Dynorphin A (1-10) (TFA)

Name: Dynorphin A (1-10) (TFA)
Brand: MedChemExpress
SKU: HY-P1594A
Rating: 4.5 (1 reviews)

Cat. No.: HY-P1594A Purity: 98.19%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

Dynorphin A (1-10) (TFA), an endogenous opioid neuropeptide, binds to extracellular loop 2 of the κ-opioid receptor. Dynorphin A (1-10) (TFA) also blocks NMDA-activated current with an IC₅₀ of 42.0 μM.

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

Custom Peptide Synthesis

Dynorphin A (1-10) (TFA) Chemical Structure

Size	Price	Stock	Quantity
1 mg	USD 90	In-stock	Estimated Time of Arrival: December 31
5 mg	USD 360	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 560	In-stock	Estimated Time of Arrival: December 31
50 mg		Get quote
100 mg		Get quote

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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of Dynorphin A (1-10) (TFA):

Dynorphin A (1-10) Get quote

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Biological Activity
Purity & Documentation
References
Customer Review

Description

IC₅₀ & Target

NMDA Receptor

κ Opioid Receptor/KOR

In Vitro

Dynorphin A (1-10) (TFA), an endogenous opioid neuropeptide, binds in the transmembrane domain of the κ-receptor^[1]. The non-opioid actions of various forms of Dynorphin A (DynA) are examined on N-methyl-D-aspartate (NMDA) receptor channels in isolated rat trigeminal neurons using the whole-cell patch recording technique. All the dynorphins tested blocked NMDA-activated currents. The blocking actions are voltage-independent. The IC₅₀ is 42.0 μM for DynA(1-10). To determine if shorter dynorphins have the similar blocking property, we examined the action of DynA(1-10) at different membrane potentials. DynA(1-10) blocks I_NMDA to a similar extent as the membrane potentials changed from -80 to +60 mV. Thus, despite a 160-fold difference in the apparent affinities, DynA(1-32) and DynA(1-10) both exert voltage-independent actions on NMDA receptors^[2].

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

Molecular Weight

1348.48

Formula

C₅₉H₉₂F₃N₁₉O₁₄

Appearance

Solid

Color

White to off-white

Sequence

Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile-Arg-Pro

Sequence Shortening

YGGFLRRIRP

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:

DMSO : 100 mg/mL (74.16 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H₂O : 50 mg/mL (37.08 mM; Need ultrasonic)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	0.7416 mL	3.7079 mL	7.4158 mL
5 mM	0.1483 mL	0.7416 mL	1.4832 mL
10 mM	0.0742 mL	0.3708 mL	0.7416 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)

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

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

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 (1.85 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 (1.85 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 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.5 mg/mL (1.85 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)

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: 98.19%

Select Batch:

Data Sheet (271 KB) SDS (251 KB)

COA (241 KB) RP-HPLC (281 KB) Elemental Analysis Report (100 KB)

Handling Instructions (2659 KB)

References

[1]. Paterlini G, et al. Molecular simulation of dynorphin A-(1-10) binding to extracellular loop 2 of the kappa-opioidreceptor. A model for receptor activation. J Med Chem. 1997 Sep 26;40(20):3254-62. [Content Brief]

[2]. Chen L, et al. Dynorphin block of N-methyl-D-aspartate channels increases with the peptide length. J Pharmacol Exp Ther. 1998 Mar;284(3):826-31. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

H₂O / DMSO	1 mM	0.7416 mL	3.7079 mL	7.4158 mL	18.5394 mL
	5 mM	0.1483 mL	0.7416 mL	1.4832 mL	3.7079 mL
	10 mM	0.0742 mL	0.3708 mL	0.7416 mL	1.8539 mL
	15 mM	0.0494 mL	0.2472 mL	0.4944 mL	1.2360 mL
	20 mM	0.0371 mL	0.1854 mL	0.3708 mL	0.9270 mL
	25 mM	0.0297 mL	0.1483 mL	0.2966 mL	0.7416 mL
	30 mM	0.0247 mL	0.1236 mL	0.2472 mL	0.6180 mL
DMSO	40 mM	0.0185 mL	0.0927 mL	0.1854 mL	0.4635 mL
	50 mM	0.0148 mL	0.0742 mL	0.1483 mL	0.3708 mL
	60 mM	0.0124 mL	0.0618 mL	0.1236 mL	0.3090 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.