In the evolving field of biochemical research, the KP 54 peptide—often referred to in scientific literature as Kisspeptin-54 (human) or Metastin (1-54)—has garnered significant interest. As someone who follows advancements in peptide science, I have found that understanding the distinction between various members of the kisspeptin (KP) family of pepti Synonyms: KP-54 | KP54 | metastin ; Compound class:Endogenous peptide in human, mouse or rat; Species: Human ; CAS Registry No. 374683-24-6 (Hs) ; Ensembl Gene Read more des is essentia Kisspeptin 10 - an overview l for appreciating their unique roles in biological systems.
Understanding the KP 54 Peptide Structure
The KP 54 molecule is a 54 amino acid peptide encoded by the *KISS1* gene. It is categorized as an endogenous peptide in human, mouse or rat systems. Unlike smaller variants like KP-10, KP-54 is frequently highlighted for its unique structural stability. Research indicates that KP-54 is renowned for its favorable pharmacokinetic attributes, including enhanced stability and an extended duration of action *in vivo* compared to its shorter counterparts.
When discussing peptides of this nature, researchers often point to the GPR54, which is a G protein-coupled receptor that serves as the primary binding site for these ligands. The affinity of Kisspeptin-54 (human) for these receptors—with Ki values often cited in the low nanomolar range (approximately 1.45 nM for human receptors)—demonstrates the high specificity of this peptide.
Scientific Observations and Functional Insights
The interest in KP 54 extends beyond simple structural analysis. Historically, this Kisspeptin-54(human) was identified for its potential role in cellular regulation, specifically regarding its ability to act as a tumor metastasis suppressor.
Furthermore, the scientific community has explored how Kisspeptins regulate the mammalian reproductive axis. This is achiev The KiSS1-derived peptide receptor (also known as GPR54 or the Kisspeptin receptor)is a G protein-coupled receptorwhich binds the peptide hormone kisspeptin ( Read more ed through the interaction between the hypothalamic neuropeptide and the downstr by S Sachania·2019—Our study therefore aimed to assess the effects of Kp10 andKp54on KISS1R-mediated downstream signalling in different cell types.Read more eam signaling pathways that influence hormone secretion. Because Kissp Kisspeptin-54(human) binds to rat and human GPR54 receptors with Ki values of 1.81 nM and 1.45 nM, respectively. Kisspeptin-54(human) hinders tumor metastasis.Read more eptin is a critical regulator of normal reproductive function, it remains a focal point for those studying the Kisspeptin/GPR54 system and how it bridges the gap between various physiologi Kisspeptin-10, humanis a potent vasoconstrictor and inhibitor of angiogenesis. Kisspeptin-10, human acts as a tumor metastasis suppressor via its receptor GPR Read more cal feedback mechanisms.
In addition to its reproductive associations, experimental studies have suggested that KP54 attenuated oxidative stress, neuronal apoptos Kisspeptins(including kisspeptin-54(KP-54), formerly known as metastin) are proteins encoded by the KISS1 gene in humans.Read more is and neurobehavioral impairments in specific models. Observations have also noted that KP-10, KP-13, and KP-54 acted as vasoconstrictors in isolated tissue studies, showcasing the multifunctional nature of this Kisspeptin group.
Global Availability and Research Quality
For those sourcing these compounds for legitimate laboratory research, it is important to identify a reputable global supplier of Kisspeptin-54 (Human)/Metastin (Human, 1-54). High-quality suppliers, particularly those based in regions with advanced biotechnological infrastructure like Japan, typically provide a Certificate of Analysis (CoA) that includes High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) data to verify the purity and identity of the Kisspeptin-54 (27-54) or full-length variants.
Whether you are investigating Kisspeptin 10 (human) or the more stable KP-54, the focus remains on the precision of the Kisspeptin-10, human signaling and the broader applicati by S Sachania·2019—Our study therefore aimed to assess the effects of Kp10 andKp54on KISS1R-mediated downstream signalling in different cell types.Read more ons of the Kisspeptin-10 (KP-10) acts as a tumor metastasis suppressor mechanism.
Final Considerations
It is important to remember that while Kisspeptin is a novel hypothalamic peptide that continues to provide new insights, all research involving these substances must be conducted within controlled, professional environments. As an endogenous peptide, its role in the body is complex and highly regulated. Whether one is comparing Kp54 to other ligands or studying the broader Kisspeptin is involved in the control of human reproduction, the data derived from these studies continues to expand our understanding of how peptides interact with the GPR54 receptor complex.
By maintaining a focus on high-purity research materials and peer-reviewed methodology, the scientific community continues to uncover the nuanced activities of these molecules, ensuring that every observation—from vasoconstriction to hormonal signaling—is grounded in verifiable, reproducible data.