Abstract
The major ganglionic connectives in Aplysia are assayed to determine putative neuropeptides. Matrix-assisted laser desorption/ionization mass spectrometry allows direct measurement of peptides in a nerve. Many previously characterized peptides are observed, including APGWamide, buccalins, small cardioactive peptides, and egg-laying hormone. Several unreported peptides are detected in specific nerves, suggesting they may have important physiological roles. Furthermore, novel processing products of the L5-67 precursor peptide and the APGWamide/cerebral peptide 1 prohormone are strongly suggested, and their interganglionic transport demonstrated.
Original language | English (US) |
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Pages (from-to) | 1425-1433 |
Number of pages | 9 |
Journal | Peptides |
Volume | 19 |
Issue number | 8 |
DOIs | |
State | Published - 1998 |
Keywords
- Aplysia californica
- Cerebral peptide I (CPI)
- Interganglionic transport
- LUQIN
- Mass spectrometry (MS)
- Matrix-assisted laser desorption/ionization (MALDI)
- Neuropeptide
- Peptide processing
ASJC Scopus subject areas
- Biochemistry
- Endocrinology
- Physiology
- Cellular and Molecular Neuroscience