2. PI3K/Akt/mTOR Metabolic Enzyme/Protease
  3. mTOR Endogenous Metabolite
  4. L-Leucine

L-Leucine  (Synonyms: Leucine)

Cat. No.: HY-N0486 Purity: ≥98.0%
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L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway.

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

L-Leucine Chemical Structure

L-Leucine Chemical Structure

CAS No. : 61-90-5

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Based on 6 publication(s) in Google Scholar

Other Forms of L-Leucine:

L-Leucine Related Antibodies

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Description

L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway[1].

IC50 & Target[1][2]

mTORC1

 

Human Endogenous Metabolite

 

Microbial Metabolite

 

In Vitro

L-Leucine (10 mM) treatment impairs endocrine progenitor cell development[1].
In E13.5 rat pancreatic explants, in absence of added L-Leucine, Ngn3 mRNA levels increased after 1 day of culture, peaked on day 3, and then decreased. When L-Leucine is added, a dramatic decrease is observed in Ngn3 mRNA levels. This decrease in Ngn3 mRNA levels was paralleled by a decrease in the number of Ngn3-expressing cells (4728±408 vs. 959±28; P<0.01). Finally, L-Leucine also caused a dose-dependent repressive effect on the mRNA levels of the three genes, namely Ngn3, its target Insm1, and insulin[1].
Leucine stimulates protein synthesis in skeletal muscle of neonatal pigs by enhancing mTORC1 activation. L-Leucine increases intracellular HIF-1α levels and activates the HIF-1α signaling pathway, and these two effects are mediated by the mTOR signaling pathway. This process results in Ngn3 repression and, consequently, decreases β-cell differentiation[1].
L-leucine stimulates mTORC1 by through a mechanism that involves the leucyl tRNA synthase promoting the activity of GTP activating proteins that act on mTORC1[2].

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

L-Leucine Related Antibodies
In Vivo

L-Leucine (24 g/kg diet) combined with Resveratrol (12.5 mg/kg diet) to diet-induced obese (DIO) mice increases adipose Sirt1 activity[2].
Combination results in significant reductions in body weight, weight gain, visceral adipose tissue mass, fat oxidation and heat production in mice[2].

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

Animal Model: Six-week-old male c57/BL6 mice (fed a high-fat diet with fat to induce obesity)[1]
Dosage: 24 g/kg diet; Resveratrol (low dose; 12.5 mg/kg diet)
Administration: 6 weeks
Result: Treatment in combination with Resveratrol (low dose; 12.5 mg/kg diet) resulted in significant reductions in body weight, weight gain, visceral adipose tissue mass, fat oxidation and heat production, and an associated decrease in respiratory exchange ratio (RER), especially in the dark (feeding) cycle.
Clinical Trial
Molecular Weight

131.17

Formula

C6H13NO2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

N[C@@H](CC(C)C)C(O)=O
Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : 8.33 mg/mL (63.51 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 7.6237 mL 38.1185 mL 76.2369 mL
5 mM 1.5247 mL 7.6237 mL 15.2474 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. 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:

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: 6.25 mg/mL (47.65 mM); Suspended solution; Need ultrasonic and warming and heat to 60°C

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
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: 99.79%

COA (245 KB) HNMR (146 KB) RP-HPLC (102 KB) OR (365 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. 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 7.6237 mL 38.1185 mL 76.2369 mL 190.5924 mL
5 mM 1.5247 mL 7.6237 mL 15.2474 mL 38.1185 mL
10 mM 0.7624 mL 3.8118 mL 7.6237 mL 19.0592 mL
15 mM 0.5082 mL 2.5412 mL 5.0825 mL 12.7062 mL
20 mM 0.3812 mL 1.9059 mL 3.8118 mL 9.5296 mL
25 mM 0.3049 mL 1.5247 mL 3.0495 mL 7.6237 mL
30 mM 0.2541 mL 1.2706 mL 2.5412 mL 6.3531 mL
40 mM 0.1906 mL 0.9530 mL 1.9059 mL 4.7648 mL
50 mM 0.1525 mL 0.7624 mL 1.5247 mL 3.8118 mL
60 mM 0.1271 mL 0.6353 mL 1.2706 mL 3.1765 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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L-Leucine 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:

L-Leucine61-90-5LeucinemTOREndogenous MetaboliteMammalian target of RapamycinInhibitorinhibitorinhibit

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