2. GPCR/G Protein
  3. Arrestin Apelin Receptor (APJ)
  4. Elabela(19-32) TFA

Elabela(19-32) TFA is an active fragment of ELABELA (ELA) that binds to apelin receptor (APJ). Elabela(19-32) TFA activates the Gαi1 and β-arrestin-2 signaling pathways with EC50s of 8.6 nM and 166 nM. Elabela(19-32) TFA induces receptor internalization and reduces arterial pressure, exerts positive inotropic effects on the heart.

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Elabela(19-32) TFA Chemical Structure

Elabela(19-32) TFA Chemical Structure

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1 mg USD 100 In-stock
5 mg USD 390 In-stock
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Based on 3 publication(s) in Google Scholar

Other Forms of Elabela(19-32) TFA:

Elabela(19-32) TFA Related Antibodies

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  • Biological Activity

  • Purity & Documentation

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Description

Elabela(19-32) TFA is an active fragment of ELABELA (ELA) that binds to apelin receptor (APJ). Elabela(19-32) TFA activates the Gαi1 and β-arrestin-2 signaling pathways with EC50s of 8.6 nM and 166 nM. Elabela(19-32) TFA induces receptor internalization and reduces arterial pressure, exerts positive inotropic effects on the heart[1].

IC50 & Target

IC50: 8.6 nM (Gαi1) and 166 nM (β-arrestin-2)[1]
In Vitro

Elabela(19-32) TFA (analogue 3) has a Ki of 0.93 nM for binding of radioligand apelin-13[Glp65, Nle75, Tyr77][125I][1].
Elabela(19-32) TFA has an EC50 of 36 nM in HEK293 cells transiently expressing the HA-hAPJ receptor. Elabela(19-32) TFA is slightly less potent than apelin-13 and ELA to elicit receptor internalization[1].
Elabela(19-32) TFA (0.001 to 0.3 nM) has an EC50 of 1.5 pM in inducing changes in left ventricular developed pressure (LVDP) on the Langendorff perfused isolated rat heart[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Elabela(19-32) TFA Related Antibodies
In Vivo

Elabela(19-32) TFA (analogue 3) is rapidly metabolized in rat plasma (t1/2<2 min)[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight

1821.05

Formula

C77H120F3N25O19S2
Appearance

Solid

Color

White to off-white

Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Sealed storage, away from moisture and light, under nitrogen

Powder -80°C 2 years
-20°C 1 year

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

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (54.91 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 33.33 mg/mL (18.30 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.5491 mL 2.7457 mL 5.4913 mL
5 mM 0.1098 mL 0.5491 mL 1.0983 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 and light, under nitrogen). 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
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Volume
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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    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (1.37 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 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

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

    Solubility: ≥ 2.5 mg/mL (1.37 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.
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

Purity: 98.78%

COA (243 KB) LCMS (251 KB)

Handling Instructions (2659 KB)
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 and light, under nitrogen). 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 0.5491 mL 2.7457 mL 5.4913 mL 13.7283 mL
5 mM 0.1098 mL 0.5491 mL 1.0983 mL 2.7457 mL
10 mM 0.0549 mL 0.2746 mL 0.5491 mL 1.3728 mL
15 mM 0.0366 mL 0.1830 mL 0.3661 mL 0.9152 mL
DMSO 20 mM 0.0275 mL 0.1373 mL 0.2746 mL 0.6864 mL
25 mM 0.0220 mL 0.1098 mL 0.2197 mL 0.5491 mL
30 mM 0.0183 mL 0.0915 mL 0.1830 mL 0.4576 mL
40 mM 0.0137 mL 0.0686 mL 0.1373 mL 0.3432 mL
50 mM 0.0110 mL 0.0549 mL 0.1098 mL 0.2746 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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Elabela(19-32) 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:

Elabela(19-32)ArrestinApelin Receptor (APJ)Inhibitorinhibitorinhibit

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