Abstract
Matrix-assisted laser desorption/ionization (MALDI) coupled with time-of-flight (TOF) mass spectrometry (MS) is a rapid and sensitive analytical approach well suited to obtaining molecular weights of peptides and proteins from single-cell samples. The current state of the art in single-cell neuropeptide profiling with MS is highlighted. Strategies for peptide identification and characterization of post-translational modifications are presented. Furthermore, several recent enhancements in MALDI-MS technology, including in situ peptide sequencing, as well as the direct spatial mapping of peptides in cells and tissues, are discussed.
Original language | English (US) |
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Pages (from-to) | 515-521 |
Number of pages | 7 |
Journal | TrAC - Trends in Analytical Chemistry |
Volume | 22 |
Issue number | 8 |
DOIs | |
State | Published - Sep 1 2003 |
Keywords
- Invertebrate
- MALDI
- Mass spectrometry
- Neuropeptide
- Prohormone
- Single-cell analysis
ASJC Scopus subject areas
- Analytical Chemistry