic digestion coupled with ambient desorption electrospray ionization and liquid extraction surface analysis mass spectrometry enabling identification of skeletal muscle proteins in mixtures and distinguishing between beef, pork, horse, chicken, and turkey meat. Anal Chem 2014; 86:4479-87. [PMID: 24673366 DOI: 10.1021/ac5003432] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The use of ambient desorption electrospray ionization mass spectrometry (DESI-MS) and liquid extraction surface analysis mass spectrometry (LESA-MS) is explored for the first time to analyze skeletal muscle proteins obtained from a mixture of standard proteins and raw meat. Single proteins and mixtures of up to five proteins (myoglobin, troponin C, actin, bovine serum albumin (BSA), tropomyosin) were deposited onto a polymer surface, followed by in situ tryptic digestion and comparative analysis using DESI-MS and LESA-MS using tandem electrospray MS. Peptide peaks specific to individual proteins were readily distinguishable with good signal-to-noise ratio in the five-component mixture. LESA-MS gave a more stable analysis and greater sensitivity compared with DESI-MS. Meat tryptic digests were subjected to peptidomics analysis by DESI-MS and LESA-MS. Bovine, horse, pig, chicken, and turkey muscle digests were clearly discriminated using multivariate data analysis (MVA) of the peptidomic data sets. The most abundant skeletal muscle proteins were identified and correctly classified according to the species following MS/MS analysis. The study shows, for the first time, that ambient ionization techniques such as DESI-MS and LESA-MS have great potential for species-specific analysis and differentiation of skeletal muscle proteins by direct surface desorption.
Collapse
Affiliation(s)
- Magdalena Montowska
- Centre for Analytical Bioscience, School of Pharmacy, University of Nottingham , University Park, Nottingham NG7 2RD, United Kingdom
| | | | | | | | | |
Collapse
|
17
|
Pól J, Vidová V, Kruppa G, Kobliha V, Novák P, Lemr K, Kotiaho T, Kostiainen R, Havlíček V, Volný M. Automated Ambient Desorption−Ionization Platform for Surface Imaging Integrated with a Commercial Fourier Transform Ion Cyclotron Resonance Mass Spectrometer. Anal Chem 2009; 81:8479-87. [DOI: 10.1021/ac901368q] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jaroslav Pól
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Veronika Vidová
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Gary Kruppa
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Václav Kobliha
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Petr Novák
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Karel Lemr
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Tapio Kotiaho
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Risto Kostiainen
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Vladimír Havlíček
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| | - Michael Volný
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague, Czech Republic, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014, University of Helsinki, Finland, Department of Analytical Chemistry, Faculty of Science, Palacký University, Tŕ. Svobody 8, CZ-771 46 Olomouc, Czech Republic, and Laboratory of Analytical Chemistry, Department of Chemistry,
| |
Collapse
|