2. Metabolic Enzyme/Protease
  3. Endogenous Metabolite
  4. L-Isoleucine

L-Isoleucine is an orally active branched chain amino acid, which is the L-enantiomer of isoleucine. L-Isoleucine has a role as a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a plant metabolite, a human metabolite, an algal metabolite and a mouse metabolite. L-Isoleucine regulates the inflammatory response to protect against pathogens in vivo and in vitro.

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L-Isoleucine Chemical Structure

L-Isoleucine Chemical Structure

CAS No. : 73-32-5

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in Water
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Customer Review

Based on 3 publication(s) in Google Scholar

Other Forms of L-Isoleucine:

L-Isoleucine Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

L-Isoleucine is an orally active branched chain amino acid, which is the L-enantiomer of isoleucine. L-Isoleucine has a role as a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a plant metabolite, a human metabolite, an algal metabolite and a mouse metabolite. L-Isoleucine regulates the inflammatory response to protect against pathogens in vivo and in vitro[1].

IC50 & Target

Human Endogenous Metabolite

 

In Vitro

L-Isoleucine (0-16 mM, 12 h and 24 h) effectively relieves the decrease of TNF-α on cell viability in Intestinal epithelioid cells (IEC)[1].

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

L-Isoleucine Related Antibodies

Cell Viability Assay[1]

Cell Line: Intestinal epithelioid cell lines
Concentration: 0-16 mM
Incubation Time: 12 h, 24 h
Result: Relieved the reduction of IEC-18 cell viability induced by TNF-a exposure in intestinal epithelioid cell lines.
In Vivo

L-Isoleucine [1.00% (w/w), p.o., 35 days] alleviates the growth performance impairment induced by dextran sulfate sodium (DSS), relieves the effect of DSS-induced colonic length shortage and the levels of IL-1β, IL-4, and IL-17 change in the colon of rats[1].

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

Animal Model: Male Wistar rats with L-isoleucine-supplemented diet and L-alanine-supplemented diet [1]
Dosage: 1.00% (w/w)
Administration: p.o., 35 d (measure per 3 days)
Result: Alleviated DSS-induced growth performance impairment and delayed the DSS-induced DAI in rats.
Molecular Weight

131.17

Formula

C6H13NO2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

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

Room temperature in continental US; may vary elsewhere.
Storage

Store at room temperature 3 years

In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

H2O : 25 mg/mL (190.59 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

* 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: 10 mg/mL (76.24 mM); Clear solution; Need ultrasonic

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: 99.96%

COA (245 KB) RP-HPLC (199 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

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
80 mM 0.0953 mL 0.4765 mL 0.9530 mL 2.3824 mL
100 mM 0.0762 mL 0.3812 mL 0.7624 mL 1.9059 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-Isoleucine 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-Isoleucine73-32-5Endogenous Metabolitebranched chain amino acidmetaboliteInflammatory responsepathogensInhibitorinhibitorinhibit

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