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

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

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Elabela(19-32) Chemical Structure

Elabela(19-32) Chemical Structure

CAS No. : 1886973-05-2

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5 mg USD 390 In-stock
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Customer Review

Based on 3 publication(s) in Google Scholar

Other Forms of Elabela(19-32):

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  • Biological Activity

  • Purity & Documentation

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Description

Elabela(19-32) is an active fragment of ELABELA (ELA) that binds to apelin receptor (APJ). Elabela(19-32) activates the Gαi1 and β-arrestin-2 signaling pathways with EC50s of 8.6 nM and 166 nM. Elabela(19-32) 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) (analogue 3) has a Ki of 0.93 nM for binding of radioligand apelin-13[Glp65, Nle75, Tyr77][125I][1].
? Elabela(19-32) has an EC50 of 36 nM in HEK293 cells transiently expressing the HA-hAPJ receptor. Elabela(19-32) is slightly less potent than apelin-13 and ELA to elicit receptor internalization[1].
? Elabela(19-32) (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.

In Vivo

Elabela(19-32) (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

1707.03

Formula

C75H119N25O17S2

CAS No.
Appearance

Solid

Color

White to off-white

Sequence

{Glp}-Arg-Arg-Cys-Met-Pro-Leu-His-Ser-Arg-Val-Pro-Phe-Pro

Sequence Shortening

{Glp}-RRCMPLHSRVPFP

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 (58.58 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.5858 mL 2.9291 mL 5.8581 mL
5 mM 0.1172 mL 0.5858 mL 1.1716 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)

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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

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Volume (start)

V1

=
Concentration (final)

C2

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V2

In Vivo:

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 50 mg/mL (29.29 mM); Clear solution; Need ultrasonic

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

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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 1 mM 0.5858 mL 2.9291 mL 5.8581 mL 14.6453 mL
5 mM 0.1172 mL 0.5858 mL 1.1716 mL 2.9291 mL
10 mM 0.0586 mL 0.2929 mL 0.5858 mL 1.4645 mL
15 mM 0.0391 mL 0.1953 mL 0.3905 mL 0.9764 mL
20 mM 0.0293 mL 0.1465 mL 0.2929 mL 0.7323 mL
25 mM 0.0234 mL 0.1172 mL 0.2343 mL 0.5858 mL
30 mM 0.0195 mL 0.0976 mL 0.1953 mL 0.4882 mL
40 mM 0.0146 mL 0.0732 mL 0.1465 mL 0.3661 mL
50 mM 0.0117 mL 0.0586 mL 0.1172 mL 0.2929 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) 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.

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Elabela(19-32)
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