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CAPRRESI: Chimera Assembly by Plasmid Recovery and Restriction Enzyme Site Insertion
Published on: June 25, 2017
PACAP-related peptide (PRP)--molecular evolution and potential functions.
Janice K V Tam1, Leo T O Lee, Billy K C Chow
1School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.
Peptides
|August 24, 2007
Summary
PACAP-related peptide (PRP) is a key focus, with new research suggesting its physiological role in non-mammalian vertebrates. Its function may have been lost in mammals due to receptor evolution.
Area of Science:
- Neuroendocrinology
- Evolutionary Biology
- Peptide Research
Background:
- PACAP-related peptide (PRP) and PACAP are structurally related peptides encoded by the same transcripts.
- Mammalian PRPs were previously thought to have evolved from non-mammalian GHRHs.
- Recent discoveries of GHRH and receptor genes in frogs and fish necessitate a re-evaluation.
Purpose of the Study:
- To standardize nomenclature by naming all GHRH-like peptides as PRPs.
- To establish a foundation for future research on PRP in vertebrates.
- To explore the potential physiological role of PRP in non-mammalian vertebrates.
Main Methods:
- Review of existing literature on GHRH-like peptides and PACAP.
- Analysis of recent discoveries of GHRH and receptor genes in non-mammalian vertebrates.
- Consideration of characterized goldfish PRP receptors and their tissue distribution.
Main Results:
- Proposes the unified term 'PRP' for GHRH-like peptides.
- Highlights the existence of specific PRP receptors in non-mammalian vertebrates, like goldfish.
- Suggests that PRP's function might be lost in mammals due to receptor loss.
Conclusions:
- PRP likely plays a physiological role in non-mammalian vertebrates.
- The loss of PRP receptors in mammals may explain the apparent absence of PRP function.
- Further research into PRP function in vertebrates is warranted, particularly in non-mammalian models.
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