AI Article Synopsis
- - Neuropeptides released by neurons play crucial roles in various brain functions, and a new cDNA sequence related to a cuttlefish gene was cloned, showing high similarity with known FMRFamide-related peptides.
- - The amino acid and nucleotide sequence comparisons indicated a 97% similarity with FMRFamides from other species and confirmed that these peptides are related in their evolutionary development.
- - Expression studies revealed that the cuttlefish gene is widely found in many tissues, particularly the brain, and its interactions with other neuropeptides indicate potential implications for understanding neuropeptide evolution and improving aquaculture practices.
Article Abstract
Neuropeptides are released by neurons that are involved in a wide range of brain functions, such as food intake, metabolism, reproduction, and learning and memory. A full-length cDNA sequence of an gene isolated from the cuttlefish (designated as ) was cloned. The predicted precursor protein contains one putative signal peptide and four FMRFamide-related peptides. Multiple amino acid and nucleotide sequence alignments showed that it shares 97% similarity with the precursor FMRFamides of and and shares 93% and 92% similarity with the gene of the two cuttlefish species, respectively. Moreover, the phylogenetic analysis also suggested that FMRFamide and FMRFamides from and belong to the same sub-branch. Tissue expression analysis confirmed that was widely distributed among tissues and predominantly expressed in the brain at the three development stages. The combined effects of FMRFamide+GnRH and FLRFamide+GnRH showed a marked decrease in the level of the total proteins released in the CHO-K1 cells. This is the first report of in and the results may contribute to future studies of neuropeptide evolution or may prove useful for the development of aquaculture methods for this cuttlefish species.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7180943 | PMC |
| http://dx.doi.org/10.3390/molecules25071636 | DOI Listing |
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