Kisspeptin-54(human) TFA(Synonyms: Metastin(human) TFA)

Kisspeptin-54(human) TFA;(Synonyms: Metastin(human) TFA)

Kisspeptin-54(human) TFA (Metastin(human) TFA) 是一种 Kisspeptin 受体 (KISS1GPR54) 的内源性配体,以高亲和力结合大鼠和人类 GPR54 受体,其 Ki 值分别为 1.81 nM 和 1.45 nM。Kisspeptin-54(human) TFA 可抑制肿瘤转移并刺激促性腺激素分泌。

Kisspeptin-54(human) TFAamp;;(Synonyms: Metastin(human) TFA)

Kisspeptin-54(human) TFA Chemical Structure

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Kisspeptin-54(human) TFA (Metastin(human) TFA) is an endogenous ligand for kisspeptin receptor (KISS1, GPR54). Kisspeptin-54(human) TFA binds to rat and human GPR54 receptors with Ki values of 1.81 nM and 1.45 nM, respectively. Kisspeptin-54(human) TFA hinders tumor metastasis and stimulates gonadotropin secretion[1][2].

IC50 Target

Ki: 1.81 nM (Rat GPR54) and 1.45 nM (Human GPR54)[2]







Sequence Shortening



Room temperature in continental US; may vary elsewhere.


Please store the product under the recommended conditions in the Certificate of Analysis.

Solvent Solubility
In Vitro:;


Peptide Solubility and Storage Guidelines:

1.;;Calculate the length of the peptide.

2.;;Calculate the overall charge of the entire peptide according to the following table:

; Contents Assign value
Acidic amino acid Asp (D), Glu (E), and the C-terminal -COOH. -1
Basic amino acid Arg (R), Lys (K), His (H), and the N-terminal -NH2 +1
Neutral amino acid Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) 0

3.;;Recommended solution:

Overall charge of peptide Details
Negative (lt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (lt;50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, try dissolving the peptide in a 10%-30% acetic acid solution.
3.;;If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0) 1.;;Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first.
2.;;For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.
  • [1]. M L Gottsch, et al. A Role for Kisspeptins in the Regulation of Gonadotropin Secretion in the Mouse. Endocrinology. 2004 Sep;145(9):4073-7.

    [2]. M Kotani, et al. The Metastasis Suppressor Gene KiSS-1 Encodes Kisspeptins, the Natural Ligands of the Orphan G Protein-Coupled Receptor GPR54. J Biol Chem. 2001 Sep 14;276(37):34631-6.