Kisspeptin-10

Kisspeptin-10 is a linear 10-residue peptide ending in a C-terminal amide group that has been documented as essential for receptor engagement. The molecule binds the kisspeptin receptor (KISS1R, formerly GPR54), a class A G-protein-coupled receptor expressed on hypothalamic GnRH neurons and on cells in several additional tissues. Pharmacokinetic descriptors documented in published animal-model investigations include rapid plasma clearance and a short systemic half-life under standard parenteral paradigms. Interaction profile in the literature centers on Gq/PLC signaling activation downstream of KISS1R engagement, with downstream investigations of GnRH release, calcium-signaling kinetics in receptor-expressing cell models, and metastasis-suppressor-pathway intersection. All activity descriptors here are framed as documented in published work. Structural confirmation is established by mass spectrometry and HPLC-validated purity on each Certificate of Analysis.

Experimental domains documented in the published literature include KISS1R receptor-binding studies, GnRH-neuron activation assays in hypothalamic explant models, HPG-axis feedback-loop investigations, structure-activity work probing the role of C-terminal residues in receptor engagement, calcium-signaling studies in KISS1R-expressing cell lines, and metastasis-suppressor pathway research in cancer-cell models. Investigators have also characterized kisspeptin-10 in comparative work alongside full-length kisspeptin-54 and other length variants to dissect sequence-level contributions to receptor activation. Use in laboratory research extends to mechanism-elucidation paradigms where the molecule serves as a probe for KISS1R signaling rather than as a defined intervention. The reference standard is supplied for these and equivalent in-vitro experimental contexts only, with no associated guidance for human, clinical, or veterinary application.

Each lot is characterized by reverse-phase HPLC for chromatographic purity and by mass spectrometry for molecular-ion confirmation against the C63H83N17O14 empirical formula. Purity is reported as an HPLC-area percentage on the Certificate of Analysis distributed with every lot, alongside the molecular-weight match within instrument tolerance. Peptide content where applicable is determined by amino-acid analysis or nitrogen-content assay following the analytical method specified on the COA. Residual solvent and water content are reported categorically when these parameters are part of the lot's release specification. The COA records the lot identifier, manufacturing date, and analytical method versions used, providing a traceable provenance chain from synthesis through release. Researchers requiring batch-level analytical detail should reference the COA distributed with the supplied material.

For laboratory storage, the lyophilized reference standard should be held at −20°C in its sealed, light-protected container until ready for analytical use. Allow vials to equilibrate to ambient temperature before opening to avoid moisture condensation on the lyophile. Reconstitution for in-vitro experimental use is typically performed in bacteriostatic water or a researcher-selected buffer compatible with the downstream assay; once reconstituted, store the working solution at 2–8°C and characterize stability in the relevant buffer prior to extended storage. Avoid repeated freeze-thaw cycles of reconstituted material — single-use aliquots are preferred for experiments where peptide integrity is assay-critical. These handling parameters reflect general best-practice for lyophilized peptide reference standards and do not constitute preparation guidance for human or veterinary application.