L-gamma-Glutamyl-L-threonine
Based on 1 Customer Validation
L-gamma-Glutamyl-L-threonine (gamma-Glutamylthreonine; H-γ-Glu-Thr-OH; γ-Glu-Thr) is a dipeptide obtained through the formal condensation of the L-glutamic acid side chain carboxyl group and the L-threonine amino group. L-gamma-Glutamyl-L-threonine is present in high concentrations in human urine and exhibits antibacterial activity against Gram-negative bacterial. L-gamma-Glutamyl-L-threonine is also a flavor compound. Gamma-Glutamylthreonine is a metabolite catalyzed by γ-glutamyl transpeptidase and is associated with immune regulation. Gamma-Glutamylthreonine can be used in research on inflammation and bacterial infections.
Nos produits utilisent uniquement pour la recherche. Nous ne vendons pas aux patients.
- Pureté : 99.97%
- CAS No.: 5652-48-2
- Formule: C9H16N2O6
- Masse moléculaire:248.23
-
Stockage:
Sealed storage, away from moisture and light.
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)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
-
Activité biologique
-
Chemical Information
-
Solvant et solubilité
- Protocole
- Pureté et documentation
- Références
-
Help & FAQs
Activité biologique
Description
In Vitro
L-gamma-Glutamyl-L-threonine (Compound 8) (450-1800 μmol/L) has a taste recognition threshold of 900 μmol/L in bottled water at pH 5.3, and produces a non-specific, slight astringent oral sensation[2].
L-gamma-Glutamyl-L-threonine contributes to the kokumi flavor of water-soluble Parmesan cheese WSE matrix, and the kokumi intensity decreases from 2.2 to 1.3 after the removal of this substance[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
Chemical Information
-
CAS No. 5652-48-2
-
Appearance Solid
-
Masse moléculaire 248.23
-
Formule C9H16N2O6
-
Color White to off-white
-
Synonyms
gamma-Glutamylthreonine; H-γ-Glu-Thr-OH; γ-Glu-Thr
-
Sequence
γ-Glu-Thr
-
Sequence Shortening
γ-ET
-
Livraison
Room temperature in continental US; may vary elsewhere.
-
Stockage
Sealed storage, away from moisture and light
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)
Solvant et solubilité
In Vitro:
DMSO : 100 mg/mL (402.85 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (10.07 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (10.07 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:
-
-
-
-
Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
-
%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
-
%+
-
+%Tween-80 + +
-
%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Protocole
-
Research Protocol for Infectious Diseases
Infectious-disease experiments test how pathogens interact with host barriers, innate immune receptors, inflammatory signaling, pathogen replication, and tissue injury; pattern-recognition receptors such as TLRs, RIG-I-like receptors, NOD-like receptors, and inflammasomes detect microbial molecules and activate NF-κB, interferon, and cytokine responses. The central hypothesis is that infection severity reflects the balance between pathogen burden and host response: protective inflammation restricts pathogen growth, whereas excessive or mislocalized inflammation contributes to tissue damage and disease phenotype. Unresolved questions include which host pathways are protective versus pathogenic, why some infection models fail to translate to human disease, and which combined readouts best predict clinically relevant infection outcomes.
-
Gram Staining of Tissue Sections
Gram staining of tissue sections is a histochemical technique used to differentiate Gram-positive and Gram-negative bacteria within histological specimens based on differences in bacterial cell wall structure and dye retention, adapted from classical bacteriological Gram staining into tissue-compatible “histological Gram stain” variants. In tissue applications, modifications of the Brown-Hopps and Brown-Brenn methods are commonly used to improve differentiation of microorganisms embedded within host connective tissue and to reduce overstaining or loss of Gram-negative signal, which are known limitations of earlier approaches. The principle relies on crystal violet-iodine complex retention in Gram-positive organisms and subsequent decolorization and counterstaining steps that allow contrast visualization of Gram-negative organisms against tissue background.
-
Research Protocol for Inflammation-related Diseases
The NLRP3 inflammasome is a cytosolic innate immune signaling platform that integrates priming signals and danger-signal activation to promote caspase-1 activation, maturation of IL-1β and IL-18, and gasdermin D-mediated pyroptotic cell death. The core experimental logic is to determine whether inflammatory disease phenotypes are driven by increased NLRP3 expression, ASC-containing inflammasome assembly, caspase-1 cleavage, GSDMD cleavage, and extracellular release of IL-1β/IL-18 rather than by nonspecific cell injury alone. The pathway is strongly linked to inflammation-related disease phenotypes because monosodium urate crystals activate NALP3/NLRP3 inflammasome signaling in gout-like crystal inflammation, cholesterol crystals activate NLRP3 inflammasomes in atherogenesis models, and DSS-induced intestinal inflammation has been reported to involve NLRP3 inflammasome activity. However, experimental colitis studies also show context-dependent protective effects of NLRP3 inflammasome co
-
Bacterial live/dead nucleic-acid viability staining
The LIVE/DEAD bacterial viability staining method is based on differential permeability of nucleic-acid-binding fluorescent dyes, most commonly SYTO 9 and propidium iodide (PI), which enables discrimination of bacterial populations with intact versus compromised cytoplasmic membranes. SYTO 9 penetrates both intact and damaged bacterial membranes and binds nucleic acids to produce green fluorescence, whereas propidium iodide penetrates only cells with compromised membranes and fluoresces red while also reducing SYTO 9 signal through competitive binding and fluorescence interactions. The resulting fluorescence pattern is interpreted as a proxy for membrane integrity, which is widely used as an indicator of bacterial viability in microscopy, flow cytometry, and spectroscopic platforms. However, mechanistic studies show that SYTO 9 and PI interactions involve displacement and fluorescence resonance energy transfer effects, which can influence signal interpretation depending on dye ratios a
Pureté et documentation
-
Fiche technique (272 KB)
-
SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
-
Instruction de manipulation (2659 KB)
Références
[1]. Chen Y, et al. The effect of inflammatory proteins on COVID-19 is mediated by blood metabolites: A Mendelian randomization study. Medicine (Baltimore). 2025 Mar 14;104(11):e41852. [Content Brief]
[2]. Hillmann H, et al. Quantitation of Key Tastants and Re-engineering the Taste of Parmesan Cheese. J Agric Food Chem. 2016;64(8):1794-1805. [Content Brief]
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). 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 |
|---|---|---|---|---|---|
| DMSO | 1 mM | 4.0285 mL | 20.1426 mL | 40.2852 mL | 100.7131 mL |
| 5 mM | 0.8057 mL | 4.0285 mL | 8.0570 mL | 20.1426 mL | |
| 10 mM | 0.4029 mL | 2.0143 mL | 4.0285 mL | 10.0713 mL | |
| 15 mM | 0.2686 mL | 1.3428 mL | 2.6857 mL | 6.7142 mL | |
| 20 mM | 0.2014 mL | 1.0071 mL | 2.0143 mL | 5.0357 mL | |
| 25 mM | 0.1611 mL | 0.8057 mL | 1.6114 mL | 4.0285 mL | |
| 30 mM | 0.1343 mL | 0.6714 mL | 1.3428 mL | 3.3571 mL | |
| 40 mM | 0.1007 mL | 0.5036 mL | 1.0071 mL | 2.5178 mL | |
| 50 mM | 0.0806 mL | 0.4029 mL | 0.8057 mL | 2.0143 mL | |
| 60 mM | 0.0671 mL | 0.3357 mL | 0.6714 mL | 1.6786 mL | |
| 80 mM | 0.0504 mL | 0.2518 mL | 0.5036 mL | 1.2589 mL | |
| 100 mM | 0.0403 mL | 0.2014 mL | 0.4029 mL | 1.0071 mL |
L-gamma-Glutamyl-L-threonine Related Classifications
HY-N13356 Related Classifications
Powered by Bioz