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Liao J, Wang H, Zhou S, Liu Y, Zhao X, Pan Y. α-Cyano-3-aminocinnamic acid: A novel reactive matrix for qualitative and quantitative analysis of plant N-glycans by MALDI-MS. Anal Chim Acta 2023; 1283:341970. [PMID: 37977803 DOI: 10.1016/j.aca.2023.341970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/12/2023] [Accepted: 10/26/2023] [Indexed: 11/19/2023]
Abstract
N-glycans have a diversity of crucial biological roles in organisms. Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) has become an indispensable analytical instrument for biomolecules. However, due to the inherent low abundance, high structural heterogeneity, and poor ionization efficiency of N-glycans, as well as the extremely inhomogeneous co-crystal property using traditional matrices, the qualitation and quantitation of N-glycans by MALDI-MS remains challenging. In the present study, α-cyano-3-aminocinnamic acid (3-CACA) was reasonably designed and synthesized as a novel reactive matrix for N-glycan analysis. Combining with traditional matrix α-cyano-4-hydroxycinnamic acid (CHCA) as an acidic catalyst, a combinational matrix 3-CACA/CHCA was obtained with homogeneous co-crystallization and high derivatization efficiency, achieving the sensitive qualitation with the limits of detection low to femtomole and reproducible quantitation with good linearity (R2 > 0.998). As a result, the established method was successfully applied to the on-target derivatization and high-throughput quantification of N-glycans in eight varieties of the peach complex system, indicating that N-glycan has the potential to become a new biomarker for food allergy, and elucidating the prospective correlation between N-glycan epitopes and allergic reactions.
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Affiliation(s)
- Jiancong Liao
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Huiwen Wang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Shiwen Zhou
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Yaqin Liu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Xiaoyong Zhao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China.
| | - Yuanjiang Pan
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China.
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Ni Z, Arevalo R, Bardyn A, Willhite L, Ray S, Southard A, Danell R, Graham J, Li X, Chou L, Briois C, Thirkell L, Makarov A, Brinckerhoff W, Eigenbrode J, Junge K, Nunn BL. Detection of Short Peptides as Putative Biosignatures of Psychrophiles via Laser Desorption Mass Spectrometry. ASTROBIOLOGY 2023; 23:657-669. [PMID: 37134219 DOI: 10.1089/ast.2022.0138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Studies of psychrophilic life on Earth provide chemical clues as to how extraterrestrial life could maintain viability in cryogenic environments. If living systems in ocean worlds (e.g., Enceladus) share a similar set of 3-mer and 4-mer peptides to the psychrophile Colwellia psychrerythraea on Earth, spaceflight technologies and analytical methods need to be developed to detect and sequence these putative biosignatures. We demonstrate that laser desorption mass spectrometry, as implemented by the CORALS spaceflight prototype instrument, enables the detection of protonated peptides, their dimers, and metal adducts. The addition of silicon nanoparticles promotes the ionization efficiency, improves mass resolving power and mass accuracies via reduction of metastable decay, and facilitates peptide de novo sequencing. The CORALS instrument, which integrates a pulsed UV laser source and an Orbitrap™ mass analyzer capable of ultrahigh mass resolving powers and mass accuracies, represents an emerging technology for planetary exploration and a pathfinder for advanced technique development for astrobiological objectives. Teaser: Current spaceflight prototype instrument proposed to visit ocean worlds can detect and sequence peptides that are found enriched in at least one strain of microbe surviving in subzero icy brines via silicon nanoparticle-assisted laser desorption analysis.
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Affiliation(s)
- Ziqin Ni
- University of Maryland, College Park, Maryland, USA
| | | | - Anais Bardyn
- University of Maryland, College Park, Maryland, USA
| | | | - Soumya Ray
- University of Maryland, College Park, Maryland, USA
| | | | - Ryan Danell
- Danell Consulting, Winterville, North Carolina, USA
| | - Jacob Graham
- NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
| | - Xiang Li
- NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
| | - Luoth Chou
- NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
- Georgetown University, Washington, DC, USA
| | - Christelle Briois
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Orléans, France
| | - Laurent Thirkell
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Orléans, France
| | | | | | | | - Karen Junge
- University of Washington, Seattle, Washington, USA
| | - Brook L Nunn
- University of Washington, Seattle, Washington, USA
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