2. GPCR/G Protein
  3. Vasopressin Receptor
  4. D[LEU4,LYS8]-VP TFA

D[LEU4,LYS8]-VP TFA is a selective agonist of vasopressin V1b receptor, with the Kis of 0.16 nM, 0.52 nM, and 0.1.38 nM for rat, human and mouse V1b receptor, respectively. D[LEU4,LYS8]-VP TFA has weak antidiuretic, vasopressor, and in vitro oxytocic activities.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

D[LEU4,LYS8]-VP TFA Chemical Structure

D[LEU4,LYS8]-VP TFA Chemical Structure

Size Price Stock Quantity
5 mg USD 80 In-stock
10 mg USD 130 In-stock
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Based on 1 publication(s) in Google Scholar

Other Forms of D[LEU4,LYS8]-VP TFA:

D[LEU4,LYS8]-VP TFA Related Antibodies

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  • Biological Activity

  • Purity & Documentation

  • References

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Description

D[LEU4,LYS8]-VP TFA is a selective agonist of vasopressin V1b receptor, with the Kis of 0.16 nM, 0.52 nM, and 0.1.38 nM for rat, human and mouse V1b receptor, respectively. D[LEU4,LYS8]-VP TFA has weak antidiuretic, vasopressor, and in vitro oxytocic activities[1][2].

IC50 & Target

vasopressin V1b receptor[1]
Molecular Weight

1140.25

Formula

C49H68F3N11O13S2
Appearance

Solid

Color

White to off-white

Sequence

{Mpa}-Tyr-Phe-Leu-Asn-Cys-Pro-Lys-Gly (Disulfide bridge:Mpa1-Cys6)
Sequence Shortening

{Mpa}-YFLNCPKG-NH2 (Disulfide bridge:Mpa1-Cys6)
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Sealed storage, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (87.70 mM; Need ultrasonic)

DMSO : ≥ 100 mg/mL (87.70 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.8770 mL 4.3850 mL 8.7700 mL
5 mM 0.1754 mL 0.8770 mL 1.7540 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (2.19 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (2.19 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O / DMSO 1 mM 0.8770 mL 4.3850 mL 8.7700 mL 21.9250 mL
5 mM 0.1754 mL 0.8770 mL 1.7540 mL 4.3850 mL
10 mM 0.0877 mL 0.4385 mL 0.8770 mL 2.1925 mL
15 mM 0.0585 mL 0.2923 mL 0.5847 mL 1.4617 mL
20 mM 0.0439 mL 0.2193 mL 0.4385 mL 1.0963 mL
25 mM 0.0351 mL 0.1754 mL 0.3508 mL 0.8770 mL
30 mM 0.0292 mL 0.1462 mL 0.2923 mL 0.7308 mL
40 mM 0.0219 mL 0.1096 mL 0.2193 mL 0.5481 mL
50 mM 0.0175 mL 0.0877 mL 0.1754 mL 0.4385 mL
60 mM 0.0146 mL 0.0731 mL 0.1462 mL 0.3654 mL
80 mM 0.0110 mL 0.0548 mL 0.1096 mL 0.2741 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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D[LEU4,LYS8]-VP TFA Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

D[LEU4,LYS8]-VPVasopressin ReceptorVasopressinV1bantidiureticvasopressoroxytocicInhibitorinhibitorinhibit

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