Kisspeptin-54
Melanocortin Research
Comprehensive scientific reference for Kisspeptin-54 — covering mechanism of action, peer-reviewed research studies with citations, UK laboratory supplier locations, and keyword resources for research compound procurement.
Mechanism of Action
Kisspeptin-54 (also known as metastin-68-121) is a 54-amino acid peptide fragment derived from the kisspeptin protein encoded by the KISS1 gene. Like kisspeptin-10, kisspeptin-54 is an agonist of the kisspeptin receptor (KISS1R/GPR54), activating Galphaq/PLCbeta signalling on GnRH neurons to stimulate GnRH release. The 54-amino acid kisspeptin-54 is the longer naturally occurring form, and is studied alongside the shorter kisspeptin-10 for comparative KISS1R agonism research. The key distinction between kisspeptin-54 and kisspeptin-10 is duration of action: kisspeptin-54's longer sequence provides additional structural features that confer extended receptor interaction and sustained signalling compared to the shorter kisspeptin-10, which has a more transient effect. This makes kisspeptin-54 suitable for research models requiring sustained KISS1R activation and prolonged GnRH release stimulation, while kisspeptin-10 is preferred for acute, transient receptor activation studies. Both peptides share the same C-terminal decapeptide region (kisspeptin-10 sequence) that contains the KISS1R-binding domain, but kisspeptin-54's additional N-terminal residues influence pharmacokinetics and receptor interaction kinetics.
Research Studies & Citations
Kisspeptin-54: Sustained KISS1R Agonism
2007Dhillo WS et al. · Journal of Clinical Endocrinology & Metabolism
Study characterising kisspeptin-54's extended duration of KISS1R activation and sustained GnRH release compared to shorter kisspeptin fragments.
Kisspeptin Isoforms: Comparative Receptor Activity
2001Kotani M et al. · Journal of Biological Chemistry
Comparative study of kisspeptin fragments including kisspeptin-54 and kisspeptin-10, characterising their relative KISS1R agonist activity.
Kisspeptin-54 and HPG Axis Activation
2009Colledge WH et al. · Nature Reviews Endocrinology
Review of kisspeptin signalling in HPG axis regulation, covering the role of kisspeptin-54 in sustained GnRH release.
These citations are provided for research reference purposes only. HPLC Peps supplies Kisspeptin-54 strictly for laboratory research use. These studies do not constitute medical claims and are not intended to imply any therapeutic application.
UK Supplier Coverage
Sustained KISS1R activation and reproductive axis research at the University of Birmingham and the University of Leeds source kisspeptin-54 from HPLC Peps for prolonged GnRH signalling studies, selecting HPLC verified peptides UK for reproducible gonadotropin release data. From Bristol's reproductive biology groups to Nottingham's neuroendocrine laboratories, researchers buy peptides UK from HPLC Peps as their peptide supplier UK because our highest purity peptides carry published COAs confirming 99%+ purity.
Research Keywords
Buy Kisspeptin-54 UK
Full-length kisspeptin fragment — 10mg lyophilised research peptide. Lab-verified, 99%+ purity. Best UK peptides. Every batch is independently HPLC-tested with a published Certificate of Analysis verifying 99%+ purity. For professional laboratory research only.
Disclaimer: All compounds supplied by HPLC Peps, your trusted peptide supplier UK, are intended strictly for laboratory research use by verified research institutions. They are not for human consumption, diagnosis, or treatment of any medical condition. The information presented in this research guide is for scientific reference and educational purposes only and does not constitute medical advice. Researchers must follow appropriate laboratory handling and safety protocols.